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Retinal detachment is a condition where the retina pulls away from the tissue underneath it. [1] [2] [3] It may start in a small area, but without quick treatment, it can spread across the entire retina, leading to serious vision loss and possibly blindness. [4] Retinal detachment is a medical emergency that requires surgery. [2] [3]
On funduscopic eye examination, the retinal vessels in early Coats' disease appear tortuous and dilated, mainly confined to the peripheral and temporal portions of retina. [2] In moderate to severe Coats' disease, massive retinal detachment and hemorrhage from the abnormal vessels may be seen.
Serious complications of cataract surgery include retinal detachment and endophthalmitis. [60] In both cases, patients notice a sudden decrease in vision. In endophthalmitis, patients often describe pain. Retinal detachment frequently presents with unilateral visual field defects, blurring of vision, flashes of light, or floating spots ...
Using a laser, an ophthalmologist burns the portions of the retina that are not supported by blood vessels, a technique known as laser photocoagulation. [1] By doing so, this tissue will no longer release molecules that stimulate blood vessel growth. If a retinal detachment occurs, laser therapy or surgery may be required to repair the retina ...
The American Academy of Ophthalmology notes though retinal detachment is associated with lattice degeneration, lattice degeneration is not as strongly associated with or predictive of retinal detachment, with one study finding a low overall risk of developing retinal detachment at around 0.3–0.5%. [2]
The quality of vision expected from a retinal implant is largely based on the maximum spatial resolution of the implant. Current prototypes of retinal implants are capable of providing low resolution, pixelated images. "State-of-the-art" retinal implants incorporate 60-100 channels, sufficient for basic object discrimination and recognition tasks.
The orange appearance of the normal fundus is due to complexes of vitamin A as 11-cis-retinal with opsin proteins in the retina (i.e., rhodopsin). The left image (right eye) shows lighter areas close to larger vessels, which is regarded as a normal finding in younger people.
Vitreoretinal traction or retinal detachment cause flashes, floaters or dark shadows. [10] Sudden loss of vision may occur due to retinal artery occlusion, vitreous hemorrhage or retinal detachment. Intravascular occlusions may be seen in optic disc vessels. [11]