Doctor insights on:
Retinal Pigmentation Causes
Many possible causes: As we age, the vitreous may pull away from its attachment to the retina at the back of the eye. If the vitreous pulls hard enough to tear the retina in one or more places, fluid may pass through, lifting the retina off the back of the eye, causing it to detach. Some risk factors for detachment are: nearsightedness, trauma to the eye or a family history of retinal detachment. ...Read more
Hole in Retina: An rd is usually caused by a hole or tear in the retina or from membranes pulling on the retina. When the retinal layer peels away from the eye wall (like wall paper), it is detached and vision is lost. Symptoms of an rd are painless vision loss, flashing lights, and floaters. You should immediately see an eye md if you have these symptoms. ...Read moreSee 1 more doctor answer
Uv rays: Medical answer - like many other types of cancer, we aren't quite sure what causes ocular melanoma, but there is suspicion that it is related to exposure to the uv rays of the sun. This theory has yet to be proven, however. Holistic answer interference field reflexing to eye - usually some sort of injury to liver since liver meridian travels into eye - might need coherence to energy field. ...Read moreSee 2 more doctor answers
Lack of eye pigment: Lack of eye pigment can be due to: genetics/inheritance; congenital condition called albinism characterized by the complete or partial absence of pigment in the skin, eyes and hair; lack of nerve innervation to iris (congential horner's syndrome); trauma; prior eye surgery. ...Read more
Detached Retina: It is actually a tractional retinal detachment. When diabetes causes the retinal blood vessels to die, the retina grows new blood vessels that are disorganized and of poor quality. They grow into the gel that fills the eye called the vitreous. This causes the vitreous to contract and pulls the retina off the back to the eye. That is a tractional retinal detachment. It often needs surgery. ...Read moreSee 2 more doctor answers
Age: The vitreous jelly changes as we age and it pulls away from the back of the eye (retina) - a posterior vitreous detachment. During this process, if the jelly pulls hard enough on the retina (especially in a thin or weak area) it can tear the retina which can subsequently detach. Other risk factors include myopia, cataract surgery, head/eye trauma, family history, lattice degeneration, etc. ...Read more
Lens fibers rub iris: When the supporting lens fibers (zonules) of the lens are anteriorly placed on the lens, they can rub against the back of the iris leading to scraping off pigment which then circulates through the front of the eye. Most this is an interesting anatomical happening but in some cases the pigment clogs the eye drains causing glaucoma. ...Read more
The Vitreous: The vitreous is composed of a clear liquid called hyaluronic acid and fibers called collagen. As we age the vitreous becomes less solid and the collagen fibers become more visible (synuresis). The spots you see are these collagen fiber clumps. They do not cause harm to the eye, they just get in the way. If they are very prominent and reduce visual function they can be removed with a vitrectomy. ...Read moreSee 2 more doctor answers
Why do post-cataract surgery retinal detachments occur? Is there some retinal pulling involved from posterior vitreous detachment (pvd)?
Destabilization: The natural lens and its supports stabilize the front of the eye and vitreous. Removal of the thick natural lens and substitution with a thin artificial lens, increases the chance for the vitreous to move in ways that can destabilize the attachments of the vitreous over the retina. If there are weak places, this can increase the chance of detachment, even in the best of cataract surgeries. ...Read moreSee 1 more doctor answer
Dark Circles: Circles under eye can be due to: allergy "allergic shiners", fatigue, genetic variation, aging. Lower lid skin is very thin so blood vessels under skin can make area look dark. Various topical remedies try to help but only mask the condition with no cure. What helps: drink 8 cups water/day, sunblock, hat, enough rest; avoid rubbing; makeup; facial plastic surgery when severe; allergist can hel. ...Read moreSee 1 more doctor answer
If lattice degeneration is area of atrophy of peripheral retinal pigment epithelium, can it be considered analogous to atrophy of skin epithelium?
Heterochromia of the: iris is not directly associated with RP. If the iris is affected it is usually due to an iritis (which can occur with RP). If you do notice lightening of the iris with your RP you should go to your ophthalmologist immediately since an untreated iritis can cause permanent damage. ...Read more
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