PURPOSE To characterize binocular visual acuity summation and inhibition in participants of a population-based ocular epidemiologic study. METHODS A complete ophthalmic examination of Latinos, aged 40 or more years, measured binocular and monocular distance visual acuities by a standard early-treatment diabetic retinopathy study (ETDRS) protocol. The proportions of participants who demonstrat...

There is an ongoing debate on whether binocular rivalry involves competition among monocular cells or binocular cells. We investigated this issue psychophysically with two specially designed test stimuli. One test stimulus contained monocular motion signals but greatly reduced binocular motion signals, while the other contained binocular motion signals but no monocular motion signals. For compa...

Two different colours, one presented to one eye and the other presented to the other eye, often create the impression of a third colour. This percept is known as binocular colour mixture. Here we use coloured stereograms to study binocular colour appearance. Vivid pastel colours are induced in monocular, achromatic patches, if these are placed in stereograms whose left and right images differ i...

Complex cells in the striate cortex exhibit extensive spatiotemporal nonlinearities, presumably due to a convergence of various subunits. Because these subunits essentially determine many aspects of a complex cell receptive field (RF), such as tuning for orientation, spatial frequency, and binocular disparity, examination of the RF properties of subunits is important for understanding functiona...

Optimal binocular vision is associated with depth perception and enhancement of certain other aspects of vision. Binocular interaction can, however, be compromised when one of the monocular inputs is altered in conditions like anisometropia. We aimed to evaluate the effects of interocular refractive differences, electrophysiologically, by recording transient pattern reversal visual evoked poten...

We studied the low-level interactions between motion coherence detection and binocular correlation detection. It is well-established that e.g. depth information from motion parallax and from binocular disparities is effectively integrated. The question we aimed to answer is whether such interactions also exist at the very first correlation level that both mechanisms might have in common. First ...

PURPOSE To determine the sources of binocular visual field loss most strongly associated with falls in a cohort of older women. METHODS In the Study of Osteoporotic Fractures, women with severe binocular visual field loss had an increased risk of two or more falls during the 12 months following the eye examination. The lens and fundus photographs of the 422 women with severe binocular visual ...

Suprathreshold binocular contrast interactions were studied psychophysically. A split-screen CRT display was used to present separate sine-wave gratings to the observer's left and right eyes. The method of constant stimuli and a modified method of adjustment were used to find sets of binocular test patterns that matched a given binocular standard. Test patterns consisted of the simultaneous pre...

The satellite navigation signal in the tunnel is weak, and it difficult to achieve accurate lateral positioning complex conditions such as low-speed congestion by relying solely on inertial or line image recognition, which one of problems automatic driving at present. In this paper, a lane-level location method based multi-sensor fusion proposed. Using machine vision method, detecting lane line...

In ophthalmology, early fundus screening is an economic and effective way to prevent blindness caused by ophthalmic diseases. Clinically, due the lack of medical resources, manual diagnosis time-consuming may delay condition. With development deep learning, some researches on diseases have achieved good results, however, most them are just based one disease. During screening, ophthalmologists u...