Add Yahoo as a preferred source to see more of our stories on Google. Have you ever had the experience of seeing double? If so, then you know it feels really weird to see two images where you know ...

A 76-year-old man was referred to the Lahey Medical Center ophthalmology department for a cataract evaluation. He complained of progressive blurry vision in both eyes associated with glare worse at ...

The extraocular muscles are involved in moving the eyes in different directions as well as keeping them straight so that we are able to perceive one single image. When there is a deviation of one or ...

The Bushnell Equinox X650 Night Vision 5 x 32 mm Monocular offers numerous features at an attractive price point. However, the overall feel, construction and performance of the monocular are lacking, ...

Last year, Duovox launched a Kickstarter for a compact full-color night-vision camera built around a custom Sony sensor. Now the startup has returned to the platform with a military-grade monocular ...

OK, this question isn't about the usual subset of audio-visual topics we mostly see here. It's about things to enhance what you see with your eyes. I wear glasses, and have done since I was a teenager ...

Monocular cues are ways one eye judges distance, depth, and three-dimensional space. Six monocular cues guide depth perception: relative size, interposition, linear perspective, aerial perspective, ...

The Bushnell Equinox X650 Night Vision monocular packs a lot of features into a very competitively priced unit. The low price is reflected in the monocular's feel, construction and performance, which ...