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Optometry and Vision Science: Official Publication of the American Academy of Optometry

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https://www.readbyqxmd.com/read/30601363/fixation-stability-with-bessel-beams
#1
Dipesh Bhattarai, Marwan Suheimat, Andrew J Lambert, David A Atchison
SIGNIFICANCE: Ophthalmic imaging instruments that require stable fixation can benefit by using Bessel beams in the form of monitor-based Bessel images. PURPOSE: The purpose of this study was to investigate fixation stability using laser Bessel and Gaussian beams and monitor-based images of these targets. METHODS: The right eyes of 16 participants were presented with seven fixation targets: monitor-based images of a bull's eye/cross hair, a Gaussian beam, a Bessel beam with four rings and a Bessel beam with three rings; laser Gaussian beam, laser Bessel beam with four rings, and laser Bessel beam with three rings...
December 29, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30601362/case-report-management-of-corneal-clouding-from-lecithin-cholesterol-acyltransferase-deficiency
#2
Christine J Zemsky, Suzanne W Sherman, Hermann D Schubert, Leejee H Suh
SIGNIFICANCE: Given that there are few reported cases of lecithin:cholesterol acyltransferase (LCAT) deficiency, recognition of the condition with proper management is notable. Long-term follow-up and contact lens fitting after penetrating keratoplasty provide best possible outcomes. PURPOSE: The purpose of this study was to report a case of LCAT deficiency successfully treated with penetrating keratoplasty and longer-term follow-up with contact lens fitting. CASE REPORT: A 43-year-old white woman of Italian descent presented with corneal clouding and trouble with night vision...
December 29, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30601361/auditory-global-positioning-system-and-advanced-driver-assistance-systems-a-safer-alternative-to-bioptic-telescopes-for-drivers-who-are-visually-impaired
#3
Mark E Wilkinson, Daniel V McGehee
This work challenges the standard of the past 40 years, which required the use of a bioptic telescope by individuals with vision loss wanting to be licensed to drive in most states in the United States.Driving continues to be the key to independence for many individuals, particularly older drivers who live in an area where public transportation is limited or nonexistent. For the past 40 years, the most frequently option to allow drivers who are visually impaired to maintain driving privileges was to require them to use a bioptic telescope...
December 29, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30589765/supporting-dry-eye-diagnosis-with-a-new-method-for-noninvasive-tear-film-quality-assessment
#4
Clara Llorens-Quintana, Dorota Szczesna-Iskander, D Robert Iskander
SIGNIFICANCE: Noninvasive high-speed videokeratoscopy equipped with specific software has shown potential for assessing the homeostasis of tear film, providing clinicians with a fast and consistent tool for supporting dry eye diagnosis and management. PURPOSE: The purpose of this study was to evaluate the efficacy of a recently proposed method for characterizing tear film dynamics using noninvasive high-speed videokeratoscopy in assessing the loss of homeostasis of tear film...
December 26, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30589764/experimental-study-of-refraction-effects-of-nominally-plano-ophthalmic-prisms-and-magnifying-lenses
#5
David A Atchison, Jianing Lu, Cleo Yip, Marwan Suheimat, Katrina L Schmid
SIGNIFICANCE: Nominally plano ophthalmic prisms give autorefraction results similar to those predicted on the basis of how effective powers change with pantoscopic tilt, and magnifying lenses give autorefraction results similar to those predicted on the basis of vergence changes. Without appreciation of the optics involved, these effects might wrongly be considered artifacts. PURPOSE: The purpose of this study was to investigate the interactions of autorefractors with lenses and prisms...
December 26, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30589763/a-novel-method-for-optical-distortion-quantification
#6
Katherine M Gerton, Brenda J Novar, William Brockmeier, Christopher Putnam
SIGNIFICANCE: Optical distortion is the image degradation of a visual target induced by a transparent material. Current Air Force evaluation of distortion is an entirely qualitative assessment of the acceptability of image distortion. The novel, quantitative technique described here is capable of identifying 0.1% distortion across an array of optical samples. PURPOSE: Optical distortion is the effect by which a transparent object spatially warps the perception of a visual target...
December 26, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30589762/case-report-primary-conjunctival-non-hodgkin-marginal-zone-lymphoma
#7
Loren W Bennett
SIGNIFICANCE: Ophthalmic manifestations of non-Hodgkin lymphoma are rare, and the diagnosis can be delayed because of nonspecific symptoms and a tendency to mimic the appearance of other ocular diseases. Suspicious presentations will require confirmation of the lymphoma through surgical biopsy. PURPOSE: The purpose of this study was to present an isolated conjunctival non-Hodgkin marginal zone lymphoma without systemic involvement, which was successfully managed with external beam radiation...
December 26, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30589761/comparison-of-three-different-tonometers-in-eyes-with-angle-closure
#8
Tae-Eun Lee, Chungkwon Yoo, Yong Yeon Kim
SIGNIFICANCE: Precise measurement of intraocular pressure (IOP) is essential when diagnosing and managing glaucoma. We compared the IOP readings of three different tonometers and analyzed agreement among tonometers in eyes with high IOPs. PURPOSE: The purpose of this study was to compare the IOP readings obtained using a Goldmann applanation tonometer (GAT), a rebound tonometer (RT), and a Tono-Pen (TP) in angle-closure eyes with elevated IOP before and after medical IOP-lowering therapy...
December 26, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30589760/outcomes-after-comprehensive-vision-rehabilitation-using-vision-related-quality-of-life-questionnaires-impact-of-vision-impairment-and-national-eye-institute-visual-functioning-questionnaire
#9
Alexandra Selivanova, Eva Fenwick, Ryan Man, William Seiple, Mary Lou Jackson
SIGNIFICANCE: This research is significant because, although vision-related quality of life (VRQoL) is improved after vision rehabilitation (VR), patients with certain characteristics respond less positively on VRQoL measures, and this should inform future care. PURPOSE: The purposes of this study were to evaluate how two VRQoL questionnaires compare in measuring change in patient-reported outcomes after VR and to determine if patient characteristics or occupational therapy (OT) predict higher scores after rehabilitation...
December 26, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30589759/changes-in-the-properties-of-the-preferred-retinal-locus-with-eccentric-viewing-training
#10
Shirin E Hassan, Nicole Christie Ross, Robert W Massof, Joan Stelmack
SIGNIFICANCE: This study explores whether eccentric viewing training (EVT) changes the properties of the retinal area used for fixation in subjects with bilateral macular disease. The data presented demonstrate the feasibility of conducting a randomized controlled trial on EVT. PURPOSE: Patients with bilateral central scotomas adopt other retinal area(s) called preferred retinal locus to substitute the blind fovea. EVT is offered with the goal to improve functional vision by learning how to identify and use a more useful retinal area for fixation-a trained retinal locus-and/or to improve fixation stability with their existing preferred retinal locus...
December 26, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30570601/development-and-psychometric-assessment-of-novel-item-banks-for-hereditary-retinal-diseases
#11
Mallika Prem Senthil, Jyoti Khadka, John De Roach, Tina Lamey, Terri McLaren, Isabella Campbell, Eva K Fenwick, Ecosse L Lamoureux, Konrad Pesudovs
SIGNIFICANCE: This study develops psychometrically valid item banks across 10 areas of quality of life (QoL) specific to people with hereditary retinal diseases, which will enable clinicians and researchers to explore the impact of hereditary retinal diseases across all aspects of QoL. PURPOSE: The purpose of this study was to assess the psychometric properties of hereditary retinal disease QoL item banks using Rasch analysis and demonstrate the effectiveness of a computerized adaptive testing (CAT) system in obtaining precise measurement of QoL using only a few items...
December 18, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30570599/intraocular-pressure-elevation-during-lateral-body-posture-in-side-sleeping-glaucoma-patients
#12
Ji-Hye Park, Chungkwon Yoo, Eunjoo Yoo, Yong Yeon Kim
SIGNIFICANCE: In side-sleeping open-angle glaucoma (OAG) patients, eyes that showed progression exhibited a greater intraocular pressure (IOP) elevation when subjects were rested in the lateral decubitus (LD) posture on the ipsilateral side compared with those eyes that did not progress. PURPOSE: The purposes of this study were to investigate whether lying in the LD position for an extended period affects IOP in side-sleeping patients with OAG when rested on their own pillow and to compare posture-induced IOP variations between eyes with recent glaucomatous progression and those without...
December 18, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30570597/case-report-sequelae-of-bilateral-iris-pigment-epithelial-cysts-masquerading-as-primary-pigmentary-glaucoma
#13
Sandra Nelle Harpster, Juliane Grace Flettner, Andrew Boyd Mick
SIGNIFICANCE: Patients with pigment dispersion syndrome are frequently encountered in clinical practice. Iris abnormalities and the absence of key features of pigment dispersion syndrome can guide the discovery of secondary causes of pigmentary glaucoma, such as peripheral iris pigment epithelial cysts. PURPOSE: The purpose of this study was to describe a patient initially diagnosed as having primary pigmentary glaucoma found to have multiple bilateral peripheral iris pigment epithelial cysts causing pigment liberation, focal angle closure, and advanced secondary glaucoma...
December 18, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30570596/objective-assessment-of-disparity-vergence-after-treatment-of-symptomatic-convergence-insufficiency-in-children
#14
Mitchell Scheiman, Henry Talasan, Tara L Alvarez
SIGNIFICANCE: This first report of the use of objective measures of disparity vergence as outcome measures for symptomatic convergence insufficiency in children provides additional information that is not accessible with clinical tests. The study results also demonstrate that objective measures of vergence could be used in future randomized clinical trials of binocular vision disorders with children. PURPOSE: This study was designed to evaluate changes in objective measures of disparity vergence after office-based vergence/accommodative therapy (OBVAT) for convergence insufficiency in children 12 to 17 years old...
December 18, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30451809/ophthalmic-conditions-associated-with-inpatient-falls-among-veterans
#15
Giovanni Campagna, Paul Chamberlain, Silvia Orengo-Nania, Kristin Biggerstaff, Sumitra Khandelwal
SIGNIFICANCE: Efforts to describe the relationship between pathological visual impairment and fall risk are typically confined to community dwellers. Among admitted patients, however, the associations are less understood. Fall risk assessment tools are used in some clinical settings, but most do not capture the suspected importance of ophthalmic pathologies in predicting the likelihood of an inpatient fall. PURPOSE: The purpose of this study was to determine the association between ophthalmic conditions and inpatient falls at the Michael E...
November 16, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30451808/scotoma-simulation-in-healthy-subjects
#16
Sascha Klee, Dietmar Link, Stefan Sinzinger, Jens Haueisen
SIGNIFICANCE: This article shows a successful concept for simulating central scotoma, which is associated with age-related macular degeneration (AMD), in healthy subjects by an induced dark spot at the retina using occlusive contact lenses. The new concept includes a control mechanism to adjust the scotoma size through controlling pupil size without medication. Therefore, a miniaturized full-field adaptation device was used. PURPOSE: The aim of this study was to design a novel concept to simulate AMD scotoma in healthy subjects using occlusive contact lenses...
November 16, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30451807/comparison-of-the-ultraviolet-light-filtering-across-different-intraocular-lenses
#17
Mari Carmen García-Domene, Caridad Pérez-Vives, Cristina Peris-Martínez, José María Artigas
SIGNIFICANCE: We have analyzed the ultraviolet transmittance of some commercial intraocular lenses (IOLs). The results show differences of wavelength cutoff among them. PURPOSE: The purpose of this study was to measure and compare the ultraviolet light transmittance of different IOLs made out of acrylic hydrophobic, hydrophilic, and hydrophilic with hydrophobic surface materials from different manufacturers. METHODS: The spectral transmission curves of eight monofocal IOLs with the same dioptric power of +20...
November 16, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30451806/visual-performance-of-daily-disposable-multifocal-soft-contact-lenses-a-randomized-double-blind-clinical-trial
#18
Jennifer Sha, Daniel Tilia, Danny Kho, Hamdy Amrizal, Jennie Diec, Nisha Yeotikar, Monica Jong, Varghese Thomas, Ravi C Bakaraju
SIGNIFICANCE: The present study highlights the differences between modern daily-disposable multifocal soft contact lenses to assist eye care practitioners in fitting presbyopic contact lens wearers. PURPOSE: The purpose of this study was to compare visual performance of three daily-disposable multifocal contact lenses. METHODS: Presbyopes (n = 72) wore 1-Day Acuvue Moist Multifocal, BioTrue ONEday for Presbyopia, and Dailies AquaComfort Plus Multifocal for 1 week in a prospective, randomized, double-blind, crossover clinical trial...
November 16, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30451805/identification-of-a-cngb1-frameshift-mutation-in-a-han-chinese-family-with-retinitis-pigmentosa
#19
Qin Xiang, Yi Guo, Yanna Cao, Wei Xiong, Xiong Deng, Hongbo Xu, Yu Li, Dongdong Du, Hao Deng
SIGNIFICANCE: Retinitis pigmentosa (RP) is a severe hereditary retinal disorder characterized by progressive degeneration of rod and cone photoreceptors. This study identified a novel frameshift mutation, c.385delC, p.(L129WfsTer148), in the cyclic nucleotide-gated channel beta 1 (CNGB1) gene of a consanguineous Han Chinese family with autosomal recessive RP (arRP). This expands the spectrum of CNGB1 gene variants in RP cases and possibly refines future genetic counseling. PURPOSE: The present study sought to identify potential pathogenetic gene mutations in a five-generation consanguineous Han Chinese family with RP...
November 16, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/30451803/measuring-daily-disposable-contact-lenses-against-nonwearer-benchmarks
#20
Percy Lazon de la Jara, Jennie Diec, Thomas Naduvilath, Eric B Papas
SIGNIFICANCE: Since becoming a popular form of refractive error correction, contact lenses have aspired to replicate the nonwearer experience. This study assessed how well currently available daily disposable soft lenses have achieved that goal, using a graphical representation to show individual lens behavior relative to benchmarks. PURPOSE: The purpose of this study was to assess comfort, vision, and adverse events during daily disposable contact lens wear, relative to emmetropes and spectacle wearers...
November 16, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
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