purpose: there are a few researches regarding the effects of islamic fasting on visual system. the aim of this study was to investigate the effects of ramadan fasting on the amplitude of accommodation (aa), near point of convergence (npc), positive and negative fusional vergences (pfv and nfv, respectively) in visually healthy fasters. methods: aa, npc, pfv and nfv at far (6m) and near (40cm) w...

purpose: to evaluate the effect of successful surgical alignment on improvement of binocular vision in adults with childhood strabismus methods: in a prospective interventional study, consecutive patients with childhood-onset, comitant, horizontal and constant strabismus who had successful postoperative alignment were enrolled. preoperative and postoperative binocular vision testing was perform...

The performance of depth reconstruction in binocular stereo relies on how adequate the predefined baseline for a target scene is. Widebaseline stereo is capable of discriminating depth better than the narrow one, but it often suffers from spatial artifacts. Narrow-baseline stereo can provide a more elaborate depth map with less artifacts, while its depth resolution tends to be biased or coarse ...

Described is a possible mechanism of binocular fusion In visual system based on continlous estimation of resulting "cor-tical image" doubling degree during ver-genoe eye movements. The mechanism does not require any search of corresponding sites in pair retinal images. The result of computer simulation of this mechanism are given. A sequence of information processing stages in binocular vision ...

III ABSTRACT The unified and three-dimensional percept we perceive through the two of our eyes is the result of multiple interacting functional and neural processing stages in the visual brain. They range from convergence eye movements and sensory merging of the two disparate monocular images (binocular convergent fusion) up to an elaborated stereoscopic percept containing spatial depth (stereo...

The optical instruments design for binocular vision has become an earnest demand towards the arrival of an ageing society. It is necessary to measure how color difference between left and right images by elderly people, which the color rivalry occurs. In this study, we measured the limit of binocular color fusion in the normal vision and the cataract experiencing vision which is aiming to simul...