视力是指视网膜分辨影像的能力。视力的好坏由视网膜分辨影像能力的大小来判定，然而当眼的屈光介质（如角膜、晶体、玻璃体等）变得混浊或存在屈光不正（包括近视、远视、散光等）时，即使视网膜功能良好的眼视力仍会下降。眼的屈光介质混浊，可以使用手术来治疗，而屈光不正则需要用透镜来加以矫正。

视力，是指视网膜分辨影像的能力。

《视力》是2008年上映的美国电影，由Adam Ahlbrandt执导。小托尼·卢克，Clayton Haske等人主演。
《视力》讲述Jeffrey leads a quiet existence. Living in constant fear of being labeled a psychopath, Jeffrey constructs a complex world of denial. He is haunted by the spirits of the vengeful dead, which he can see while no one else can. After meeting Dana, a beautiful young woman who shares his "sight", Jeffery finds comfort in knowing someone shares his affliction. But his comfort is short lived. Dana suddenly goes missing and Jeffrey is left alone to find the answers.