Doctor insights on:
Blindness And Crying
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
If I have a blind spot in my right eye, could it be treated (medicine/surgery)? Does working with computers/reading/crying. Etc, make it worse?
Depends on what the: Blind spot is. Everyone has a blind spot, but their brains are unaware of this blind spot. I assume this is not the blind spot you're talking about. If you actually see a blind spot in your vision, then you need to see and ophthalmologist immediately. Some of those things can be treated, but some of them cannot. You just want to make sure that it is something that's not going to get larger. ...Read more
Blindness: Self induced blindness is very rare and may be associated with mental illness. Pressure on the eyes can result in central retinal artery occlusion. Not controlling blood sugars in diabetes and not controlling hypertension can result in self inflicted blindness. The real question is why would anyone make themselves blind? Psychiatric care should be considered. ...Read more
Testing: The most common type of "color blindness" is red-green color deficiency. Blue-yellow deficiency or true color blindness (achromatopsia) are rare. Color testing can identify which. The problem is a lack of certain types of cones or their opsins (light-sensitive compounds). Red-green deficiency can be adapted to fairly easily and is not very limiting, but the others can significantly impact vision. ...Read more
Depends: A common source of such phenomena is alterations in the health and architecture of the macula, the area of central sharp vision. This can last a long time. Temporary changes can occur due to migraines and vascular changes. There are many other causes so if this is occurring, see your ophthalmologist for diagnosis. ...Read more
Of course: Sadly people go blind from injury, strokes, intrinsic eye disease, inherited eye disease and other factors. When this happens you need an answer as to why and whether it is reversible from your ophthalmologist. Otherwise, if permanent, then you will need assistance for the blind from the proper organizations. ...Read more
Or less in the "better eye"...There are recent "refinements" as to what measurement device is used
You would best be seen by a Board Certified Opthamologist for a better definition and or Diagnosis!
Hope this helps!
Dr Z ...Read more
Assist the blind: The va hospitals have rehabilitation programs for a variety of dysfunctions and blindness is one of the core programs. Your va ophthalmologist can direct you to this assistance which is a valuable part of their program. ...Read more
Vision loss: Bindness is a spectrum from loss of all light perception (total blindness), to varying degrees of loss meeting legal standards - vision lower than 20/200 or a visual field less than 10 degrees in extent. The causes vary - some are reversible, some treatable to prevent worsening, and some permanent. Your ophthalmologist should see you to evaluate your category and treat if possible. ...Read more
It's not: Technically, statutory blindness is a vision of 20/200 or worse with your best corrected vision. There is no limit to the strength of your corrective lenses as long as they can get your vision better than 20/200. Some states additionally define blindness as a severe restriction of the visual field, even with 20/20 vision and no glasses. ...Read more
Depends: Legal blindness has several definitions with some variation depending upon the state and the agency in question. Generally a corrected vision of 20/200 or less is legal blindness such as for income tax purposes. Generally a field of vision of less than 10 degrees is legal blindness. All these definitions are bilateral - a blind eye next to a normal eye is not legal blindness. ...Read more
Not uncommon: Most elderly folks gradually lose their retinal rods, and slowly and steadily have trouble seeing at night, but a disorder called retinitis pigments could also cause "nyctalopia" (night blindness). There really is minimal help that can enhance decreased nitetime vision, although some patients swear that dietary intake of dark green leafy vegetables helps. ...Read more
Contraversial: “the news that a cholesterol-lowering drug could provide protection from the irreversible sight loss caused by glaucoma will be welcomed by those of us at risk of developing the condition in later life. However, further investigation is urgently needed before statins could be used in the future treatment of glaucoma.”. ...Read more
Protect eyes: Blindness occurs from trauma (wear safety glasses, avoid situations if possible leading to trauma - fireworks, accidents), from intrinsic disease such as retinal detachments or optic nerve problems, and vascular disease like diabetes. There are other causes, some inherited. Eat a good diet and have regular examinations by your ophthalmologist for the best protection. ...Read more
Yes: There is no driver's licensing testing or criteria that includes testing for color recognition. This includes commercial driver's licenses as well. Traffic lights are set with a spectrum that the color deficient will not make a mistake. So ---- the color blind can drive. ...Read more
Yes: Lasers are classified depending on the power and usage of the laser. Most lasers, like the ones that scan your groceries, do not have enough power to cause damage to eyes. Other lasers, such as those used in medicine and in the military, can definitely damage tissue including eyes. ...Read more
No evidence of this: There is no evidence that being overweight can directly lead to blindness or is a risk factor for blindness. It is true that obesity can cause disbetese and increases risk of other conditions which may lead to blindness if not treated appropriately. But obesity does not cause Blindness directly ...Read more
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