218 results match your criteria Journal of Optometry [Journal]


Uncontrolled experimentation is not an option for open minds: Ethical research is the answer.

Authors:
David P Piñero

J Optom 2019 Apr - Jun;12(2):69-70

Department of Optics, Pharmacology and Anatomy, University of Alicante, Alicante, Spain; Department of Ophthalmology, Vithas Medimar International Hospital, Alicante, Spain. Electronic address:

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2019.02.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449770PMC

Presbyopic correction use and its impact on quality of vision symptoms.

J Optom 2019 Mar 29. Epub 2019 Mar 29.

Ophthalmic Research Group, Aston University, Birmingham, UK. Electronic address:

Aim: To assess real-world adoption of presbyopic correction and its impact on quality of vision.

Method: The use of visual corrections by 529 sequential patients (aged 36 years to 85 years, 50.4% female) attending 4 optometric practices in diverse areas across London were surveyed by interview and completed the quality of vision (QoV) questionnaire to evaluate visual symptoms. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S18884296193000
Publisher Site
http://dx.doi.org/10.1016/j.optom.2018.12.004DOI Listing
March 2019
6 Reads

Effect of age on visual and refractive results after laser-assisted subepithelial keratomileusis (LASEK) with adjuvant use of mitomycin C.

J Optom 2019 Apr - Jun;12(2):92-98. Epub 2019 Mar 18.

Clínica Novovisión Madrid, Madrid, Spain; Hospital Universitario "Príncipe de Asturias", University of Alcalá, Alcalá de Henares, Madrid, Spain.

Purpose: To evaluate the influence of age on visual and refractive results after laser-assisted subepithelial keratomileusis (LASEK) with the adjuvant use of mitomycin C (MMC) for the correction of myopia.

Methods: Retrospective, nonrandomized, cohort study. A total of 1374 eyes treated with LASEK+MMC were included in the study (we compared 1163 eyes of patients aged 18 to 40 years versus 211 eyes of patients over 40 years). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2019.01.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449780PMC
March 2019
2 Reads

Keratometry in children: Comparison between auto-refractokeratometer, rotating scheimpflug imaging, and biograph.

J Optom 2019 Apr - Jun;12(2):99-110. Epub 2019 Mar 14.

Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.

Purpose: To determine the agreement and validity of keratometric measurements in children with the Nidek ARK-510A auto-refractokeratometer compared to rotating Scheimpflug imaging with Pentacam and biograph with Lenstar LS 900.

Methods: This study was conducted on 5620 schoolchildren aged 6-12 years in Shahroud, Iran. Minimum and maximum keratometry values and corneal astigmatism magnitude were compared by calculation of Paired difference, interclass correlation coefficient, and 95% limits of agreement (LoA) between devices. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.12.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449769PMC

Peripheral refraction and spherical aberration profiles with single vision, bifocal and multifocal soft contact lenses.

J Optom 2019 Feb 13. Epub 2019 Feb 13.

Brien Holden Vision Institute, Sydney, NSW, Australia; School of Optometry and Vision Sciences, UNSW, Sydney, NSW, Australia. Electronic address:

Purpose: To compare the peripheral refraction and spherical aberration profiles along three visual field meridians of 16 commercial single vision (SV), bifocal (BF) and multifocal (MF) test contact lenses with a single vision control.

Method: Forty-four participants [24.2±2. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.11.002DOI Listing
February 2019

Long term outcomes of strabismus surgery for third nerve palsy.

J Optom 2018 Dec 29. Epub 2018 Dec 29.

Hospital General Universitario Gregorio Marañón, Madrid, Spain; Ocular Motility Section, Department of Ophthalmology, Hospital Gregorio Marañón, Madrid, Spain.

Purpose: To report long-term outcomes of strabismus surgery for treatment of third nerve palsy.

Methods: We performed a 15-year retrospective study of patients who had undergone surgery. We analyzed preoperative mean deviation (at 6 months, 1 year after surgery, and at the end of follow-up), type of surgery, and factors predicting outcomes. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.10.004DOI Listing
December 2018
2 Reads

How frequently should asymptomatic patients be dilated? 20-year results.

Authors:
Paul Varner

J Optom 2018 Nov 2. Epub 2018 Nov 2.

John J Pershing Veterans Affairs Medical Center, Poplar Bluff, MO, USA. Electronic address:

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.10.001DOI Listing
November 2018

In vivo assessment of the anterior scleral contour assisted by automatic profilometry and changes in conjunctival shape after miniscleral contact lens fitting.

J Optom 2019 Apr - Jun;12(2):131-140. Epub 2018 Nov 2.

Clinical & Experimental Optometry Research Lab (CEORLab), Center of Physics, University of Minho, Braga, Portugal.

Purpose: To compare the shape of the anterior sclera of candidates to scleral lens (ScCL) fitting with regular and irregular corneas and analyze the changes induced in the shape of the sclero-conjunctiva after ScCL wear.

Methods: Thirty-five eyes of 18 subjects (19 eyes with irregular corneas and 16 with regular corneas) were consecutively recruited. Three measures of sclero-conjunctival shape were taken with Eye Surface Profiler (ESP, Eaglet Eye, Houten, The Netherlands). Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S18884296183008
Publisher Site
http://dx.doi.org/10.1016/j.optom.2018.10.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449784PMC
November 2018
15 Reads

Characterization of optical performance with defocusing curve: Analysis of two refractive intraocular lens models with high and medium addition.

J Optom 2018 Oct 31. Epub 2018 Oct 31.

Universidad Europea de Madrid, Madrid, Spain.

Purpose: To characterize the optical performance of two models of refractive bifocal intraocular lenses, with medium and high addition, using defocus curves.

Methods: 20 eyes from 20 subjects were included in this study. 10 eyes underwent caratact surgery with an implant of a medium addition refractive bifocal intraocular lens (IOL) (Lentis LS-313 MF20) and the other 10 eyes underwent cataract surgery with an implant of a high addition refractive bifocal IOL (Lentis LS-313 MF30). Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S18884296183008
Publisher Site
http://dx.doi.org/10.1016/j.optom.2018.10.003DOI Listing
October 2018
16 Reads

Clinical evaluation of an automated subjective refraction method implemented in a computer-controlled motorized phoropter.

J Optom 2019 Apr - Jun;12(2):74-83. Epub 2018 Oct 30.

Center for Sensors, Instruments and Systems Development, Universitat Politècnica de Catalunya, Terrassa, Spain.

Purpose: To investigate a new algorithm to perform an automated non-cycloplegic refraction in adults.

Methods: Fifty healthy subjects were measured twice (test-retest) with the new automated subjective refraction method and with the conventional clinician subjective refraction procedure. Objective refraction was also measured with the Grand Seiko WAM-5500 autorefractor. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.09.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449872PMC
October 2018
24 Reads

Retinal glial changes in Alzheimer's disease - A review.

J Optom 2018 Oct 27. Epub 2018 Oct 27.

Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Universidad Complutense de Madrid, Spain; Facultad de Óptica y Optometría, Departamento de Inmunología, Oftalmología y ORL, Universidad Complutense de Madrid, Spain. Electronic address:

Alzheimer's disease (AD) is a neurodegenerative dementia characterized by the deposition of extracellular β-amyloid (Aβ) plaques and the presence of neurofibrillary tangles. Until now, the techniques used to analyze these deposits have been difficult to access, invasive, and expensive. This leads us to consider new access routes to the central nervous system (CNS), allowing us to diagnose the disease before the first symptoms appear. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.07.001DOI Listing
October 2018
4 Reads

Comparison of macular retinal sensitivity and its contribution to the foveal sensitivity between diabetic and non-diabetic patients with normal visual acuity.

J Optom 2018 Oct 28. Epub 2018 Oct 28.

Ophthalmology, Hospital Juarez de Mexico, Mexico. Electronic address:

Purpose: To compare the retinal sensitivity and evaluate its contribution to the foveal sensitivity in patients with and without diabetes who maintain normal visual acuity.

Methods: Observational, descriptive, cross-sectional and prospective study in 20 subjects without diabetes (group 1) and 23 with type 2 diabetes mellitus (group 2) that had no ocular abnormalities. Retinal sensitivity was measured with the macular threshold test by the Humphrey's computerized perimeter. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S18884296183008
Publisher Site
http://dx.doi.org/10.1016/j.optom.2018.08.001DOI Listing
October 2018
4 Reads

An Eyelid Warming Device for the Management of Meibomian Gland Dysfunction.

J Optom 2019 Apr - Jun;12(2):120-130. Epub 2018 Oct 16.

Centre for Ocular Research & Education (CORE), University of Waterloo School of Optometry & Vision Science, Cananda. Electronic address:

Purpose: To determine the effectiveness of the MGDRx EyeBag in managing meibomian gland dysfunction.

Methods: This was a prospective, randomized, controlled, observer-masked, bilateral eye study that enrolled 29 participants. Participants were randomized into either the EyeBag group or the control group. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S18884296183008
Publisher Site
http://dx.doi.org/10.1016/j.optom.2018.07.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449779PMC
October 2018
13 Reads

Milestones in the development of Spanish optometry.

J Optom 2018 Jul - Sep;11(3):133-134

Universidad Europea de Madrid, Faculty of Biomedical and Health Sciences, Department of Pharmacy, Biotechnology, Nutrition, Optics and Optometry, Spain. Electronic address:

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S18884296183004
Publisher Site
http://dx.doi.org/10.1016/j.optom.2018.06.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039610PMC
October 2018
2 Reads

Pharmacology without drugs.

Authors:
Jesús Pintor

J Optom 2018 Oct - Dec;11(4):201-202. Epub 2018 Aug 1.

Dep. Biochemistry, Fac. Optometry, Universidad Complutense de Madrid, C/ Arcos de Jalon 118, 28037 Madrid, Spain. Electronic address:

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.06.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6148081PMC
August 2018
3 Reads

High-speed recording of thermal load during laser trans-epithelial corneal refractive surgery using a 750Hz ablation system.

J Optom 2019 Apr - Jun;12(2):84-91. Epub 2018 Jul 20.

SCHWIND eye-tech-solutions, Kleinostheim, Germany.

Purpose: To evaluate the temperature rise of human cornea during trans-epithelial photorefractive keratectomy (trans-PRK) with a 750Hz excimer laser employing Intelligent Thermal Effect Control (ITEC) software.

Methods: In this observational case series, trans-PRK ablation was performed on 5 eyes of 3 patients using an aspheric profile of a 750Hz excimer laser system. A high-resolution infrared camera with a frame-rate of 350 images per second was used to determine the corneal surface temperature. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.05.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449765PMC
July 2018
2 Reads

Customary practices in the monitoring of dry eye disease in Sjogren's syndrome.

J Optom 2018 Oct - Dec;11(4):232-241. Epub 2018 Jul 17.

Centre for Contact Lens Research, School of Optometry& Vision Science University of Waterloo, 200 University Avenue West, Waterloo, ON, Canada.

Purpose: Diagnostic testing for dry eye disease (DED) in Sjogren's syndrome (SS) is well described. Little is published about monitoring this systemic autoimmune DED. We analyzed the SS related DED tests used in North American optometric practices and compared academic settings to private practice settings. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.05.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147754PMC
October 2018
9 Reads

The eyelash follicle features and anomalies: A review.

J Optom 2018 Oct - Dec;11(4):211-222. Epub 2018 Jul 17.

École d'optométrie, Université de Montréal, 3744 Rue Jean-Brillant, Montréal, Québec, Canada H3T 1P1.

The primary role of eyelashes is to protect and maintain the health of the lid margin. However, the mechanisms to fulfill this role are not fully understood. Unraveling these mechanisms will stand to greatly improve the efficiency of eye care professionals' interventions in anomalies of the eyelashes. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.05.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147748PMC
October 2018
22 Reads

Normative values for clinical measures used to classify accommodative and vergence anomalies in a sample of high school children in South Africa.

J Optom 2018 Jun 7. Epub 2018 Jun 7.

Discipline of Optometry, School of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa. Electronic address:

Aim: To determine normative values for stereoacuity, accommodative and vergence measures for high school populations.

Methods: Using a multi-stage random cluster sampling, 1211 children (481 males and 730 females) between 13 and 18 years of age, with a median age of 16 years, were selected. Visual acuity, stereoacuity and suppression, refractive errors, near point of convergence, heterophoria and fusional vergences, as well as, amplitude of accommodation, accommodative response, facility and relative accommodation were evaluated. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.03.005DOI Listing
June 2018
1 Read

HbA1c and retinal sensitivity in diabetics using microperimetry.

J Optom 2018 May 26. Epub 2018 May 26.

Hospital Shah Alam, Department of Ophthalmology, Persiaran Kayangan, Section 7, 40000 Shah Alam, Selangor, Malaysia.

Purpose: The purpose of this study was to determine the relationship between HbA1c values and retinal sensitivity at central 10° using the MP-1 microperimeter.

Methods: A prospective study was carried out on 32 healthy subjects (control group) and 60 diabetic patients. The diabetic patients were divided into 2 groups. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.03.007DOI Listing
May 2018
3 Reads

Accommodative insufficiency in a student population in Iran.

J Optom 2018 May 22. Epub 2018 May 22.

Department of Optometry, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran. Electronic address:

Purpose: To determine the prevalence of accommodative insufficiency (AI) and its relation with age, gender, and refractive errors in a college-age student population in Iran.

Methods: The present study was conducted cross-sectionally in 2017. All students had optometric tests including measurement of visual acuity, objective and subjective refraction, as well as binocular vision and accommodative examinations. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.03.006DOI Listing
May 2018
6 Reads

Immediate effect of a tear enhancer and meibomian gland expression on the corneal surface and whole eye higher order aberrations.

J Optom 2018 Oct - Dec;11(4):223-231. Epub 2018 Apr 24.

NHS National Services Scotland, Edinburgh, UK & Svjetlost University Eye Hospital, Zagreb, Croatia.

Purpose: To investigate changes in higher order ocular aberrations (HOA) induced by the administration of 0.15% sodium hyaluronate tear enhancer (TE) and meibomian gland expression (ME) on the tear film of normal subjects.

Methods: HOA values were obtained from the corneal surface (CS) and whole eye (WE), using a corneal topographer and Shack-Hartmann aberrometer, from both eyes of 50 subjects (25 females, mean age±sd 32. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.01.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147757PMC
October 2018
3 Reads

Expanding the traditional role of optometry: Current practice patterns and attitudes to enhanced glaucoma services in Ireland.

J Optom 2018 Oct - Dec;11(4):252-261. Epub 2018 Apr 9.

Dublin Institute of Technology, 19A Lower Kevin Street, Dublin 8, Ireland; DIT Centre for Eye Research Ireland, Environmental Sustainability and Health Institute, Dublin, Ireland; African Vision Research Institute, University of KwaZulu Natal, South Africa.

Purpose: To investigate current diagnostic equipment availability and usage for glaucoma case-finding within community optometric practice, and to explore optometrists' attitudes towards an enhanced scope of clinical practice.

Methods: An anonymous survey was developed, validated, and distributed to all optometrists in Ireland.

Results: 199 optometrists (27% of registrants) responded to the survey. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S18884296183002
Publisher Site
http://dx.doi.org/10.1016/j.optom.2018.02.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147747PMC
October 2018
3 Reads

Effect of age in the ciliary muscle during accommodation: Sectorial analysis.

J Optom 2019 Jan - Mar;12(1):14-21. Epub 2018 Apr 4.

Department of Optics and Optometry and Vision Sciences, University of Valencia, Spain.

Purpose: To compare changes in the ciliary muscle area at different sectors between pre-presbyopic and presbyopic eyes during accommodation by means of an anterior segment optical coherence tomographer (OCT).

Methods: The anterior ciliary muscle area was measured in 20 healthy and phakic pre-presbyopic eyes, whose mean age was 23.3±4. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.01.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318550PMC
January 2019
3 Reads

Influence of contrast polarity on the accommodative response.

J Optom 2019 Jan - Mar;12(1):38-43. Epub 2018 Apr 4.

Department of Optics and Optometry and Visual Sciences, University of Valencia, 46100 Burjassot, Spain; Interuniversity Laboratory for Research in Vision and Optometry, Mixed Group UVEG-UMU, Spain.

Purpose: To assess the changes in the accommodative response of the eye while reading a text under different contrast polarity conditions: black letters on white background (BoW condition) and white letters on black background (WoB condition).

Methods: Eighteen subjects with ages ranging from 21 to 41 years participated in this experimental study. The accommodative response (AR) of the eye while reading a text with BoW or WoB contrast polarity was obtained objectively with an adaptive optics system that corrected all aberrations but subject's own. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.03.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318541PMC
January 2019
2 Reads

Avoiding misinterpretations of Kappa angle for clinical research studies with Pentacam.

J Optom 2019 Apr - Jun;12(2):71-73. Epub 2018 Apr 4.

Department of Ophthalmology (Qvision), Vithas Virgen del Mar Hospital, 04120 Almería, Spain; Department of Ophthalmology, Torrecárdenas Hospital Complex, 04009 Almería, Spain.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.03.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6450808PMC
April 2018
3 Reads

Effect of distance vision and refractive error on the spontaneous eye blink activity in human subjects in primary eye gaze.

J Optom 2019 Apr - Jun;12(2):111-119. Epub 2018 Apr 5.

Department of Vision Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow G4 OBA, United Kingdom. Electronic address:

Purpose: To evaluate whether visual target character and visibility affects spontaneous eye blink rate (SEBR) in primary eye gaze and silence.

Methods: Video recordings were made of young healthy adults who were either emmetropic (n=32) or who wore spectacles for refractive error (range -4.75D and +4. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.03.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449783PMC
April 2018
2 Reads

Enantiomorphism and rule similarity in the astigmatism axes of fellow eyes: A population-based study.

J Optom 2019 Jan - Mar;12(1):44-54. Epub 2018 Apr 4.

Department of Medical Surgical Nursing, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Electronic address:

Purpose: To evaluate the relationship patterns between astigmatism axes of fellow eyes (rule similarity and symmetry) and to determine the prevalence of each pattern in the studied population.

Methods: This population-based study was conducted in 2015 in Iran. All participants had tests for visual acuity, objective refraction, subjective refraction (if cooperative), and assessment of eye health at the slit-lamp. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.12.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318548PMC
January 2019
4 Reads

Publication bias and the chase for statistical significance.

J Optom 2018 Apr - Jun;11(2):67-68

Department of Ophthalmology, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA. Electronic address:

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.03.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5904829PMC
April 2018
2 Reads

Effect of phenylephrine on static and dynamic accommodation.

J Optom 2019 Jan - Mar;12(1):30-37. Epub 2018 Mar 27.

Interuniversity laboratory for research in Vision and Optometry. Mixed group UVEG-UMU, Spain; Facultad de Óptica y Optometría, Universidad de Murcia, 30100 Murcia, Spain.

Purpose: We tested the hypothesis that changes in accommodation after instillation of Phenylephrine Hydrochloride (PHCl) observed in some studies could be caused by changes in optics.

Methods: We performed two experiments to test the effects of PHCl on static and on dynamic accommodation in 8 and 6 subjects, respectively. Objective wavefront measurements were recorded of the static accommodation response to a stimulus at different distances or dynamic accommodation response to a sinusoidally moving stimulus (between 1 and 3 D of accommodative demand at 0. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.01.005DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318542PMC
January 2019
7 Reads

Prevalence of esophoria in concussed patients.

J Optom 2019 Jan - Mar;12(1):64-68. Epub 2018 Mar 27.

Vision Therapy and Neuro-optometric Rehabilitation, EyeCare Professionals, PC, Hamilton Square, NJ, United States.

Purpose: To assess the prevalence of esophoria at near in concussed patients in a neuro-optometric private practice setting.

Methods: A retrospective analysis was performed involving a chart review in a neuro-optometric, private practice setting of consecutive patients with a medical diagnosis of concussion from January 1st 2016 to December 31st 2016. A total of 71 patients were included in the analysis. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.02.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318546PMC
January 2019
7 Reads

Is 25Hz enough to accurately measure a dynamic change in the ocular accommodation?

J Optom 2019 Jan - Mar;12(1):22-29. Epub 2018 Mar 24.

School of Optometry and Vision Science, University of Waterloo, ON, Canada.

Background: Accommodation is often recorded at a low sampling rate using devices such as autorefractors that are designed to measure the static refractive error. It is therefore important to determine if that resolution is sufficient to accurately measure the dynamic properties of accommodation. The current study provides both theoretical and empirical evidence on the ideal sampling rate necessary to measure a dynamic response. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.02.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318547PMC
January 2019
5 Reads

Accommodation and age-dependent eye model based on in vivo measurements.

J Optom 2019 Jan - Mar;12(1):3-13. Epub 2018 Mar 21.

Facultad de Óptica y Optometría, Universidad de Murcia, 30100 Murcia, Spain. Electronic address:

Purpose: To develop a flexible model of the average eye that incorporates changes with age and accommodation in all optical parameters, including entrance pupil diameter, under photopic, natural, environmental conditions.

Methods: We collated retrospective in vivo measurements of all optical parameters, including entrance pupil diameter. Ray-tracing was used to calculate the wavefront aberrations of the eye model as a function of age, stimulus vergence and pupil diameter. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.01.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318498PMC
January 2019
5 Reads

Refractive error magnitude and variability: Relation to age.

J Optom 2019 Jan - Mar;12(1):55-63. Epub 2018 Mar 19.

University of Waterloo, School of Optometry and Vision Science, Waterloo, Canada.

Purpose: To investigate mean ocular refraction (MOR) and astigmatism, over the human age range and compare severity of refractive error to earlier studies from clinical populations having large age ranges.

Methods: For this descriptive study patient age, refractive error and history of surgery affecting refraction were abstracted from the Waterloo Eye Study database (WatES). Average MOR, standard deviation of MOR and astigmatism were assessed in relation to age. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.02.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318544PMC
January 2019
3 Reads

Comparison of contrast sensitivity in β-thalassemia patients treated by deferoxamine or deferasirox.

J Optom 2018 Mar 10. Epub 2018 Mar 10.

Thalassemia Research Center, Mazandaran University of Medical Sciences, Sari, Iran.

Purpose: To compare contrast sensitivity (CS) in multi-transfused β-thalassemia patients who received deferoxamine with those who received Osveral.

Methods: In this cross sectional study a total of 60 β-thalassemia patients (30 used deferoxamine and 30 used deferasirox) were regarded as case group and 30 age and sex matched healthy subjects were selected as control group. All subjects had a set of examinations including refraction, visual acuity, Biomicroscopy, ophthalmoscopy and CS. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2018.01.002DOI Listing
March 2018
5 Reads

Validation of refraction and anterior segment parameters by a new multi-diagnostic platform (VX120).

J Optom 2018 Oct - Dec;11(4):242-251. Epub 2018 Mar 9.

Department of Optometry and Vision Science, Hadassah Academic College, Jerusalem, Israel. Electronic address:

Background: The VX120 (Visionix Luneau, France) is a novel multi-diagnostic platform that combines Hartmann-Shack based autorefraction, Placido-disk based corneal-topography and anterior segment measurements made with a stationary-Scheimpflug camera. We investigate the agreement between different parameters measured by the VX120 with accepted or gold-standard techniques to test if they are interchangeable, as well as to evaluate the repeatability and reproducibility.

Methods: The right-eyes of healthy subjects were included in the study. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S18884296183000
Publisher Site
http://dx.doi.org/10.1016/j.optom.2017.12.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147758PMC
October 2018
10 Reads

Evaluation of Goldmann applanation tonometry, rebound tonometry and dynamic contour tonometry in keratoconus.

J Optom 2018 Apr - Jun;11(2):130-131. Epub 2018 Feb 1.

Department of Medicine and Surgery, University of Salerno, Baronissi, Salerno, Italy.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.10.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5904830PMC
February 2018
2 Reads

Symmetry of peripheral retinal nonperfusion in diabetic retinopathy by ischemic index.

J Optom 2018 Oct - Dec;11(4):262-267. Epub 2018 Jan 12.

Retinal Vitreal Consultants Ltd, Chicago, Illinois, 2626 S. Michigan Ave, Chicago, IL 60616, USA.

Purpose: Diabetic retinopathy is the leading cause of blindness among working-age adults in most developed countries. It affects eyes bilaterally and is generally believed to be symmetrical, yet there are few studies evaluating the symmetry of diabetic retinopathy. The purpose of the present study was to evaluate the symmetry of the amount of peripheral retinal ischemia in patients with diabetic retinopathy. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.11.005DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147743PMC
October 2018
4 Reads

Tear instability importance, mechanisms, validity and reliability of assessment.

J Optom 2018 Oct - Dec;11(4):203-210. Epub 2018 Jan 11.

School of Optometry and Vision Science, University of New South Wales, Kensington 2052, Australia. Electronic address:

Purpose: To examine the factors which contribute to tear stability and the validity and reliability of methods used for assessing tear break up time which is a core part of an examination of tear stability in dry eye patients.

Methods: A review of publications which are relevant to tear stability and its assessment.

Results: Tear break up time may be more invasive than intended if difficulty avoiding blinking during assessment results in reflex tearing. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.11.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147744PMC
October 2018
4 Reads

Scientific information overload in vision: What is behind?

Authors:
David P Piñero

J Optom 2018 Jan - Mar;11(1):1-2

Department of Optics, Pharmacology and Anatomy, University of Alicante, Spain; Department of Ophthalmology (OFTALMAR), Vithas Medimar International Hospital, Alicante, Spain. Electronic address:

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.12.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5777923PMC
January 2018
4 Reads

The effect of spherical aberration on visual performance and refractive state for stimuli and tasks typical of night viewing.

J Optom 2018 Jul - Sep;11(3):144-152. Epub 2017 Dec 29.

Instituto Universitario de Investigación en Envejecimiento, Universidad de Murcia, 30100 Murcia, Spain.

Purpose: The aim of this work was to examine the impact of Seidel spherical aberration (SA) on optimum refractive state for detecting and discriminating small bright lights on a dark background.

Methods: An adaptive-optics system was used to correct ocular aberrations of cyclopleged eyes and then systematically introduce five levels of Seidel SA for a 7-mm diameter pupil: 0,±0.18, and±0. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.10.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039613PMC
October 2018
6 Reads

Reply to: Central corneal thickness measurement with Cirrus HD-OCT and Topcon SP-3000P.

J Optom 2018 Jul - Sep;11(3):199. Epub 2017 Dec 26.

Department of Optometry, Instituto de Ciencias Visuales - INCIVI - Hospital La Zarzuela, Madrid, Spain. Electronic address:

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.11.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039611PMC
December 2017
3 Reads

Reply to comment by De Bernardo and Rosa on "Evaluation of Goldmann applanation tonometry, rebound tonometry and dynamic contour tonometry in keratoconus".

J Optom 2018 Apr - Jun;11(2):131. Epub 2017 Dec 15.

Department of Ophthalmology, Eskisehir Osmangazi University School of Medicine, Eskisehir 26480, Turkey.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.11.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5904828PMC
December 2017
6 Reads

Central corneal thickness measurement with Cirrus HD-OCT and Topcon SP-3000P.

J Optom 2018 Jul - Sep;11(3):198-199. Epub 2017 Dec 14.

Department of Medicine and Surgery, University of Salerno, Baronissi, Salerno, Italy.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.11.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039607PMC
December 2017
5 Reads

Measuring the heterophoria: Agreement between two methods in non-presbyopic and presbyopic patients.

J Optom 2018 Jul - Sep;11(3):153-159. Epub 2017 Dec 1.

Departamento de Óptica, Farmacología y Anatomía, Universidad de Alicante, Spain.

Purpose: To establish whether the cover test and von Graefe methods are interchangeable in a non-presbyopic and presbyopic population.

Methods: We performed a prospective study on a sample of 127 non-presbyopic subjects between 20 and 45 years old and 56 presbyopic between 40 and 78 years old. Distance and near vision phoria were measured using the von Graefe method (VG) and cover test (CT). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.10.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039587PMC
October 2018
4 Reads

Visual outcomes and management after corneal refractive surgery: A review.

J Optom 2018 Apr - Jun;11(2):121-129. Epub 2017 Nov 26.

Instituto de Oftalmobiología Aplicada (IOBA) Grupo de Superficie Ocular, Universidad de Valladolid, Valladolid, Spain; Departamento de Física Teórica Atómica y Óptica, Universidad de Valladolid, Valladolid, Spain.

Corneal refractive surgery procedures are widely performed to permanently correct refractive errors. Overall, refractive surgeries are safe, predictable and present high rates of satisfaction. Nevertheless, the induced epithelial, stromal and nerve damage alters corneal integrity and function, triggering a regenerative response. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.09.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5904824PMC
June 2018
5 Reads

Visual and binocular status in elementary school children with a reading problem.

J Optom 2018 Jul - Sep;11(3):160-166. Epub 2017 Nov 22.

School of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1.

Purpose: This descriptive study provides a summary of the binocular anomalies seen in elementary school children identified with reading problems.

Methods: A retrospective chart review of all children identified with reading problems and seen by the University of Waterloo, Optometry Clinic, from September 2012 to June 2013.

Results: Files of 121 children (mean age 8. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.09.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039580PMC
October 2018
6 Reads

Visual outcome of penetrating keratoplasty, deep anterior lamellar keratoplasty and Descemet membrane endothelial keratoplasty.

J Optom 2018 Jul - Sep;11(3):174-181. Epub 2017 Nov 13.

Department of Optics and Optometry, Universitat Politècnica de Catalunya · BarcelonaTech, Terrassa, Spain; Centre for Sensors, Instruments and Systems Development, Universitat Politècnica de Catalunya · BarcelonaTech, Terrassa, Spain.

Purpose: A single-center, cross-sectional study was designed to assess and compare objective and subjective quality of vision of patients intervened with penetrating keratoplasty (PK), deep anterior lamellar keratoplasty (DALK) and Descemet membrane endothelial keratoplasty (DMEK).

Methods: Forty-six patients previously intervened with PK (22 eyes), DALK (7 eyes) and DMEK (17 eyes) were recruited. Visual evaluation included spherical and cylindrical refraction, distance corrected visual acuity (DCVA), photopic contrast sensitivity (CS), optical quality, measured with the HD Analyzer (objective scattering index [OSI], MTF cut-off and Strehl ratio), and ocular and corneal aberrometry, measured with the KR-1W Wavefront Analyzer. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.08.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039585PMC
October 2018
5 Reads

The significance of changes in pupil size during straylight measurement and with varying environmental illuminance.

J Optom 2018 Jul - Sep;11(3):167-173. Epub 2017 Nov 12.

Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Meibergdreef 47, 1105 BA Amsterdam, The Netherlands.

Purpose: In this work, we investigated the pupillary conditions during straylight measurement, and the potential effect this might have on the measured straylight.

Methods: Five young (26-29-years-old) and 15 older (50-68-years-old) individuals participated in this study. First, the pupil diameter of both eyes was measured at three room illuminances. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.optom.2017.08.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6039612PMC
October 2018
4 Reads