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Publication
ID31735256Published Date2020-06-01JournalVision research, 2020-06-01, Volume 171
Many people with stereo-deficiency cannot perform stereoacuity tasks at any binocular disparity, so their threshold cannot be measured. We developed a generally useful new composite stereodepth or CSD score, with range 0 to 20, that combines stereoacuity (from 0 to 13.3) and percent correct (13.3 to 20) into a single index. CSD allows differences in stereodepth performance to be measured across groups when thresholds cannot be reliably measured, and across time when individuals gain stereodep…
Research Grant
Project Number2T35EY020481-11Funding AgencyNational Institutes of HealthEffective Date2020-05-01Expiration Date2021-03-31Funding Amount$37,565
We request a continuation of the T35 Training Program at the State University of New York College of Optometry that has existed for over 30 years. The purpose of the program is to introduce optometry students to basic, translational, and clinical optometric and vision science research by participating full-time for ten weeks in a research project mentored by one of the 13 members of our distinguished research faculty. Research programs of the training faculty include cell biology, ocular phar…
Publication
IDDOI:10.19052/sv.vol17.iss2.4Published Date2020-03-31JournalCiencia y Tecnología para la Salud Visual y Ocular, 2020-03-31, Volume 17
Background: While a number of previous studies have investigated the repeatability of techniques designed to measure heterophoria, there have been few studies of their validity. Accordingly, the present study examined the ability of 3 standard techniques; Von Graefe (VG), Maddox Rod (MR) and Modified Thorington (MT) tests to quantify a known change in heterophoria. Methods:The study was performed on 30 young subjects using each of the 3 procedures listed above. Near (40 cm) heterophoria was q…
Research Grant
Project Number5R01EY027361-04Funding AgencyNational Institutes of HealthEffective Date2020-03-01Expiration Date2021-02-28Funding Amount$405,000
PROJECT SUMMARY Visual information is transferred from the eye to the brain through ON and OFF pathways that signal the presence of light and dark features in visual scenes. ON and OFF pathways are present in all animals with image-forming visual-systems including flies and primates, however, we still have a poor understanding of how they interact in visual processing. While neuroscience textbooks describe ON and OFF pathways as sharing equal cortical space, recent work has demonstrated that …
Publication
ID32005971Published Date2020-01-31JournalScientific reports, 2020-01-31, Volume 10
We designed this study to assess if surgical safety can be improved by intraoperative use of intraocular lens (IOL) for cataract phacoemulsification. We performed phacoemulsification cataract removal on 401 patients. We randomly assigned these patients into three groups: the standard setting (Group I, n = 134), with reduced vacuum and flow rate (Group II, n = 137), and with IOL insertion before the last quadrant was emulsified with standard setting (Group III, n = 130). The primary outcomes i…
Publication
ID32007978Published Date2020-01-01JournalWork (Reading, Mass.), 2020-01-01, Volume 65
Many ophthalmic lens manufacturers are currently marketing blue-blocking filters, which they claim will reduce symptoms of Digital Eye Strain (DES). However, there is limited evidence to support the proposal that DES results from the blue light emitted by electronic screens.This investigation compared the effect of blue-blocking filters on DES symptoms with a no-filter lens, using a double-blind methodology.Twenty-four subjects were required to perform a 20-minute reading task from a tablet c…
Publication
ID31722005Published Date2019-11-01JournalJournal of vision, 2019-11-01, Volume 19
The brain combines information from the two eyes during vision. This combination is obligatory to a remarkable extent: In random-dot kinematograms (RDKs), randomly moving noise dots were similarly effective at preventing observers from seeing the motion of coherently moving signals dots, independent of whether the signal and noise were presented to the same eye or segregated to different eyes. However, motion detectors have varied binocularity: Neurons in visual brain area V1 that encode high…
Research Grant
Project Number2R01EY007360-30A1Funding AgencyNational Institutes of HealthEffective Date2019-09-30Expiration Date2020-08-31Funding Amount$400,027
Electrical synaptic transmission via gap junctions (GJs) is an important mode of neuronal communication in the CNS. An elegant example is the retina in which each of the five main neuronal types is electrically coupled via GJs. The broad distribution, diverse connexin subunit structure, and regulation of retinal GJs suggest a diversity of functional roles in visual processing; elucidating these roles forms the long-term goal of our experimental program. Here we propose to study the GJs in the…
Research Grant
Project Number1R01EY030669-01Funding AgencyNational Institutes of HealthEffective Date2019-09-01Expiration Date2020-07-31Funding Amount$634,206
Project Summary Understanding how we select targets for saccadic eye movements is a basic research question of far-reaching importance. These rapid eye movements allow the fovea to fixate objects of interest, and we typically make more than 170,000 saccades each day. Saccades are essential for efficient visual perception and action: from reading to cooking to driving, most common behaviors heavily engage the saccadic system, and a dysfunctional mechanism for selecting saccade targets would im…
Publication
ID31391523Published Date2019-08-07JournalScientific reports, 2019-08-07, Volume 9
The purpose of this study was to evaluate the effect of interrupting negative lens wear for short periods early or late during the development of lens-induced myopia in marmosets. Sixteen marmosets were reared with a -5D contact lens on their right eye (plano on contralateral eye) for 8 weeks. Eight marmosets had lenses removed for 30 mins twice/day during the first four weeks (early interruption) and eight during the last four weeks (late interruption). Data were compared to treated controls…
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Publications: 242
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