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The first known case of published recovery from blindness is often stated to be that described in a 1728 report of a blind 13-year-old boy operated by William Cheselden. [5] Cheselden presented the celebrated case of the boy of thirteen who was supposed to have gained his sight after couching of congenital cataracts.
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]
The risk of retinal detachment is the greatest in the first 6 weeks following a vitreous detachment, but can occur over 3 months after the event.. The risk of retinal tears and detachment associated with vitreous detachment is higher in patients with myopic retinal degeneration, lattice degeneration, and a familial or personal history of previous retinal tears/detachment.
The incidence of age-related macular degeneration and its associated features increases with age and is low in people <55 years of age. [101] Smoking is the strongest modifiable risk factor. [ 102 ] As of 2008, age-related macular degeneration accounts for more than 54% of all vision loss in the white population in the US. [ 103 ]
Central retinal artery occlusion: CRAO is characterized by painless, acute vision loss in one eye. [11] Central retinal vein occlusion: CRVO causes sudden, painless vision loss that can be mild to severe. [12] Branch retinal vein occlusion: sudden painless vision loss or visual field defect are the main symptom of BRVO. [13]
Surgically correct retinal detachment by scleral buckle or pars plana vitrectomy. [1] Prior to surgery, oral or topical anti glaucoma drugs may be used to reduce IOP. [1] After surgical correction of the retinal detachment, the condition resolves, aqueous cells disappear and IOP normalizes. [3] The condition is not responsive to corticosteroid ...
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.
Retinal detachment is a medical emergency that can cause permanent blindness and thus requires urgent intervention. [ 10 ] Babies who are born prematurely (formally defined as 37 weeks of gestational age or earlier) are at higher risk of developing retinopathy of prematurity.
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