Results 11 to 20 of about 315,719 (318)
Luminance and contrast adaptation of the inner retina [PDF]
Adaptation is a common feature of sensory systems, matching neural activity to the range of inputs from the environment. In the visual system this is of great importance because visual stimulus can change across 9 orders of magnitude.
Santos Caracol Teixeira, Miguel Henriques dos
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Noise removal at the rod synapse of mammalian retina [PDF]
Mammalian rods respond to single photons with a hyperpolarization of about 1 mV which is accompanied by continuous noise. Since the mammalian rod bipolar cell collects signals from 20–100 rods, the noise from the converging rods would overwhelm the ...
M.C.W. van ROSSUM +4 more
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Outer retina analysis by optical coherence tomography in cone-rod dystrophy patients [PDF]
Purpose: To analyze the outer retinal layers using spectral domain optical coherence tomography (SD-OCT) in patients with cone-rod dystrophy.Methods: The diagnosis of cone-rod dystrophy was determined by primary cone involvement or concomitant loss of ...
Sallum, Juliana Maria Ferraz [UNIFESP] +2 more
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미용 안면 필러 주사 시술 후 발생한 망막하출혈을 동반한 다발성 망막동맥폐쇄의 증례 보고 [PDF]
Purpose: Retinal artery occlusion and ciliary artery occlusion (CAO) may occur as complications after cosmetic filler injections. However, submacular and subhyaloid hemorrhage have not been reported after cosmetic filler injection.
이승민, 김민
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Purpose To study the optical coherence tomography (OCT) changes in eyes with acute central retinal artery occlusion (CRAO) of different severity and at different disease stages. Methods The study included acute CRAO cases of
Rubble Mangla +7 more
doaj +1 more source
Programmable active pixel sensor to investigate neural interactions within the retina [PDF]
Detection of the visual scene by the eye and the resultant neural interactions of the retina-brain system give us our perception of sight. We have developed an Active Pixel Sensor (APS) to be used as a tool for both furthering understanding of these ...
Derek Murdoch +15 more
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Trombositopeni ve Retina [PDF]
Trombositler kanın pıhtılaşmasında ve yara iyileşmesinde rol alırlar. Trombositopeni periferik kanda trombosit sayısının 150000/ mm3’ten az olmasına denir. Trombositopeninin en sık nedeni artmış yıkımdır. Trombositopenide oküler tutulum nadir olup en sık
Pekel, Gökhan
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Functional evidence for cone-specific connectivity in the human retina [PDF]
NoPhysiological studies of colour vision have not yet resolved the controversial issue of how chromatic opponency is constructed at a neuronal level. Two competing theories, the cone-selective hypothesis and the random-wiring hypothesis, are currently ...
McGraw, Paul V. +3 more
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Purpose The aim of this study is to describe and compare the baseline demographic, ocular, and imaging characteristics of a cohort of patients with optic disc pit (ODP) or optic disc coloboma (ODC) maculopathy.
Vishma Prabhu +8 more
doaj +1 more source
Dynamics of Amyloid Beta Protein Signaling under Complexity Reduction: A Mathematical Modeling and BooleSim Simulation Approach [PDF]
Understanding how complex biological systems behave over time is essential for predicting their future states, especially when studying Alzheimer's disease.
Kociaj Inva, Çapuni Retina
doaj +1 more source

