blind (redirected from as blind as a bat)
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1. not having the sense of sight.
pertaining to an experiment in which one or more of the groups receiving, administering, and evaluating treatment are unaware of which treatment any particular recipient is getting. See single blind
, double blind
, and triple blind
Unable to see; without useful sight. See: blindness
1. 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).
2. Unable to see; sightless.
3. Relating to or for sightless persons.
4. Closed at one end, as a tube or sac.
5. Performed or administered without the benefit of background information that might prejudice the outcome or result.
(1) Referring to the inability to see.
(2) Not well marked or easily discernible; hidden; unseen; concealed (as in one’s “blind spot”).
(3) Lacking openings for light or passage; open only at one end, as in the “blind gut” or cecum.
adverb Without clear vision; unaware.
noun Something that obstructs of prevents theability to see;.
(1) To make blind; to deprive of vision or discernment.
(2) To darken; to obscure to the eye or understanding; to conceal; to deceive.
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.
Unable to see; without useful sight.
Patient discussion about blind
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.More discussions about blind
are those the reason of your blindness?