747 results match your criteria Myopia Radial Keratotomy


Implantable Collamer Lens for Management of Pseudophakic Ametropia in Eyes With a Spectrum of Previous Corneal Surgery.

J Refract Surg 2018 Oct;34(10):654-663

Purpose: To assess the visual outcomes, predictability, and safety of the Implantable Collamer Lens (ICL) (STAAR Surgical, Inc., Monrovia, CA) for the management of residual pseudophakic refractive error.

Methods: Forty-nine pseudophakic eyes of 40 patients in which myopic, hyperopic, or toric ICLs were implanted were retrospectively analyzed. Read More

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https://www.healio.com/doiresolver?doi=10.3928/1081597X-2018
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http://dx.doi.org/10.3928/1081597X-20180815-01DOI Listing
October 2018
7 Reads

A Case of Late Spontaneous Post-Radial Keratotomy Corneal Perforation Managed With Specialty Lenses.

Eye Contact Lens 2018 Sep;44 Suppl 1:S341-S344

Department of Ophthalmology (J.V.d.H., K.B., L.A., M.V.H., C.K.), Antwerp University Hospital, Antwerp, Belgium; Faculty of Medicine and Health Sciences (J.V.d.H., K.B., C.K.), University of Antwerp, Antwerp, Belgium; and Lens Optical Technology (L.A., M.V.H.), Lommel, Belgium.

Purpose: To describe a case of spontaneous wound dehiscence 29 years after radial keratotomy (RK) and to illustrate how specialty contact lenses were used for tectonic support and optic correction.

Setting: Tertiary referral center for corneal pathology.

Design: Case report. Read More

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http://dx.doi.org/10.1097/ICL.0000000000000353DOI Listing
September 2018
18 Reads

Corneal hysteresis in post-radial keratotomy primary open-angle glaucoma.

Graefes Arch Clin Exp Ophthalmol 2018 Oct 23;256(10):1971-1976. Epub 2018 Jul 23.

Little Rock Eye Clinic, 201 Executive Court, Little Rock, AR, 72205, USA.

Purpose: Corneal hysteresis (CH) is a corneal biomechanical property measured by the ocular response analyzer (ORA). It is associated with primary open-angle glaucoma development, progression, and severity as well as intraocular pressure (IOP) measurement. Decreases in CH and changes in IOP measurements have been described for laser-assisted refractive surgery; however, patients with prior radial keratotomy (RK) have not been examined. Read More

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http://dx.doi.org/10.1007/s00417-018-4073-yDOI Listing
October 2018

Expulsive aniridia following remote radial keratotomy.

Can J Ophthalmol 2018 04 28;53(2):e50-e52. Epub 2017 Sep 28.

Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ont. Electronic address:

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http://dx.doi.org/10.1016/j.jcjo.2017.07.011DOI Listing
April 2018
2 Reads

Implantation of a Multifocal Toric Intraocular Lens after Radial Keratotomy and Cross-Linking with Hyperopia and Astigmatism Residues: A Case Report.

Case Rep Ophthalmol 2017 May-Aug;8(2):440-445. Epub 2017 Aug 29.

Institute of Ophthalmology, Department of Surgical Sciences, University of Turin, Turin, Italy.

Radial keratotomy is a refractive surgical technique, widely used in the 80s and early 90s to correct myopia and astigmatism, but now overcome by more recent laser techniques. Important consequences, often in patients with more than 45 years of age, are progressive hyperopic shift and/or an increase in corneal astigmatism, whose main cause seems to be an increase in the curvature radius of the central portion of the cornea. This seems to be due to radial keratotomy incisions - with the consequent need for cross-linking - intraocular pressure, and corneal biomechanical parameters. Read More

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http://dx.doi.org/10.1159/000479813DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5597915PMC
August 2017
19 Reads

Correction of hyperopia with astigmatism following radial keratotomy with daily disposable plus spherical contact lens: a case report.

Int Ophthalmol 2018 Oct 30;38(5):2199-2204. Epub 2017 Aug 30.

Department of Ophthalmology, LinKo Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No.5, Fuxing St., Guishan Dist., Taoyuan City, 333, Taiwan.

Purpose: To report the refractive correction in a case of hyperopia and astigmatism following radial keratotomy.

Methods: A case report.

Results: A 47-year-old woman, who had undergone refractive surgery for radial keratotomy in both eyes 22 years before the present study, presented to our clinic with blurred vision. Read More

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http://dx.doi.org/10.1007/s10792-017-0702-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6153900PMC
October 2018
6 Reads

Implantation of Implantable Collamer Lenses After Radial Keratotomy.

J Refract Surg 2017 Jun;33(6):395-398

Purpose: To assess the predictability, efficacy, and safety of posterior chamber phakic implantable collamer lens (ICL) implantation after radial keratotomy.

Methods: In a retrospective non-comparative interventional case series, outcomes in 6 consecutive eyes of 4 patients with residual refraction after radial keratotomy were analyzed after the implantation of ICLs. All of the lenses were implanted to correct the residual refractive error, ranging from -12. Read More

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http://dx.doi.org/10.3928/1081597X-20170426-01DOI Listing
June 2017
3 Reads

[Intraocular pressure measurement inside the anterior chamber: a new technical solution and results].

Vestn Oftalmol 2016;132(6):4-10

Research Institute of Eye Diseases, 11 A, B Rossolimo St., Moscow, 119021, Russian Federation.

Aim: To develop a new manometric device for intravital measurement of intraocular pressure (IOP) in the anterior chamber and to assess tonometric data reliability, including post-radial keratotomy (RK) measurements.

Material And Methods: The experiment was conducted in 2 isolated cadaver eyes, while the clinical study enrolled 20 patients (21 eyes) scheduled for cataract phacoemulsification surgery. Of them, 10 patients (10 eyes) with immature cataract and mild to moderate myopia constituted the control group. Read More

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http://dx.doi.org/10.17116/oftalma201613264-10DOI Listing
June 2017
1 Read

Implantable collamer lens for residual refractive error after corneal refractive surgery.

Int J Ophthalmol 2016 18;9(10):1421-1426. Epub 2016 Oct 18.

Myopia Key Laboratory of the Health Ministry, Shanghai 200031, China; Department of Ophthalmology, EYE and ENT Hospital of Fudan University, Shanghai 200031, China.

Aim: To assess the safety, efficacy, predictability and stability of implantable collamer lens (ICL) for residual refractive error after corneal refractive surgery.

Methods: This study evaluated 19 eyes of 12 patients who underwent ICL implantation after corneal refractive surgeries. They were followed up for 1y to 5y of uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), manifest refractive error, flat and steep K value, axial length, intraocular pressure, corneal endothelial cell density, adverse events after ICL surgery. Read More

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http://dx.doi.org/10.18240/ijo.2016.10.09DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5075656PMC
October 2016
11 Reads

Comparison of Newer IOL Power Calculation Methods for Eyes With Previous Radial Keratotomy.

Invest Ophthalmol Vis Sci 2016 07;57(9):OCT162-8

Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States.

Purpose: To evaluate the accuracy of the optical coherence tomography-based (OCT formula) and Barrett True K (True K) intraocular lens (IOL) calculation formulas in eyes with previous radial keratotomy (RK).

Methods: In 95 eyes of 65 patients, using the actual refraction following cataract surgery as target refraction, the predicted IOL power for each method was calculated. The IOL prediction error (PE) was obtained by subtracting the predicted IOL power from the implanted IOL power. Read More

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http://dx.doi.org/10.1167/iovs.15-18948DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4968777PMC
July 2016
4 Reads

Multifocal Intraocular Lens Results in Correcting Presbyopia in Eyes After Radial Keratotomy.

Eye Contact Lens 2017 Nov;43(6):e22-e25

Department of Ophthalmology (K.H.K., W.S.K.), Haeundae Paik Hospital, Busan, South Korea; Department of Ophthalmology (K.H.K, W.S.K.), Inje University College of Medicine, Busan, South Korea; and Center for Cataract and Presbyopia (K.-w.S.), Balgeunsesang Eye Clinic, Busan, South Korea.

Objectives: To report results of multifocal intraocular lens (IOL) implantation in 2 patients with refractive error and presbyopia after previous radial keratotomy (RK).

Methods: A refractive multifocal IOL with rotational asymmetry (LS313-MF30; Oculentis, Berlin, Germany) was implanted.

Results: The first patient was a 60-year-old man with myopia who underwent unilateral RK 20 years before. Read More

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http://dx.doi.org/10.1097/ICL.0000000000000208DOI Listing
November 2017
2 Reads

Femtosecond-assisted laser in situ keratomileusis for consecutive hyperopia after radial keratotomy.

J Cataract Refract Surg 2015 Aug;41(8):1594-601

From the Siena Eye Laser (Leccisotti, Fields), Poggibonsi, Siena, Italy; the School of Biomedical Sciences (Leccisotti), University of Ulster, Coleraine, United Kingdom.

Purpose: To evaluate femtosecond-assisted laser in situ keratomileusis (LASIK) for the treatment of hyperopic shift after radial keratotomy (RK).

Setting: Private practice, Siena, Italy.

Design: Prospective case series. Read More

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http://dx.doi.org/10.1016/j.jcrs.2015.08.014DOI Listing
August 2015
6 Reads

[Cataract surgery and intraocular lens power calculation after radial keratotomy: analysis of 8 cases].

Nan Fang Yi Ke Da Xue Xue Bao 2015 Jul;35(7):1043-4

Department of Ophthalmology, Fourth Affiliated Hospital, West China Medical Center, Sichuan University, Chengdu 610021, China.E-mail:

Objective: To explore the clinical characteristics of cataract surgery after radial keratotomy (RK) and appropriate calculation of intraocular lens (IOL) power.

Methods: Eight patients with cataract (12 eyes) after RK were treated in our hospital from March, 2010 to June, 2013. The visual acuity, keratometric power and length of the ocular axis were examined before the operation. Read More

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July 2015
8 Reads

Wavefront-Guided Laser Treatment Using a High-Resolution Aberrometer to Measure Irregular Corneas: A Pilot Study.

J Refract Surg 2015 Jun;31(6):411-8

Purpose: To evaluate in a pilot study the visual, refractive, corneal topographic, and aberrometric changes after wavefront-guided LASIK or photorefractive keratectomy (PRK) using a high-resolution aberrometer to calculate the treatment for aberrated eyes.

Methods: Twenty aberrated eyes of 18 patients undergoing wavefront-guided LASIK or PRK using the VISX STARS4IR excimer laser and the iDesign aberrometer (Abbott Medical Optics, Inc., Santa Ana, CA) were enrolled in this prospective study. Read More

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http://www.healio.com/doiresolver?doi=10.3928/1081597X-20150
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http://dx.doi.org/10.3928/1081597X-20150521-08DOI Listing
June 2015
12 Reads

Long-Term Outcomes of Radial Keratotomy, Laser In Situ Keratomileusis, and Astigmatic Keratotomy Performed Consecutively over a Period of 21 Years.

Case Rep Ophthalmol Med 2015 19;2015:592495. Epub 2015 Mar 19.

University of Miami Miller School of Medicine, Bascom Palmer Eye Institute, Miami, FL 33136, USA ; Ophthalmic Biophysics Center, McKnight Vision Center, Miami, FL 33136, USA.

Unlabelled: Purpose. To describe a case of 3 refractive procedures performed in one eye over 2 decades. Methods. Read More

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http://downloads.hindawi.com/journals/criopm/2015/592495.pdf
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http://www.hindawi.com/journals/criopm/2015/592495/
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http://dx.doi.org/10.1155/2015/592495DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4383406PMC
April 2015
29 Reads

Multifocal Corneal Excimer Femtosecond Laser in situ Keratomileusis following Radial Keratotomy: A Case Report with Six Months of Follow-Up.

Case Rep Ophthalmol 2014 Sep 3;5(3):423-8. Epub 2014 Dec 3.

Swiss Eye Research Foundation, ORASIS Eye Clinic, Reinach, Switzerland ; University of Novi Sad, Faculty of Physics, Novi Sad, Serbia ; Medical Faculty, Military Medical Academy, University of Defense, Belgrade, Serbia.

We report the case of a 46-year-old female patient who was referred to our clinic (Orasis Eye Clinic, Reinach, Switzerland) seeking improvement of her distance and near visual acuity. Radial keratotomy (RK) was performed at a younger age on both eyes to correct -5 D myopia. The patient underwent a bilateral same-session multifocal corneal excimer femtosecond laser (Supracor) keratomileusis correction. Read More

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http://dx.doi.org/10.1159/000369920DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4280468PMC
September 2014
2 Reads

Acute hydrops with secondary bacterial keratitis: sequelae of paediatric refractive surgery.

Int Ophthalmol 2014 Dec 5;34(6):1275-8. Epub 2014 Sep 5.

Cornea & Refractive Surgery Services, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India.

A 24-year-old male patient with bilateral high myopia presented to our outpatient department with sudden onset of pain and diminution of vision in his right eye. He had sequentially undergone bilateral trabeculectomy and photorefractive keratectomy at the age of 6 years in both eyes. This was followed by radial keratotomy in right eye at the age of 8 years. Read More

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http://dx.doi.org/10.1007/s10792-014-9986-9DOI Listing
December 2014
5 Reads

Accuracy and stability of hyperopic treatments.

Authors:
Bryan S Lee

Curr Opin Ophthalmol 2014 Jul;25(4):281-5

University of Washington, Seattle, Washington, USA.

Purpose Of Review: Treatment of hyperopia presents greater challenges than treatment of myopia for multiple reasons, including the fact that hyperopia tends to progress with age and becomes more symptomatic with the loss of accommodation.

Recent Findings: Despite these issues, surgeons have multiple options to treat hyperopia successfully. Modern laser vision correction has high success rates for most patients and performs acceptably in the presence of high hyperopia or high cylinder. Read More

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http://dx.doi.org/10.1097/ICU.0000000000000066DOI Listing
July 2014
5 Reads

Manual intrastromal corneal keratotomy: An alternate encouraging approach for refractive error correction.

Oman J Ophthalmol 2014 Jan;7(1):28-32

Department of Refractive Surgery, Sri Venkateshwara Nethralaya, Bangalore, Karnataka, India.

Results of femtosecond based intrastromal astigmatic keratotomy have been reported to be encouraging for correction of Astigmatism. We report a new surgical technique-manual intrastromal corneal keratotomy (MICK) for correction of simple refractive astigmatism (-1.5 DC against the rule). Read More

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http://dx.doi.org/10.4103/0974-620X.127921DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4008897PMC
January 2014
6 Reads

Very high fluence collagen cross-linking as a refractive enhancement of a regressed previous astigmatic keratotomy.

J Refract Surg 2013 Jul;29(7):504-5

Laservision.gr Institute, Athens, Greece.

Purpose: To report a novel application of collagen cross-linking (CXL) in refractive astigmatic enhancement of previously performed astigmatic keratotomy.

Methods: A 28-year-old woman with prior history of bioptics correction of high myopic astigmatism with femtosecond laser-assisted astigmatic keratotomy followed by topography-guided LASIK showed long-term regression of the astigmatism 4 years later. A novel CXL application was employed in an attempt to reverse the regression of the astigmatic keratotomy. Read More

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http://dx.doi.org/10.3928/1081597X-20130515-06DOI Listing
July 2013
9 Reads

Wound healing after keratorefractive surgery: review of biological and optical considerations.

Cornea 2012 Nov;31 Suppl 1:S9-19

Department of Ophthalmology and Visual Sciences, University of Illinois College of Medicine at Chicago, Chicago, IL 60612, USA.

The introduction of the excimer laser for keratorefractive surgery in the 1990 s permanently reshaped the treatment landscape for correcting refractive errors, such as myopia, hyperopia, and astigmatism. Until that point, these treatments had relied on less predictable techniques, such as radial keratotomy and automated lamellar keratectomy. In recent years, other new technologies, along with increased understanding of the basic science of refractive errors, higher-order aberrations, biomechanics, and the biology of corneal wound healing, have allowed for a reduction in the surgical complications of keratorefractive surgery. Read More

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http://dx.doi.org/10.1097/ICO.0b013e31826ab0a7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3682490PMC
November 2012
5 Reads

Orbscan II and double-K method for IOL calculation after refractive surgery.

Graefes Arch Clin Exp Ophthalmol 2012 Jul 29;250(7):1029-34. Epub 2012 Mar 29.

Department of Ophthalmology, Hospital de Clínicas de Porto Alegre, Federal University of Rio Grande do Sul, Av. Dr. Nilo Peçanha 724/401, São Paulo, Brazil.

Background: Precise IOL calculation in post-refractive surgery patients is still a challenge for the cataract surgeon. The purpose of this study is to test whether adding Orbscan II values into the double-K method improves IOL calculation in this group of patients.

Methods: A prospective study with 43 eyes previously submitted to refractive surgery that underwent cataract extraction. Read More

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http://link.springer.com/10.1007/s00417-012-1974-z
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http://dx.doi.org/10.1007/s00417-012-1974-zDOI Listing
July 2012
15 Reads

Ruptured globe 20 years after radial and transverse keratotomy.

Int Ophthalmol 2012 Feb 14;32(1):51-3. Epub 2012 Jan 14.

Department of Ophthalmology, Faculty of Medicine, Jordan University of Science and Technology, PO Box 1099, Irbid 21110, Jordan.

To report a case of corneal rupture due to blunt trauma occurring 20 years after radial keratotomy (RK) and transverse keratotomy. A 57-year-old woman sustained direct blunt trauma to her right eye. Ocular examination revealed a ruptured globe involving two of the eight RK incisions connected together across the visual axis with iris incarceration in the wound. Read More

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http://dx.doi.org/10.1007/s10792-011-9504-2DOI Listing
February 2012
2 Reads

Is topography-guided ablation profile centered on the corneal vertex better than wavefront-guided ablation profile centered on the entrance pupil?

J Refract Surg 2012 Feb 21;28(2):139-43. Epub 2011 Nov 21.

London Vision Clinic, London, United Kingdom.

Purpose: To illustrate the hypothesis that corneal vertex centration is superior to entrance pupil centration when guiding an ablation by wavefront.

Methods: In one case example of therapeutic retreatment for treatment zone decentration after primary radial keratotomy (RK) centered on the entrance pupil (line of sight), both a whole-eye wavefront-guided ablation profile (WASCA data) and a topography-guided ablation profile (Atlas data) were generated using the CRS-Master (Carl Zeiss Meditec) and compared. The patient had a large vertical angle kappa. Read More

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http://www.slackinc.com/doi/resolver.asp?doi=10.3928/1081597
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http://dx.doi.org/10.3928/1081597X-20111115-01DOI Listing
February 2012
5 Reads

Intracorneal hematoma after canaloplasty in glaucoma.

Cornea 2011 Jun;30(6):718-9

Department of Ophthalmology, Azienda Ospedaliero-Universitaria Santa Maria della Misericordia, Udine, Italy.

Purpose: To report a case of an intracorneal hematoma after canaloplasty.

Methods: Interventional case report of a surgical method used to resolve an intracorneal hematoma complication after canaloplasty.

Results: A 45-year-old man with uncontrolled pigmentary open-angle glaucoma underwent canaloplasty for glaucoma in the left eye. Read More

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http://dx.doi.org/10.1097/ICO.0b013e3182000955DOI Listing
June 2011
2 Reads

Very high-frequency digital ultrasound evaluation of topography-wavefront-guided repair after radial keratotomy.

J Cataract Refract Surg 2011 Mar;37(3):599-602

London Vision Clinic, London, United Kingdom.

We report a topography-wavefront-guided repair procedure in a patient with a decentered optical zone and significant higher-order aberrations (HOAs) following radial keratotomy 14 years previously. The CRS-Master custom ablation software was used to generate a topography-wavefront-guided ablation profile based on Atlas front corneal surface topography data, and the MEL 80 excimer laser was used to treat the patient. Very high-frequency digital ultrasound scanning (Artemis) was performed before and after surgery to measure epithelial and stromal thickness changes to evaluate the anatomical congruity of the planned and achieved irregular ablation. Read More

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http://linkinghub.elsevier.com/retrieve/pii/S088633501001916
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http://dx.doi.org/10.1016/j.jcrs.2010.12.033DOI Listing
March 2011
9 Reads

Epithelial thickness up to 26 years after radial keratotomy: three-dimensional display with Artemis very high-frequency digital ultrasound.

J Refract Surg 2011 Aug 1;27(8):618-24. Epub 2011 Feb 1.

London Vision Clinic, London, UK.

Purpose: To characterize the epithelial thickness profile in a population of eyes after radial keratotomy for myopia.

Methods: The epithelial thickness profile was measured in vivo by Artemis very high-frequency digital ultrasound arc-scanning (ArcScan Inc) across the central 10-mm diameter of the cornea on 14 eyes after radial keratotomy for myopia. Maps of the mean and standard deviation of epithelial thickness were plotted and compared to the epithelial thickness of a previously published population of normal untreated eyes. Read More

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http://www.slackinc.com/doi/resolver.asp?doi=10.3928/1081597
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http://dx.doi.org/10.3928/1081597X-20110125-01DOI Listing
August 2011
5 Reads

Effects of femtosecond laser-assisted multilayer intrastromal ablation in the midperipheral cornea.

J Cataract Refract Surg 2010 Nov;36(11):1807-10

Shanghai Medical College, Fudan University, Shanghai, China.

We describe the femtosecond laser-assisted midperipheral multilayer intrastromal ablation technique, which combines the benefit of radial keratotomy, ie, not disturbing the optical zone, with currently available technology to correct myopia. The technique was performed in 2 patients, both of whom experienced a decrease in mean corneal power. In 1 patient, the manifest refraction improved, with a 1-line increase in uncorrected visual acuity 1 day postoperatively. Read More

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http://dx.doi.org/10.1016/j.jcrs.2010.07.002DOI Listing
November 2010
49 Reads

Simultaneous aspheric wavefront-guided transepithelial photorefractive keratectomy and phototherapeutic keratectomy to correct aberrations and refractive errors after corneal surgery.

J Cataract Refract Surg 2010 Jul;36(7):1173-80

From Sekal Rovigo Microsurgery Centre, Rovigo, Italy.

Purpose: To evaluate the results of combined aspheric wavefront-guided transepithelial excimer laser photorefractive keratectomy (PRK) and phototherapeutic keratectomy (PTK) to correct aberrations and refractive errors after radial keratotomy (RK) or keratoplasty.

Setting: Sekal Rovigo Microsurgery Centre, Rovigo, Italy.

Methods: This retrospective noncomparative consecutive case series comprised eyes having corneal wavefront-guided transepithelial PRK to correct aberrations followed by PTK (60 to 70 mum depth) without masking fluid. Read More

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http://dx.doi.org/10.1016/j.jcrs.2010.01.024DOI Listing
July 2010
10 Reads

Acute hydrops in keratectasia after radial keratotomy.

Eye Contact Lens 2010 May;36(3):185-7

Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.

A 28-year-old male who underwent uneventful radial keratotomy for myopic correction 8 years earlier presented with sudden decrease in vision in the right eye. Slitlamp examination revealed 16 healed radial corneal scars in both eyes along with marked corneal edema and conjunctival congestion in the right eye. The Scheimpflug cross-sectional image of the right cornea displayed an intrastromal aqueous cleft in communication with the anterior chamber, consistent with the diagnosis of acute hydrops. Read More

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http://content.wkhealth.com/linkback/openurl?sid=WKPTLP:land
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http://dx.doi.org/10.1097/ICL.0b013e3181da23baDOI Listing
May 2010
3 Reads

Pupil size and Scheimpflug Holladay equivalent keratometry readings.

Authors:
Sheridan Lam

J Cataract Refract Surg 2010 Jan;36(1):184; author reply 184

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http://linkinghub.elsevier.com/retrieve/pii/S088633500900900
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http://dx.doi.org/10.1016/j.jcrs.2009.08.017DOI Listing
January 2010
5 Reads

LASIK surgery in patients with residual refractive errors after radial keratotomy.

Int J Ophthalmol 2010 18;3(2):172-4. Epub 2010 Jun 18.

Department of Ophthalmology, Sadoughi Hospital, Yazd Medical Sciences University, Yazd, Iran.

Aim: To study the results and complications of LASIK surgery after radial keratotomy.

Methods: This descriptive study was carried out in Yazd LASIK Center, Yazd, Iran. Cases included all patients who had been operated between April 2003 and September 2006. Read More

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http://www.ijo.cn/gjyken/ch/reader/view_abstract.aspx?file_n
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http://dx.doi.org/10.3980/j.issn.2222-3959.2010.02.19DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3340776PMC
August 2012
5 Reads

Calculation of intraocular lens power using Orbscan II quantitative area topography after corneal refractive surgery.

J Refract Surg 2009 Dec;25(12):1061-74

Department of Ophthalmology, Paulista School of Medicine, Federal University of Sao Paulo, Brazil.

Purpose: To present the prospective application of the Orbscan II central 2-mm total-mean corneal power obtained by quantitative area topography in intraocular lens (IOL) calculation after refractive surgery.

Methods: Calculated and achieved refraction and the difference between them were studied in 77 eyes of 61 patients with previous radial keratotomy (RK), RK and additional surgeries, myopic LASIK, myopic photorefractive keratectomy (PRK), or hyperopic LASIK who underwent phacoemulsification without complications in 3 eye centers. All IOL calculations used the average from the central 2-mm Orbscan II total-mean power of maps centered on the pupil without the use of previous refractive data. Read More

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http://www.healio.com/doiresolver?doi=10.3928/1081597X-20091
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http://dx.doi.org/10.3928/1081597X-20091117-05DOI Listing
December 2009
7 Reads

Transient pseudophakic hyperopia after previous radial keratotomy.

Authors:
Robert H Osher

J Cataract Refract Surg 2009 Dec;35(12):2176; author reply 2176

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http://dx.doi.org/10.1016/j.jcrs.2009.10.013DOI Listing
December 2009
3 Reads

Corneal power measurements using scheimpflug imaging in eyes with prior corneal refractive surgery.

J Refract Surg 2009 Oct 12;25(10):862-8. Epub 2009 Oct 12.

Baylor College of Medicine, Houston, Texas, USA.

Purpose: To evaluate the accuracy of central corneal power measurements by Scheimpflug imaging (Pentacam) for eyes that had corneal refractive surgery.

Methods: This study comprised two groups: a pilot group of 100 eyes with prior hyperopic or myopic LASIK that did not have cataract surgery, and a test group of 41 eyes with prior radial keratotomy (RK) and cataract surgery. In the pilot group, Pentacam images and refraction were taken preoperatively and 3 months after LASIK. Read More

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http://dx.doi.org/10.3928/1081597X-20090917-07DOI Listing
October 2009
5 Reads

Severe hyperopic shift and irregular astigmatism after radial keratotomy.

Eye Contact Lens 2009 Nov;35(6):345-7

Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Japan.

Objectives: To report a case of acute high hyperopia occurring after radial keratotomy and evaluate the extent of corneal wavefront aberration with a Hartmann-Shack aberrometer.

Methods: A 45-year-old man had undergone bilateral radial keratotomy with four incisions for myopia 15 years earlier. The patient developed significant hyperopia and irregular corneal astigmatism in the left eye after the operation, reducing his best-corrected visual acuity. Read More

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http://dx.doi.org/10.1097/ICL.0b013e3181bece3dDOI Listing
November 2009
43 Reads

Arcuate keratotomy: an option for astigmatism correction after laser in situ keratomileusis.

Cornea 2009 Dec;28(10):1178-80

Department of Cornea, Massachusetts Eye and Ear Infirmary, Boston, 02114, USA.

Purpose: The purpose of this study was to report arcuate keratotomy (AK) as a treatment for post-laser in situ keratomileusis astigmatism arising from incorrect axis treatment.

Method: A 52-year-old woman presented with decreased vision in her left eye. Three months previously, the patient had undergone laser in situ keratomileusis in her left eye with incorrect axis treatment. Read More

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http://dx.doi.org/10.1097/ICO.0b013e31819db422DOI Listing
December 2009
3 Reads

Wavefront-guided photorefractive keratectomy in eyes with prior radial keratotomy: a multicenter study.

Ophthalmology 2009 Sep 29;116(9):1688-1696.e2. Epub 2009 Jul 29.

Department of Ophthalmology, Baylor College of Medicine, 6565 Fannin Street, Houston, TX 77030, USA.

Purpose: To investigate the outcomes of wavefront-guided photorefractive keratectomy (WG PRK) using prophylactic mitomycin C (MMC) in eyes that had previously undergone radial keratotomy (RK).

Design: Retrospective, observational, consecutive case series.

Participants: Thirty-two eyes of 27 patients with previous RK that underwent WG PRK with MMC. Read More

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http://dx.doi.org/10.1016/j.ophtha.2009.05.013DOI Listing
September 2009
7 Reads

Combined corneal topography and corneal wavefront data in the treatment of corneal irregularity and refractive error in LASIK or PRK using the Carl Zeiss Meditec MEL 80 and CRS-Master.

J Refract Surg 2009 Jun;25(6):503-15

London Vision Clinic, Department of Ophthalmology, St Thomas' Hospital - Kings College, London, United Kingdom.

Purpose: To assess the efficacy, safety, and accuracy of TOSCA II (Topography Supported Custom Ablation) treatments for the correction of high corneal aberrations and refractive error following previous ocular surgery.

Methods: Forty-eight eyes of 32 patients were included for study. Indications for TOSCA II treatment included small optical zone, decentered ablation, subjective visually significant higher order aberrations, and irregularly irregular astigmatism induced by LASIK, photorefractive keratectomy, radial keratotomy, conductive keratoplasty, cataract surgery, and deep lamellar keratoplasty. Read More

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June 2009
5 Reads

Accuracy of Scheimpflug Holladay equivalent keratometry readings after corneal refractive surgery.

J Cataract Refract Surg 2009 Jul;35(7):1198-203

Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, California 90095-7002, USA.

Purpose: To determine the accuracy of Pentacam Scheimpflug system Holladay equivalent keratometry (K) readings (EKRs) in calculating intraocular lens (IOL) power after corneal refractive surgery, including laser in situ keratomileusis (LASIK), photorefractive keratectomy (PRK), and radial keratotomy (RK).

Setting: Jules Stein Eye Institute, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA.

Methods: In this combined retrospective and prospective clinical study, patients who had cataract surgery after corneal refractive surgery were recalled to have Scheimpflug imaging of the operated cornea and Holladay EKR determination. Read More

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http://dx.doi.org/10.1016/j.jcrs.2009.02.030DOI Listing
July 2009
9 Reads

Wavefront-guided photorefractive keratectomy after radial keratotomy in nine eyes.

J Refract Surg 2009 May;25(5):470-2

The Wilmer Eye Institute, Baltimore, MD, USA.

Purpose: To investigate the refractive outcomes of wavefront-guided photorefractive keratectomy (PRK) in patients with previous radial keratotomy (RK).

Methods: This study is a retrospective review of consecutive cases from August 2004 until February 2007 of PRK after RK. The VISX STAR S4 excimer laser was used. Read More

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May 2009
22 Reads

Mitomycin C in photorefractive keratectomy.

J Refract Surg 2009 Jan;25(1 Suppl):S93-7

Gimbel Eye Centre, Edmonton, Alberta, Canada.

Purpose: To evaluate the outcome of primary or retreatment photorefractive keratectomy (PRK) or phototherapeutic keratectomy (PTK) with mitomycin C (MMC) 0.02% applied prophylactically intraoperatively for the prevention of haze and regression in cases of significant haze and regression after primary PRK, due to previous radial keratotomy (RK), in primary PRK eyes with high myopia, and in comeas with a previous superficial foreign body scar.

Methods: This was a retrospective evaluation of 34 eyes treated with PRK or PTK and intraoperative MMC. Read More

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January 2009
5 Reads

Implantation of collagen punctal plugs for the reduction of post-keratoplasty ametropia.

Authors:
D Baskin S Waller

Nepal J Ophthalmol 2009 Jan-Jun;1(1):72-4

Department of Ophthalmology Wilford Hall Medical Center San Antonio, Texas 78209, USA.

In 1995, a 46-year-old woman was referred for refractive surgery. Eleven years earlier, she had undergone an uncomplicated penetrating keratoplasty in her right eye to treat a dense corneal opacity caused by contact lens-related microbial keratitis. Due to high myopia in the graft, she was unable to achieve useful vision and declined contact lens use. Read More

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June 2011
7 Reads

[Long-term changes of corneal endothelial cells with radial keratotomy].

Zhonghua Yan Ke Za Zhi 2008 Jun;44(6):511-6

Department of Ophthalmology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China.

Objective: To investigate the long-term loss and variation of corneal endothelial cells after radial keratotomy.

Methods: By the way of case-control study, 51 myopia (101 eyes) patients who underwent RK in Beijing Friendship hospital, from January 1989 to December 1996 is the RK group. 51 myopia (102 eyes) outpatients who have no other eye diseases is the control group. Read More

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June 2008
3 Reads

Overview of laser refractive surgery.

Chang Gung Med J 2008 May-Jun;31(3):237-52

Department of Ophthalmology, Chang Gung Memorial Hospital, Taipei, Taiwan, ROC.

Since approval of the use of the excimer laser in 1995 to reshape the cornea, significant developments in the correction of refractive errors such as myopia, hyperopia, and astigmatism have been achieved. Combined with other advanced ophthalmological instruments (e.g. Read More

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October 2008
42 Reads

Current trends in advanced surface ablation.

Curr Opin Ophthalmol 2008 Jul;19(4):330-4

Center for Excellence in Eye Care, Baptist Medical Arts Building, Miami, Florida 33176, USA.

Purpose Of Review: Since their introduction in the mid-1990s, surface ablation techniques have continued to evolve, enabling surgeons to give patients better quality of vision with less postoperative pain. The purpose of this chapter is to discuss that evolution, the common techniques used today, and how to address potential complications.

Recent Findings: Advanced surface ablation techniques offer advantages over laser in situ keratomileusis, including expanded potential patient profiles, reduced haze and pain postoperatively, and increased quality of vision. Read More

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http://pdfs.journals.lww.com/co-ophthalmology/2008/07000/Cur
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http://dx.doi.org/10.1097/ICU.0b013e3283034210DOI Listing
July 2008
3 Reads

Early experience with implantable collamer lens in the management of hyperopia after radial keratotomy.

Cornea 2008 Apr;27(3):302-4

Herzig Eye Institute, Toronto, Canada.

Purpose: To report the initial experience of the use of implantable collamer lens (ICL) in the management of hyperopia after radial keratotomy (RK).

Methods: Single-center, retrospective chart review. Four eyes of 3 patients with secondary hyperopic shift after myopic RK had a mean spherical equivalent of 5. Read More

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http://dx.doi.org/10.1097/ICO.0b013e31815ea268DOI Listing
April 2008
14 Reads