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Doctor insights on: All About Blindness

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Could you go blind from covering their eye(s?

Could you go blind from covering their eye(s?

Only if you are an: Infant, you could have a 'lazy eye' develop, if you keep it covered as it would be underdeveloped visually, but look normal from the outside. As an adult, you are safe! covering your eyes in either case won't produce blindness. Maybe just more restful sleep. ...Read more

Dr. Damien Luviano
61 doctors shared insights

Blindness (Definition)

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


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Could i be partly colour blind?

Could i be partly colour blind?

Yes: Color blindness (we call it deficiency) occurs in a variety of patterns with some having absolute inability to make some color discriminations and others having a moderate loss with poor ability to see the more subtle colors. ...Read more

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Could you go blind permanently?

Could you go blind permanently?

Yes: Many diseases can cause blindness. If you are concerned about this, visit an ophthalmologist on a regular basis. ...Read more

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What causes someone to go blind?

What causes someone to go blind?

TMTC: The reasons are too many to count. The most common causes in the developed world are diabetic eye disease, macular degeneration and glaucoma. ...Read more

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What would be the signs if I am going blind?

What would be the signs if I am going blind?

Get an eye exam: The term "blindness" can be interpreted in many different ways. Central vision can be impaired by a simple need for glasses, and the problem can be easily solved. Peripheral vision loss is more unusual, and typically does have an underlying cause of more significance. Only through an eye exam can a disease process by diagnosed and treated. ...Read more

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How would the blind (in the u.S.) know if they are receiving the correct change in bills?

How would the blind (in the u.S.) know if they are receiving the correct change in bills?

They dont: Here is the United States of america, we do not have a way to independently tell the difference between different denominations of paper currency. ...Read more

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What causes blindness?

What causes blindness?

Long list: Blindness can be legal (20/200 or less) or absolute (cannot see light even). Eyes can inherit problems, get infected, traumatized and develop a host of diseases which can lower the vision such as diabetes, glaucoma, cataracts, macular degeneration, etc. Take your pick. ...Read more

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What is the blind spot?

What is the blind spot?

The Optic Nerve: The part of the back of the eye where the optic nerve head leaves the eye to carry the message of vision to the brain has no rods or cones and therefore shows up in the visual field test as a "blind spot". ...Read more

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Can i be blind due to RA ?

Not likely: But possible. Usually dry eye iritis and steroid related cataracts. But rarely Plaquenil (hydroxychloroquine) retinal toxicity after 7-8 yrs of high doses. Eyemds monitor for this quite carefully every 6 months or so reducing the chance of blindness. ...Read more

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What is a color blind test?

What is a color blind test?

Testing device: These are a group of color vision recognition and confusion plates, discs and lights to determine the degree and type of color deficiency that is present in a test subject. Some are standard in ophthalmologists office and others are in laboratories. And some are available on line for anyone to test themselves. ...Read more

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Can adult blindness be cured?

Depends: What is the cause? Was the eye sighted earlier in life and developed vision loss? Was the eye injured or infected? Did it have surgery? Is there systemic disease.? So many questions: Ask your ophthalmologist for the answer and whether there is a possibility of vision to some degree. As you might guess some can be cured and others cannot. ...Read more

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Effects of being color blind?

Effects of being color blind?

Minor: Depending upon the degree of your deficiency, you will be able to function for most activities (for instance traffic lights are a color designed to be seen by the color deficient). Occupations with issues for you: painter, fruit grader, electronic assembly worker, gemology, appraiser, artist. Legal restrictions for police work, pilots, boat captains. ...Read more

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What diopter is legally blind?

What diopter is legally blind?

See below. : A person is considered to be legally blind if he or she has a best corrected vision of 20/200 in their best seeing eye. If an individual has a visual field of 20 degrees or (tunnel vision) they may also be considered legally blind. ...Read more

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What can be done for blindness?

What can be done for blindness?

Blindness: If an eye can not perceive light, then there is usually nothing that can be done to help. If the eye can see light or movement, then there may be something to be done to improve the vision. You need to see an eye doctor to determine the reason for the poor vision and to initiate appropriate therapy. ...Read more

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Do blind people dream at night?

Yes: 1.Dream sleep is intact inspite they don't see. 2 but they have is called a free-running type of circadian rhythm disorders as they don't have light stimulation to keep the same sleep-wake cycle. 3. So they tend to go to bed late regularly every few weeks and few week normal sleep cycle. But it is free running pattern. 4.Actigraphy is use for diagnosis. 4. Melatonin may be used. ...Read more

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What makes a person color blind?

Genetics: Several genes are responsible for allowing our retinas' receptors to record the different colors we see. Occasionally, someone develops a mutation that prevents some of the colors to be recorded. This makes differentiating certain shades or colors difficult. ...Read more

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Could roach spray make me blind?

Not likely: If sprayed in the eyes, it would likely cause irritation but not likely lead to blindness. ...Read more

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How many diabetics go blind now?

Some: Diabetes is famous for sugar dysfunction. A corollary of this is damage to the blood vessels in the back of the eye, termed diabetic retinopathy. This can cause vascular swelling, leakage, hemorrhage into the middle of the eye, and various degrees of visually disruptive scarring. Cumulatively these events, untreated, can lead to permanent vision loss. See your retinal specialist for control. ...Read more

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Signs of child being color blind?

Depends upon age: Obviously inability to distinguish between red / green colors. Some have trouble with blue/yellow. It does assume the child knows his colors. I am not aware of a condition where no colors are seen. These are usually specific to certain colors. ...Read more

Dr. Tim Conrad
440 doctors shared insights

Loss Of Vision (Definition)

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


Dr. Tim Conrad
637 doctors shared insights

Vision Loss (Definition)

Vision loss = ...Read more