Blind spot | Definition, Function, & Facts | Britannica
网页Blind spot, small portion of the visual field of each eye that corresponds to the position of the optic disk (also known as the optic nerve head) within the retina. There are no photoreceptors (i.e., rods and cones) in the optic disk, and, therefore, there is no image detection in this area.
Blind spot Definition & Meaning - Merriam-Webster
网页The meaning of BLIND SPOT is the small circular area at the back of the retina where the optic nerve enters the eyeball and which is devoid of rods and cones and is not sensitive to light —called also optic disc. How to use blind spot in a sentence.
What to Know About Blind Spots (Scotoma) - WebMD
网页2023年2月28日 · A scotoma is a blind spot in your vision, which is an area you cannot see. Blind spots may be small or large and can be temporary or permanent.
Scotoma (Blind Spot in Vision): Types, Causes & Treatment
网页2023年1月18日 · Scotoma (pronounced skuh-tow-muh) is the medical term for a visual field abnormality, or a blind spot. Most of these blind spots happen in one eye, but they can happen in both eyes . The retina is a layer at the back of your eye that converts light into electrical signals.
Blind Spot in Your Eye: Possible Causes & What to Do - Vision Center
网页2024年2月5日 · Everyone has a blind spot in their eye where the optic nerve connects to the retina, this is often referred to as a scotoma. Although it’s always there, most people don’t notice their normal blind spot.
Blind spot - All About Vision
网页2021年5月27日 · Every human eye has something called a blind spot. This natural blind spot is the place in the retina — the light-sensitive inner lining at the back of your eye — that doesn’t have any cells that respond to light. The blind spot sits in the part of your retina where the optic nerve exits the eye.
A Closer Look at Scotoma (Blind Spot in Vision) - Vision Center
网页2024年2月21日 · A scotoma is a blind spot in your field of vision. This condition may be temporary or permanent. Everyone has a pinhead-sized blind spot that occurs where the optic nerve enters the retina.
Blind spot (vision) - Wikipedia
网页A blind spot, scotoma, is an obscuration of the visual field. A particular blind spot known as the physiological blind spot, "blind point", or punctum caecum in medical literature, is the place in the visual field that corresponds to the lack of light-detecting photoreceptor cells on the optic disc of the retina where the optic nerve passes ...
Blind Spot - American Academy of Ophthalmology
网页Everyone has a spot in their retina where the optic nerve connects. In this area there are no light-sensitive cells so this part of your retina can’t see. We call this the blind spot.
Why Do I Have a Blind Spot in My Eye? - Healthline
网页2018年4月11日 · The blind spot is where the optic nerve and blood vessels leave the eyeball. The optic nerve is connected to the brain. It carries images to the brain, where they’re processed....
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