Doctor insights on:
Does Typhoid Cause Blindness
Many causes: Loss of vision can be associated with macular degeneration, ischemic optic neuropathy, cataracts, trauma, hereditary problems such as retinitis pigmentosa, and a host of inflammatory and infectious conditions. One of our ophthalmologists could certainly expand upon this answer, and referral will be made.
Vision impairment and blindness are conditions in which a person cannot see well or see at all, even with glasses or contact lenses. If a person's best vision (with correction) out of either eye is only 20/70 - 20/200, he is impaired. If he can see no better than 20/200 or his visual field is no more than 20 degrees (severe "tunnel" vision), ...Read more
Many causes: There are a large number of causes of sudden blindness. Here, I assume that you mean total vision loss of one eye. Causes include a retinal artery occlusion, giant cell arteritis, retinal detachment, ischemic optic neuropathy, stroke, optic neuritis, acute glaucoma, vitreous hemorrhage, poisoning (methyl alcohol), and trauma. Bilateral loss is rare: occipital stroke, pituitary apoplexy.
Multiple: Vision can be suddenly lost from direct trauma, acute glaucoma, vascular occlusion in the back of the eye, retinal detachment, acute bleeding in the eye, optic nerve disease and strokes in the visual cortex. There are other rarer causes. If someone loses vision in this way they should get to an ophthalmologist or an er immediately.
Cataract: The most common cause of visual deterioration is cataract., nearly 50% of all causes. Treatable with surgery. Second is glaucoma (about 12%), preventable with early detection. Detection and treatment are more prevalent in developed countries. Third is probably macular degeneration, often not treatable.
Possibly: Lowered vision is the rule with microcornea. It might require very high powered glasses. If the rest of the eye is normal than useful vision should be possible but if the eye is internally deformed then vision may be profoundly disturbed. A pediatric ophthalmologist should be consulted in such a case.
Unlikely: Ortho k is a sort of a way for optoms to get into the eye power changing game which really is dominated by the more effective lasik. It puts a hard contact lens that is too flat onto the eye, pushing it back to remold it. This is of course a bit uncomfortable. There is a tiny risk of corneal breakdown and/or infection but monitoring is generally good. Lasik is a much better option.
Inherited Disease: Retinitis pigmentosa is a group of inherited disorders that cause degeneration of the retina and vision loss. The condition can be inherited in multiple ways and has a variety of symptoms. The most common ones are night blindness and gradual loss of peripheral vision. There is currently no proven treatment, however gene therapy is being explored as a possibility.See 1 more doctor answer
Too much oxygen: In the old days high doses of pure oxygen were given to prematures to keep them pink. Many ended up blind. Over time it became apparent that it was the fault of the oxygen. The retina is full of tiny blood vessels that go into spasm and may leak blood. Careful monitoring of the retina and treatment has improved outcome. Also, the bright light used for bilirubin can be harmful.
Vit A deficiency, etc: Children in africa can be blinded by vitamin a deficiency, onchocerciasis, sometimes malaria, trachoma, injuries, congenital defects some of which might be corrected in a first world country like cataracts at birth, glaucoma, uveitis and a host of other conditions.See 1 more doctor answer
No known connection: Fibromyalgia specifically causes generalized muscle pain and fatigue. There is not an association between loss of visual ability or blindness and fibromyalgia. There are many different medications used to treat fibromyalgia and none cause blindness. Blindness, if temporary is more likely to be related to migraine. This is something else. If the vision loss in in one eye or just started dial 911.See 4 more doctor answers
Mostly genertic: In inherited color deficiency, a visual pigment has its spectrum of color reception altered to a small degree and to a large degree in those with high degree of this disorder. The photoreceptor count is the same, so the acuity is not lost - just the color recognition. There are a few less common color vision losses due to advanced retinal, optic nerve and CNS diseases.See 3 more doctor answers
Both can.: Sle is more likely to do this, albeit rare, because of vasculitis, or blood vessell inflammation affecting the optic nerve. Ra can do this, albeit very rare, when cryoglobulins are present. Cryoglobulins also cause vasculitis. And the treatment of both, with heavy dose steroids, can cause cataracts or worsen diabetes. Both cause blindness.See 1 more doctor answer
Possibilities: The eye's looking cloudy to an observer is usually due to corneal scarring or cataract.
Multiple: The back part of your brain, the occipital lobe is what 'sees' images, your eyes are just fancy attenaes transmitting the image to your occipital lobe. If there is anything wrong with the cortex of your occipital lobe, this is cortical blindness. Stroke, migraine, seizures, tumors, all can be problems.
Possible, not likely: Any eye surgery can result in loss of vision if poorly done, complicated or if aftercare is not adequate. Lasik demands proper patient selection. Not everyone is a good candidate. The incidence of poor outcome in present day lasik is very, very low and the outcomes are generally excellent!See 1 more doctor answer
Loss of vision reflects the inability to perceive images. Such a phenotype can be due to occlusive or barriers to light (e.g. cataracts) through retinal alterations (e.g. wet macular degeneration) to optic nerve lesions (e.g. from a pituitary adenoma) to central nervous system ...Read more
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