blind (redirected from blind as a bat)

blind (blīnd) [A.S.]

1. not having the sense of sight.

2. pertaining to a clinical trial or other experiment in which one or more of the groups receiving, administering, and evaluating the treatment are unaware of which treatment any particular subject is receiving.

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blind (blnd)

adj.

1. Unable to see; without useful sight.

2. Having a maximal visual acuity of the better eye, after correction by refractive lenses, of one-tenth normal vision or less (20/200 or less on the Snellen test).

3. Of, relating to, or for sightless persons.

4. Closed at one end, as a tube or sac.

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blindness n.

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blind.

See blindness.

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blind

not having the sense of sight. See also blindness.

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double blind trial

an experiment in which the identity of the animals in the treatment and control groups is unknown to the experimenter and in addition the assessment of the results is done without the animals' identities being known to the experimenter. Called also blind study.

blind experiment

the identities of the animals that are in the treatment and the control groups are unknown to the experimenter until the end of the trial.

blind snakes

see typhlopid.

blind spot

the area marking the site of entrance of the optic nerve on the retina; it is not sensitive to light.

blind staggers

see dummy.

blind study

see double blind trial (above).

blind teat

see blind teat.

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blind 

Totally or partially unable to see.
blind spot See blind spot.
blind test See single-blind study; double-blind study.

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blind

Ophthalmology adjective 1. Referring to the inability to see 2. Not well marked or easily discernible; hidden; unseen; concealed 3. Lacking openings for light or passage; open only at one end; as in the 'blind gut' or cecum noun Inability to see; sightless verb 1. To make blind; to deprive of vision or discernment 2. To darken; to obscure to the eye or understanding; to conceal; to deceive

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Patient discussion about blind as a bat.

Q. Why is the color draining from my eyes?! When I was little I had rich shiny cobalt blue eyes! As I grew up they faded or just started to dim in color. Being partially blind you can see in my left eye the its a really light color and creamy instead of my deep blue color... Why does my eye color dim?! I didnt think going blind had anything to do with the color of my eyes changing... Or is it something else?! Please, and thank you!

A. depends on your blindness, if it is caused by your cornea changing (corneal opacity)- it'll change your eye color to a cloudy white. it can also be caused by cataract.
are those the reason of your blindness?