Top
10
Doctor insights on: How Are The Eye Doctors Test For Color Blindness

Share
1

1
How are the eye doctors test for color blindness?

How are the eye doctors test for color blindness?

Color charts: Most eye doctors own an ishihara color vision test booklet which can be used to determine if you are color deficient. There are other booklets as well, color caps, and other more sophisticated means to determine the degree and type of color deficiency you might have. ...Read more

See 2 more doctor answers
Dr. Damien Luviano
50 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


2

2
Which type of tests would an eye doctor do to tell if someone is color blind?

Which type of tests would an eye doctor do to tell if someone is color blind?

Color vision tests: The most common is the ishihara color vision test, where there are a series of pages which have numbers created with dots of different colors. Those with good color vision seen one number, and those with color blindness see a different number. ...Read more

3

3
If a bullet grazed your face close to the eye, could it make you color blind?

No: Color deficiency comes from inherited defects in the photoreceptors, or massive retinal loss from retinal illness (like advanced diabetes) , optic nerve disease or rare strokes in the cerebral cortex affecting color. The bullet passage you described cannot be a cause. ...Read more

5

5
I have frequents headaches, I went to the eye doctor since I'm almost blind to find out if my eyes where the cause and twice the answer was no. My regular docor did blood test on me and the inly thing that came up inrregular was Vitamin D defficiency whic

I have frequents headaches, I went to the eye doctor since I'm almost blind to find out if my eyes where the cause and twice the answer was no. My regular docor did blood test on me and the inly thing that came up inrregular was Vitamin D defficiency whic

D def possible cause: I recommend a neurologiy consult to evaluate headaches. We have learned much about vitamin D function irecently-- important in many metabolic pathways. Replenishing adipose tissue stores must occur before serum levels rise, sometimes taking more than 6 months. The morbidly obese may need 3 times the usual dose. 10,000 iu Vit D3 caps are inexpensive. Do not sunbathe! Unnecessary and carcinogenic ...Read more

See 1 more doctor answer
6

6
Before the color blindness test, how did doctors determine if people were color blind?

Before the color blindness test, how did doctors determine if people were color blind?

They asked them.: Since the color blindness tests have been around for at least a few hundred years, an ancient physician would just have had to ask. ...Read more

7

7
Hi doctors, was just wondering what is coreal- transplant can it restore the eye sight of a person who is partially blind?

Hi doctors, was just wondering what is coreal- transplant can it restore the eye sight of a person who is partially blind?

Sometimes: Corneal transplantation is the surgery in which a diseased cornea (the window at the front of the eye) is removed and replaced with a donor cornea. In eyes otherwise normal, with the cornea being the only block to good vision, the procedure can be remarkably vision improving. If the eye sees poorly from something else, than this will not work. ...Read more

8

8
If the eye doc. Finds a tear in the retina on time can he prevent blindness or is it to late?

Retinal tear: Retinal tears can almost always be successfully treated with either laser or cryopexy (freezing) treatment. This will usually prevent progression to retinal detachment which usually requires more invasive surgical treatment. ...Read more

See 2 more doctor answers
10

10
I have an astigmatism in my right eye , the eye doctor said only need to wear my glasses at night when I'm driving Can I get lazy eye or blind worried?

I have an astigmatism in my right eye , the eye doctor said only need to wear my glasses at night when I'm driving Can I get lazy eye or blind worried?

No: You obviously have a very minor astigmatism. Many people, some of the nicest and brightest (inc. me, ahem!) have much worse astigmatism which is correctable with glasses. It does not cause lazy eye or blindness. ...Read more

See 1 more doctor answer
Dr. Lawrence Kale
99 doctors shared insights

Color Blindness (Definition)

Color blindness is a condition where an individual has a decreased ability or complete inability to detect differences between various colors. For example, red-green color blindness is the inability to distinguish between ...Read more


Dr. David Chandler
75 doctors shared insights

Color Blind (Definition)

Color differentiation difficulties are where a person has trouble distinguishing the difference between certain colors. One of the most common difficulties involves difficulty telling apart the ...Read more