Results 241 to 250 of about 1,883,193 (285)

MACULAR PHOTOSTRESS TESTING: SENSITIVITY AND RECOVERY WITH AN AUTOMATED PERIMETER

Retina, 2005
To describe a novel method for the evaluation of macular function with photostress testing and outline normative foveal threshold and recovery data for the adult population.In this prospective study, 50 adult subjects (25 men and 25 women aged 30-49 years) with no ocular disease underwent foveal threshold testing using the Humphrey Visual Field ...
Mandeep Singh, Dhalla, Aldo, Fantin
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Macular edema reduces B cone sensitivity in diabetics

Applied Optics, 1987
A simple clinical test of B cone pathway sensitivity shows that a group of 45 diabetics (of which 31 have VA >/= 20/20) are 40 times less sensitive than a group of 57 normals. By contrast, the diabetic group is less than 2.2 times less sensitive than the normals for R and/or G cone pathway sensitivity. The selective B cone sensitivity loss is seen even
A J, Adams, F, Zisman, E, Ai, G, Bresnick   +3 more
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Macular sensitivities measured by microperimetry in patients on hydroxychloroquine treatment

Cutaneous and Ocular Toxicology, 2018
To examine retinal sensitivity in patients on hydroxychloroquine (HCQ) with no evidence of retinopathy.Seventy patients on HCQ and 30 healthy control subjects were included prospectively. All subjects underwent complete ophthalmic examination including best corrected visual acuity, tonometry, colour vision testing, biomicroscopy of anterior segment ...
Mustafa, Eren, Murat, Kucukevcilioglu, Ali Hakan, Durukan   +2 more
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Spectral sensitivity in eyes with macular holes and their fellow eyes

Clinical and Experimental Optometry, 2003
This prospective study was undertaken to investigate whether spectral sensitivity can be useful in determining the prognosis of fellow eyes of eyes with macular holes.Spectral sensitivity measurements using a one degree test spot presented at a rate of 1 Hz and 25 Hz on a bright (1000 td) white background were carried out on 10 patients aged between 67
Kaur, Sharanjeet, O'donoghue, Eammon, Murray, Ian J.   +2 more
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Effects of Luminance on Contrast Sensitivity in Senile Macular Degeneration

Optometry and Vision Science, 1983
ABSTRACT Patients with senile macular degeneration (SMD) often have difficulties in adapting to changing luminance levels. They may complain of problems at both high and low luminance levels, although some patients have their vision function markedly improved at high luminance levels.
B, Brown, L F, Garner
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Foveal sensitivity and visual acuity in macular thickening disorders

Japanese Journal of Ophthalmology, 2012
To study the relationship between foveal sensitivity and visual acuity in eyes with macular disorders exhibiting macular thickening.We studied the relationship between foveal sensitivity, obtained as the "foveal threshold" by use of Humphrey perimetry, and best-corrected visual acuity, converted to the logarithm of the minimum angle of resolution ...
Nami, Chiba, Mitsuhiro, Imasawa, Teruhiko, Goto, Masahito, Imai, Hiroyuki, Iijima   +4 more
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Macular sensitivity in patients with congenital stationary night-blindness

British Journal of Ophthalmology, 2018
AimTo evaluate and correlate mean light sensitivity thresholds (MLST) in patients with congenital stationary night-blindness (CSNB) in comparison with healthy subjects using microperimetry (MP1).MethodsEleven patients with CSNB and 13 healthy subjects were compared.
Antony William, Susanne Kohl, Christina Zeitz, Gabriel Willmann, Eberhart Zrenner, Karl-Ulrich Bartz-Schmidt, Florian Gekeler, Andreas Schatz   +7 more
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Sensitivity of lateral cerebellar nucleus to macular stimulation in the rabbit

Experimental Brain Research, 1978
Experiments were performed in decerebrate rabbits to determine the sensitivity of the lateral cerebellar nucleus (LCN) to macular stimulation. Twenty-three percent of the neurons recorded extracellularly in the LCN showed steady changes in their discharge rate during 20 degrees tilt in both directions of the medial plane.
M, Favilla, B, Ghelarducci, P C, Magherini   +2 more
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Use of fundus perimetry (microperimetry) to quantify macular sensitivity

Progress in Retinal and Eye Research, 2008
The advances in retinal imaging technologies have led to enormous innovation towards diagnostic in current ophthalmology, enabling the practitioner to detect early retinal changes and to document treatment effects. While, in the past, retinoscopy, visual acuity testing and perimetry played the major role in functional diagnostics, today, laser-based ...
Klaus, Rohrschneider, Stefan, Bültmann, Christina, Springer   +2 more
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Macular Retinal Sensitivity and Microvasculature Changes before and after Vitrectomy in Idiopathic Macular Epiretinal Membrane with Classification

Ophthalmologica, 2021
<b><i>Purpose:</i></b> To observe retinal sensitivity (RS) and microvasculature changes in preoperative and postoperative idiopathic macular epiretinal membrane (iERM) with optical coherence tomography (OCT) classification by microperimetry (MP) and optical coherence tomography angiography (OCTA).
Zhaokai, Xu, Jianbo, Mao, Jimeng, Lao, Xinyi, Deng, Chenyi, Liu, Jiahao, Xu, Sulan, Wu, Yiqi, Chen, Lijun, Shen   +8 more
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