Foveal structure in nanophthalmos and visual acuity
نویسندگان
چکیده
منابع مشابه
Association between integrity of foveal photoreceptor layer and visual acuity in branch retinal vein occlusion.
AIM To study the correlation between integrity of the photoreceptor layer after resolution of macular oedema (MO) associated with branch retinal vein occlusion (BRVO) and final visual acuity (VA), and to determine prognostic factors for visual outcome. METHODS We retrospectively studied 46 eyes from 46 patients with resolved MO secondary to BRVO, the foveal thickness of which was less than 25...
متن کاملPerceptual learning improves contrast sensitivity, visual acuity, and foveal crowding in amblyopia.
BACKGROUND Amblyopic observers present abnormal spatial interactions between a low-contrast sinusoidal target and high-contrast collinear flankers. It has been demonstrated that perceptual learning (PL) can modulate these low-level lateral interactions, resulting in improved visual acuity and contrast sensitivity. OBJECTIVE We measured the extent and duration of generalization effects to vari...
متن کاملEffect of wavelength on foveal grating acuity.
Acuity-luminance relations for a grating test object were determined with red, yellow, green, and blue narrow-band chromatic illuminants for five subjects. At intermediate and high luminance levels, acuities for blue were lower than for the other chromatic illuminants in four of the five subjects. One of these subjects also showed lower asymptotic acuity for red at high luminances. The fifth su...
متن کاملThe Relation between Foveal Visual Acuity and Illumination under Reduced Oxygen Tension
1. The foveal visual acuity of eleven subjects was studied in relation to illumination under normal atmospheric conditions and at simulated altitudes of 10,000 feet (14.3 per cent O(2)) and 18,000 feet (10.3 per cent O(2)). A mask was used to administer the desired mixtures of oxygen and nitrogen. At the end of each experiment, measurements were made while inhaling 100 per cent oxygen from a cy...
متن کاملVisual acuity and pupillary responses to spatial structure in infants.
PURPOSE To determine the age of onset of the pupil grating response (PGR). To compare estimates of resolution acuity obtained by pupillometric and behavioral methods in early infancy. METHODS Dynamic infrared pupillometry was undertaken on 19 newborn infants while they fixated a uniform background upon which a 0.1 c/deg sine wave grating was briefly presented. Pupillary responses were also re...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Ophthalmology
سال: 2020
ISSN: 0165-5701,1573-2630
DOI: 10.1007/s10792-020-01633-9