804 results match your criteria Hyperopia LASIK


Femtosecond Intrastromal Lenticule Implantation (FILI) for Management of Moderate to High Hyperopia: 5-Year Outcomes.

J Refract Surg 2022 Jun 1;38(6):348-354. Epub 2022 Jun 1.

Purpose: To report the long-term clinical experience following femtosecond intrastromal lenticule implantation (FILI) for the management of moderate to high hyperopia.

Methods: Eligible patients who underwent FILI for moderate to high hyperopia from July 2013 to October 2020 were included. A donor small incision lenticule extraction lenticule, matched for refractive error, was implanted into the recipient's corneal pocket created using a femtosecond laser at 160 µm depth. Read More

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Comparison of clinical outcome of small-incision lenticule intrastromal keratoplasty and FS-LASIK for correction of moderate and high hyperopia.

Int J Ophthalmol 2022 18;15(5):780-785. Epub 2022 May 18.

Beijing Tongren Hospital Affiliated to Capital Medical University, Beijing Tongren Eye Center, Beijing Ophthalmology & Visual Science Key Lab, Beijing 100730, China.

Aim: To compare the clinical outcome of small-incision lenticule intrastromal keratoplasty (sLIKE) and femtosecond laser-assisted keratomileusis (FS-LASIK) for correction of moderate and high hyperopia.

Methods: A case-controlled clinical study was performed. Twenty right eyes of 20 moderate and high hyperopia patients underwent sLIKE (sLIKE group) and 22 right eyes of 22 moderate and high hyperopia patients underwent FS-LASIK (FS-LASIK group) were enrolled in this study from October 2015 to October 2017. Read More

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Visual and Refractive Outcomes Following Laser Blended Vision With Non-linear Aspheric Micro-anisometropia (PRESBYOND) in Myopic and Hyperopic Patients.

J Refract Surg 2022 May 1;38(5):288-297. Epub 2022 May 1.

Purpose: To report 6-month visual and refractive outcomes following PRESBYOND Laser Blended Vision (Carl Zeiss Meditec) treatment using non-linear aspheric micro-anisometropia laser in situ keratomileusis (LASIK) for the correction of myopic and hyperopic presbyopia.

Methods: A retrospective, non-comparative study of 139 consecutive patients with a mean age of 53.13 ± 5. Read More

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Intraoperative aberrometry compared to preoperative Barrett True-K formula for intraocular lens power selection in eyes with prior refractive surgery.

Sci Rep 2022 05 5;12(1):7357. Epub 2022 May 5.

Loma Linda University Eye Institute, 11370 Anderson Street, Suite 1800, Loma Linda, CA, 92354, USA.

To compare the predictive refractive accuracy of intraoperative aberrometry (ORA) to the preoperative Barrett True-K formula in the calculation of intraocular lens (IOL) power in eyes with prior refractive surgery undergoing cataract surgery at the Loma Linda University Eye Institute, Loma Linda, California, USA. We conducted a retrospective chart review of patients with a history of post-myopic or hyperopic LASIK/PRK who underwent uncomplicated cataract surgery between October 2016 and March 2020. Pre-operative measurements were performed utilizing the Barrett True-K formula. Read More

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Central Toxic Keratopathy in Siblings After Laser-Assisted Keratomileusis: Case Report and Literature Review.

Cornea 2022 May;41(5):640-643

NVISION Eye Centers, Rowland Heights, CA.

Purpose: The purpose of this study was to report an isolated case of 2 siblings who developed central toxic keratopathy (CTK) after undergoing laser-assisted keratomileusis (LASIK) on the same day.

Methods: This was a case report and literature review.

Results: Two sisters with no significant medical history underwent uncomplicated LASIK on the same day. Read More

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Comparison of Optical Zone Decentration Following FS-LIKE and SMI-LIKE for Correcting Hyperopia.

J Refract Surg 2022 Mar 1;38(3):184-190. Epub 2022 Mar 1.

Purpose: To investigate optical zone decentration following femtosecond laser-assisted lenticule intrastromal keratoplasty (FS-LIKE) or small incision lenticule intrastromal keratoplasty (SMI-LIKE) for correcting hyperopia.

Methods: This study analyzed decentration values obtained from optical coherence tomography (OCT) and tangential topography difference maps of 23 eyes (18 patients) undergoing FS-LIKE (n = 12) or SMI-LIKE (n = 11) via the concentric centration method. Total higher order aberrations (HOAs) and component aberrations were measured preoperatively and 6 months postoperatively. Read More

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Hemidivisional vector planning to reduce and regularize irregular astigmatism by laser treatment.

Graefes Arch Clin Exp Ophthalmol 2022 Mar 9. Epub 2022 Mar 9.

NewVision Clinics, Melbourne, Australia.

Purpose: To demonstrate how hemidivisional vector planning of refractive laser treatments of astigmatism can be used to directly address idiopathic corneal irregular astigmatism that has an asymmetrical, non-orthogonal bow tie topography appearance.

Design: Case study.

Methods: The cornea is conceptually divided into two hemidivisions along the flat meridian of the corneal topographic astigmatism (CorT), which means that each hemidivision will approximately correspond to one lobe of the asymmetric, non-orthogonal topographic bow tie. Read More

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Refractive surgery for older children and adults with accommodative esotropia: a systematic review.

Ophthalmic Res 2022 Feb 28. Epub 2022 Feb 28.

Introduction: Accommodative esotropia (AET) is characterized by an esodeviation of the eyes due to uncorrected hyperopia, deficient fusional divergence, or high accommodative convergence. Decreasing hyperopia would reduce accommodative convergence and strabismus. We sought to review the existing evidence regarding the outcomes of refractive surgery in patients with AET. Read More

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February 2022

Laser corneal enhancement after trifocal intraocular lens implantation in eyes that previously had photoablative corneal refractive surgery.

J Cataract Refract Surg 2022 07;48(7):790-798

From the Clinica Baviera-AIER Eye Group, Valencia, Spain (Mayordomo-Cerdá, Llovet-Osuna); Clinica Baviera-AIER Eye Group, Bilbao, Spain (Ortega-Usobiaga); Clinica Baviera-AIER Eye Group, Madrid, Spain (Bilbao-Calabuig, González-López, Llovet-Osuna, Cobo-Soriano); Clinica Baviera-AIER Eye Group, Burgos, Spain (Fernández-García); Cardenal Herrera-CEU University, College of Medicine, Valencia, Spain (Llovet-Osuna); Universidad Francisco de Vitoria, Madrid, Spain (Cobo-Soriano).

Purpose: To evaluate the visual and refractive outcomes of laser corneal enhancement after trifocal intraocular lens (IOL) implantation in eyes previously treated with myopic/hyperopic laser corneal refractive surgery (LCRS).

Setting: Clinica Baviera-AIER-Eye Group, Spain.

Design: Retrospective comparative case series. Read More

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Public Interest in Refractive Diseases and Treatments During the COVID-19 Pandemic: A Google Trends Analysis.

Cureus 2021 Aug 15;13(8):e17207. Epub 2021 Aug 15.

Ophthalmology, George Washington University School of Medicine and Health Sciences, Washington DC, USA.

Purpose To assess national internet search trends/public interest in refractive diseases and treatments during the first year of the COVID-19 pandemic. Methods A Google Trends search for refractive terms was performed during the first year of the COVID-19 pandemic. Refractive terms were divided into disease and treatment terms. Read More

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Prediction model of free flaps in microkeratome-assisted LASIK.

PLoS One 2021 1;16(9):e0255525. Epub 2021 Sep 1.

Department of Ophthalmology, University Hospital Hamburg Eppendorf, Hamburg, Germany.

Purpose: To identify mechanical factors, as well as patients' biometric and surgeons' experience factors that correlate with the FF incidence in microkeratome (MK)-assisted LASIK and to construct a predictive model based on these parameters.

Methods: 55,700 consecutive LASIK treatments of 28,506 patients between January 2017 and April 2020 done by 50 surgeons in 10 centers, all with Sub Bowman Keratome (SBK) and 90μ head (OUP) were analyzed retrospectively for the incidence of FF and their correlation to mean keratometry, central corneal thickness, MK ring height and stop, as well as surgeons' experience. A prediction model was built and tested for sensitivity and specificity. Read More

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November 2021

[Regression and ablation profiles in corneal refractive surgery].

J Fr Ophtalmol 2021 Sep 17;44(7):1059-1075. Epub 2021 Jun 17.

CHNO des Quinze-Vingts, IHU Foresight, INSERM-DGOS CIC 1423, 28, rue de Charenton, 75012 Paris, France; Inserm, CNRS, Sorbonne Université, institut de la Vision, 17, rue Moreau, 75012 Paris, France. Electronic address:

Regression after corneal refractive surgery is a complex phenomenon which seems inevitable. The choice of surgical technique has very little influence on regression for low myopia or myopic astigmatism. However, LASIK and SMILE are the two techniques of choice in the correction of high myopia. Read More

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September 2021

Case Series: Application of Topography-guided Contoura Refractive Surgery in Highly Irregular Cornea.

Optom Vis Sci 2021 06;98(6):557-562

Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Shandong, China.

Significance: Highly irregular cornea leads to poor vision, glare, and starbursts. Although treatment is still at the exploration stage, topography-guided Contoura surgery has excellent potential for the treatment of highly irregular corneas.

Purpose: This case series reviews three patients (one with abnormal back elevation, one with corneal scar after fungal keratitis, and one with post-laser-assisted in situ keratomileusis central islands) treated with topography-guided Contoura surgery. Read More

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Comparison of Visual Outcome After Hyperopic LASIK Using a Wavefront-Optimized Platform Versus Other Excimer Lasers in the Past Two Decades.

Ophthalmol Ther 2021 Sep 19;10(3):547-563. Epub 2021 May 19.

Hoopes Vision Research Center, Draper, UT, USA.

Introduction: Laser-assisted in-situ keratomileusis (LASIK) for the correction of hyperopia and hyperopic astigmatism is challenging and has been less studied than for the correction of myopia and myopic astigmatism. The aim of this study was to analyze the refractive outcomes of LASIK in hyperopia and hyperopic astigmatic eyes using a wave-front optimized laser platform (the Allegretto EX500 laser) and perform a historical comparison with other excimer lasers within the past two decades.

Methods: A one-center (Tertiary Refractive Center, Draper, Utah), retrospective, non-comparative study was conducted on 379 eyes treated with LASIK for hyperopia and hyperopic astigmatism. Read More

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September 2021

Vision Restoration: Cataract Surgery and Surgical Correction of Myopia, Hyperopia, and Presbyopia.

Med Clin North Am 2021 May 2;105(3):445-454. Epub 2021 Apr 2.

McKnight Vision Research Center, Bascom Palmer Eye Institute, University of Miami-Miller School of Medicine, 900 Northwest 17th Street, Miami, FL 33136, USA.

Cataract surgery is one of the most common surgical procedures performed in the United States. The decision to remove a cataract is determined by the patient's ability to perform activities of daily living, such as reading, driving, and watching television. Cataract surgery also offers the potential of spectacle independence with a wide array of premium intraocular lens options. Read More

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Simulated biomechanical effect of aspheric transition zone ablation profiles after conventional hyperopia refractive surgery.

Math Biosci Eng 2021 03;18(3):2442-2454

Key Laboratory of Nondestructive Test (Ministry of Education), Nanchang Hangkong University, Nanchang 330063, China.

We studied the effects of the aspheric transition zone on the optical wavefront aberrations, corneal surface displacement, and stress induced by the biomechanical properties of the cornea after conventional laser in situ keratomileusis (LASIK) refractive surgery. The findings in this study can help improve visual quality after refractive surgery. Hyperopia correction in 1-5D was simulated using five types of aspheric transition zones with finite element modeling. Read More

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Assessment of Refractive Outcomes of Femtosecond-assisted Laser in Situ Keratomileusis (LASIK) for Hyperopia.

J Coll Physicians Surg Pak 2021 Apr;30(4):434-439

Department of Refractive Surgery, Armed Forces Institute of Ophthalmology, Rawalpindi, Pakistan.

Objective: To determine the effect of refractive treatment in terms of safety, efficacy, stability, accuracy, and predictability with Wavefront Optimized Laser-assisted in situ keratomileusis (LASIK) on hyperopia.

Study Design: Descriptive, analytical study.

Place And Duration Of Study: Armed Forces Institute of Ophthalmology, National University of Medical Sciences, Rawalpindi, Pakistan from August 2013 to June 2018. Read More

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[Refractive surgery for hyperopia].

J Fr Ophtalmol 2021 May 6;44(5):723-729. Epub 2021 Apr 6.

Service d'ophtalmologie, Hôpital d'instruction des Armées Percy, 101, avenue Henri-Barbusse, BP 406, 92141 Clamart cedex, France; École du Val-de-Grâce, 1, place Alphonse-Laveran, 75230 Paris cedex 05, France.

Hyperopia is a refractive error in which light is focused behind, instead of on, the retina. Clear vision can be obtained by accommodation, but in the long run, this results in eye strain. Hyperopia can be classified as low [≤2. Read More

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The 25th Anniversary of Laser Vision Correction in the United States.

Authors:
Stephen N Joffe

Clin Ophthalmol 2021 17;15:1163-1172. Epub 2021 Mar 17.

History of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA.

Laser Vision Correction (LVC) is an elective, self-pay and safe surgical procedure to correct myopia and hyperopia. Since FDA approval 25 years ago, there have been a progression of technological improvements leading to better outcomes and LVC is now one of the safest surgical procedures. With a potential pool of 50 million patients, 6000 trained ophthalmic surgeons regularly treating in over 1000 centers of which 65% are physician owned. Read More

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Femtosecond-LASIK outcomes using the VisuMax-MEL 80 platform for hyperopia and hyperopic astigmatism refractive surgery.

Exp Ther Med 2021 Mar 26;21(3):288. Epub 2021 Jan 26.

Department of Ophthalmology, Faculty of Medicine, 'Lucian Blaga' University, 550159 Sibiu, Romania.

The present study evaluated the efficacy, the safety and the predictability of the Femtosecond laser-assisted keratomileusis (Femto-LASIK) procedure for hyperopia and hyperopic astigmatism. We retrospectively analyzed the postoperative 12-month evolution of 593 eyes with hyperopia and hyperopic astigmatism that underwent Femto-LASIK treatment. The procedure was predictable and effective. Read More

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Sterile Excimer Laser Shaped Allograft Corneal Inlay for Hyperopia: One-year Clinical Results in 28 Eyes.

Curr Eye Res 2021 05 18;46(5):630-637. Epub 2021 Feb 18.

Faculty of Medicine, Ophthalmology Department, Medipol University, Istanbul, Turkey.

: This study aimed to evaluate the one-year clinical results of an allograft corneal inlay (ACI) implantation in a case series of 28 hyperopic eyes of 16 patients.: Patients with manifest refraction spherical equivalent (MRSE) between +1.00 and +6. Read More

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Impact of Refractive Outcomes on Bias in Follow-up and Completion of Patient-Reported Outcome Measures after Laser Vision Correction.

Ophthalmology 2021 09 2;128(9):1284-1291. Epub 2021 Feb 2.

Optical Express, United Kingdom, Glasgow, United Kingdom.

Purpose: To examine factors contributing to completion of a patient-reported outcome (PRO) measure in patients undergoing laser vision correction.

Design: Retrospective, population-based study.

Participants: All patients who underwent primary laser vision correction with a target of plano from July 1, 2014, to June 30, 2016, at a large refractive surgery center. Read More

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September 2021

Clinical Effectiveness of Laser-Induced Increased Depth of Field for the Simultaneous Correction of Hyperopia and Presbyopia.

J Refract Surg 2021 Jan;37(1):16-24

Purpose: To evaluate the visual outcomes of patients with presbyopic hyperopia, comparing the current standard of monovision treatment with a novel bilateral presbyopic LASIK (Custom-Q mode) technique.

Methods: This prospective comparative study of consecutive eligible patients with presbyopic hyperopia undergoing a bilateral presbyopic laser in situ keratomileusis technique was conducted between January 2018 and February 2019. After contact lens-simulated monovision measurements were obtained, the non-dominant eyes had a negative aspheric ablation profile planned using the Custom-Q nomogram (Alcon Laboratories, Inc). Read More

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January 2021

Wavefront excimer laser refractive surgery for adults with refractive errors.

Cochrane Database Syst Rev 2020 12 18;12:CD012687. Epub 2020 Dec 18.

Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Denver, Colorado, USA.

Background: Refractive errors (conditions in which the eye fails to focus objects accurately on the retina due to defects in the refractive system), are the most common cause of visual impairment. Myopia, hyperopia, and astigmatism are low-order aberrations, usually corrected with spectacles, contact lenses, or conventional refractive surgery. Higher-order aberrations (HOAs) can be quantified with wavefront aberration instruments and corrected using wavefront-guided or wavefront-optimized laser surgery. Read More

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December 2020

PresbyPRK vs presbyLASIK using the SUPRACOR algorithm and micromonovision in presbyopic hyperopic patients: visual and refractive results at 12 months.

J Cataract Refract Surg 2021 Jul;47(7):878-885

From the Ophthalmology Department, Amiens University Hospital Center, Amiens, France (William, Benjamin); Laser Victor Hugo Center, Paris, France (Alain, Mikhael); Ophthalmology Department, King AbdulAziz University, Jeddah, Saudi Arabia (Hussein); Agence de la Biomedecine, Saint-Denis, France (Elias); Ophthalmology Department, Percy Military Hospital, Clamart, France (Françoise, Maxime, Mikhael).

Purpose: To compare the visual outcome and refractive results between presbyopic photorefractive keratectomy (presbyPRK) and presbyopic laser in situ keratomileusis (presbyLASIK) in presbyopic hyperopic patients using micromonovision and the SUPRACOR algorithm.

Setting: Percy Military Hospital and private Laser Victor Hugo Center, France.

Design: Observational retrospective nonrandomized. Read More

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December consultation #3.

Authors:
Vandana Jain

J Cataract Refract Surg 2020 12;46(12):1686-1687

Mumbai, India.

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December 2020

December consultation #2.

J Cataract Refract Surg 2020 12;46(12):1685-1686

Mexico City, Mexico.

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December 2020

Presbyopic patient with hyperopia and moderately steep corneas: December consultation #1.

Authors:

J Cataract Refract Surg 2020 12;46(12):1685

A 47-year-old woman was referred for refractive surgery evaluation. She has no ocular or medical history. Spectacle dependence is her chief concern. Read More

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December 2020

Reference Values of the Central Corneal Thickness with Different Refractive Errors for the Adult Egyptian Population.

Authors:
Amr A Gab-Alla

Clin Ophthalmol 2020 22;14:3465-3474. Epub 2020 Oct 22.

Suez Canal University, Faculty of Medicine, Ophthalmology Department, Ismailia, Egypt.

Aim: To generate reference values of the central corneal thickness (CCT) with different refractive errors for the adult eastern Egyptian population.

Subjects And Methods: This study was a retrospective, observational, and cross-sectional study. It included 1166 eyes (1166 subjects) scheduled for LASIK, who came to private refractive eye centre, Ismailia, Egypt. Read More

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October 2020

Manufacture of Contact Lens of Nanoparticle-Doped Polymer Complemented with ZEMAX.

Nanomaterials (Basel) 2020 Oct 15;10(10). Epub 2020 Oct 15.

Department of Chemical & Process Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.

Many people suffer from myopia or hyperopia due to the refractive errors of the cornea all over the world. The use of high refractive index (RI), Abbe number (), and visible light transmittance (T%) polymeric contact lenses (CLs) holds great promise in vision error treatment as an alternative solution to the irreversible laser-assisted in situ keratomileusis (LASIK) surgery. Titanium dioxide nanoparticles (TiO NPs) have been suggested as a good candidate to rise the RI and maintain high transparency of a poly(methyl methacrylate) (PMMA)-TiO nanocomposite. Read More

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October 2020