Beyond visual acuity: new and complementary tests of visual function.
Visual acuity is an essential component of the routine ophthalmic examination and the most common measure of visual function. There is increasing recognition, however, of the need to evaluate visual function beyond the limited extent afforded by visual acuity. The primary objective of this article is to introduce a variety of new and lesser-used techniques for measuring visual function that complement visual acuity assessment, each of which has been shown to detect visual dysfunction in patients with normal visual acuity.
Trick
Gary L
GL
Visual Diagnostic Service, Department of Eye Care Services, Henry Ford Health Center, 2799 West Grand Boulevard, Detroit, MI 48202, USA. gltrick1@aol.com
D003118:Color Perception / Q000502:physiology; D003117:Color Vision Defects / Q000209:etiology; D015350:Contrast Sensitivity / Q000502:physiology; D004596:Electroretinography; D005074:Evoked Potentials, Visual / Q000502:physiology; D006801:Humans; D009901:Optic Nerve Diseases / Q000150:complications / Q000503:physiopathology; D010786:Photoreceptor Cells / Q000502:physiology; D012164:Retinal Diseases / Q000150:complications; D013997:Time Factors; D014785:Vision, Ocular / Q000502:physiology*; D014792:Visual Acuity / Q000502:physiology*; D014794:Visual Fields / Q000502:physiology; D014795:Visual Pathways / Q000503:physiopathology; D014796:Visual Perception / Q000502:physiology