https://wikimd.org/index.php?action=history&feed=atom&title=Blind_spot 2026-04-27T02:31:06Z Revision history for this page on the wiki MediaWiki 1.44.2 https://wikimd.org/index.php?title=Blind_spot&diff=5353836&oldid=prev 2024-03-03T17:44:35Z

<p>CSV import</p> <p><b>New page</b></p><div>&#039;&#039;&#039;Blind Spot&#039;&#039;&#039; refers to an area in the visual field, which corresponds to the location of the [[optic disc]] (also known as the optic nerve head) within the [[retina]]. There are no [[photoreceptor cells]] (rods or cones) in the optic disc, and, therefore, it is not sensitive to light. This results in a blind spot in the visual field.<br /> <br /> ==Anatomy and Physiology==<br /> <br /> The [[human eye]] has a blind spot on the [[retina]] where the [[optic nerve]] and [[blood vessels]] leave the eye. This area, also known as the optic disc, lacks [[photoreceptor cells]] and is, therefore, insensitive to light. It is approximately 15 degrees temporal and slightly below the horizontal midline.<br /> <br /> ==Detection and Measurement==<br /> <br /> The phenomenon of the blind spot can be demonstrated with a simple experiment. By drawing two dots on a piece of paper, and closing one eye, when you slowly move the paper closer or further away, at a certain distance one of the dots will disappear from view.<br /> <br /> ==Clinical Significance==<br /> <br /> In clinical practice, the blind spot is important in diseases such as [[glaucoma]], where increased pressure within the eye can lead to enlargement of the blind spot. This can be detected on [[visual field testing]].<br /> <br /> ==In Popular Culture==<br /> <br /> The concept of the blind spot has been used metaphorically in psychology, referring to an individual&#039;s lack of self-awareness about a certain area of their personality or behavior.<br /> <br /> ==See Also==<br /> * [[Visual field]]<br /> * [[Optic disc]]<br /> * [[Photoreceptor cells]]<br /> * [[Glaucoma]]<br /> <br /> ==References==<br /> <br /> {{reflist}}<br /> <br /> [[Category:Eye]]<br /> [[Category:Vision]]<br /> [[Category:Anatomy]]<br /> [[Category:Physiology]]<br /> {{Eye-stub}}</div>

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