Red reflex
Red Reflex
The Red Reflex (/rɛd ˈriːflɛks/) is a medical term used in ophthalmology to describe the reddish-orange reflection of light from the back of the eye, or retina, observed during direct ophthalmoscopy.
Etymology
The term "Red Reflex" originates from the reddish-orange color of the reflection observed, which is caused by the rich blood supply of the choroid, a layer of blood vessels in the eye, and the retinal pigment epithelium.
Examination
The Red Reflex test is a routine screening examination performed by pediatricians, family physicians, and ophthalmologists to check for abnormalities in the eye. It is typically conducted using an ophthalmoscope, a medical device used to view the interior of the eye.
Abnormal Red Reflex
An abnormal Red Reflex can indicate a number of eye diseases and conditions, including cataract, glaucoma, retinoblastoma, and retinal detachment. Early detection of these conditions through Red Reflex testing can lead to early treatment and potentially prevent vision loss.
Related Terms
- Ophthalmoscope: A medical device used to view the interior of the eye.
- Retina: The light-sensitive layer of tissue at the back of the inner eye.
- Choroid: A layer of blood vessels and connective tissue in the eye.
- Cataract: A clouding of the lens in the eye leading to a decrease in vision.
- Glaucoma: A group of eye conditions that damage the optic nerve.
- Retinoblastoma: A rare form of eye cancer that begins in the retina.
- Retinal Detachment: A medical emergency where the retina is pulled away from its normal position.
External links
- Medical encyclopedia article on Red reflex
- Wikipedia's article - Red reflex
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