Eye rotation and vignetting in visual instruments.

Applied optics

PubMedID: 12412650

Rosete-Aguilar M, Rayces JL. Eye rotation and vignetting in visual instruments. Appl Opt. 2002;41(31):6593-602.
The eye can rotate to accommodate the angular position of an object and the distance of the object from it. The rotation of the eye inside its socket to align its visual axis in the direction of an off-axis image may introduce full or partial vignetting when one is looking through a visual instrument with a real exit pupil. We analyze the effects of vignetting owing to rotation of the eye in visual instruments with real exit pupils.