Topic
Foveal
About: Foveal is a research topic. Over the lifetime, 2652 publications have been published within this topic receiving 94120 citations.
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TL;DR: Fluorescein angiography revealed a variable and incomplete filtering effect of the choroidal fluorescence in the macular area, suggesting abnormalities in the amount and distribution of macular pigments, and suggests foveal hypoplasia may be more common than is generally believed.
Abstract: Fifteen patients presented with foveal hypoplasia as an isolated ocular finding. The characteristic findings associated with this entity are a visual acuity of 6/21 or worse, nystagmus, and a typical ophthalmoscopic appearance of the macular area, including absent or abnormal maculofoveal reflexes, unclear definition of the maculofoveal area, and capillaries running abnormally close to the presumed macular area, some of them even crossing the horizontal meridian. Fluorescein angiography revealed a variable and incomplete filtering effect of the choroidal fluorescence in the macular area, suggesting abnormalities in the amount and distribution of macular pigments. The fundal findings of isolated foveal hypoplasia, although typical, are very subtle and often difficult to detect, especially because of the accompanying nystagmus. For this reason we suspect that foveal hypoplasia may be more common than is generally believed.
82 citations
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TL;DR: It was found that eccentric smooth pursuit is easily accomplished with no practice and the phase of smooth pursuit showed greater lag with the scotopic target than with photopic target, and predictive tracking occurs in the perifoveal retina.
82 citations
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TL;DR: The highly reflective region is a characteristic sign observed in the OCT images of eyes with VMT and ERM, and it has been termed the cotton ball sign after its appearance and may be a predictor of visual impairment.
81 citations
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TL;DR: This article examined the effects of a typographical error in parafoveal vision on aspects of foveal inspection time and saccade targeting, and found that the effect of the error was caused by replacing the first letter of the target word with a second occurrence of its second letter, producing an illegal nonword.
Abstract: Three experiments are reported, examining the effects of a typographical error in parafoveal vision on aspects of foveal inspection time and saccade targeting. All the experiments involved reading for comprehension. A contingent presentation procedure ensured that typographical errors were restored to their correct form before they were viewed in foveal vision: They were never available for foveal processing. In Experiment 1, the error was formed by replacing the first letter of the target word with a second occurrence of its second letter, producing an illegal nonword. This manipulation had no significant effect on foveal inspection time, but lowered the probability that a short word (“de” or “du”) prior to the target would be skipped. In Experiment 2 the familiarity of the target's initial letters was maintained constant across conditions. This manipulation removed the target 1 skipping effect, suggesting that the outcome of Experiment 1 was due to orthographic rather than lexical illegality, but reveal...
81 citations
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TL;DR: In this paper, the directionality of the foveal receptors of four subjects was assessed with a technique based on lightscattering and a psychophysical technique, and the width and orientation of the absorbance diagram (difference between the scattering diagram in a bleached and unbleached state of the visual pigment) were compared with the Stiles-Crawford function.
80 citations