| blinded study | Clinical trials of drugs are often done blinded so that the patient does not know (is blinded as to) whether they are receiving the product being tested or the control/placebo to ensure that the results of a study are not affected by a possible placebo effect (by the power of suggestion). (12 Dec 1998) |
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| blindfish | <marine biology> A small fish (Amblyopsis spelaeus) destitute of eyes, found in the waters of the Mammoth Cave, in Kentucky. Related fishes from other caves take the same name. Source: Websters Dictionary (01 Mar 1998) |
| blinding disease | Infection with nematodes of the genus onchocerca. Characteristics include the presence of firm subcutaneous nodules filled with adult worms, pruritus, and ocular lesions. (12 Dec 1998) |
| blinding glare | Glare resulting from excessive illumination. Synonym: veiling glare. (05 Mar 2000) |
| blindness | The inability to see or the loss or absence of perception of visual stimuli. This condition may be the result of disorders in the organs of sight or of damage or injury to certain areas of the brain. (12 Dec 1998) |
| blindness, cortical | Total loss of vision in all or part of the visual field due to a lesion in the striate area, characterised by the patient's subjective unawareness of his disability and the absence of cortical functions of vision, with the subcortical functions intact. (12 Dec 1998) |
| blindworm | <zoology> A small, burrowing, snakelike, limbless lizard (Anguis fragilis), with minute eyes, popularly believed to be blind; the slowworm; formerly a name for the adder. "Newts and blindworms do no wrong." (Shak) Source: Websters Dictionary (01 Mar 1998) |