| 释义 |
Bjerrum scotoma Bjer·rum sco·to·ma (byer'ūm), a comet-shaped scotoma, occurring in glaucoma, attached at the temporal end to the blind spot or separated from it by a narrow gap; the defect widens as it extends above and nasally curves around the fixation spot, and then extends downward to end exactly at the nasal horizontal meridian. Synonym(s): Bjerrum sign, sickle scotomaBjer·rum sco·to·ma (byer'ūm skō-tō'mă) A scotoma shaped like a comet's tail; occurs in glaucoma, attached at the temporal end to the blind spot or separated from it by a narrow gap; the defect widens as it extends above and nasally curves around the fixation spot, and then extends downward to end exactly at the nasal horizontal meridian. Bjerrum scotomaA sickle- or comet-shaped blind spot usually found in the central zone of the visual field; seen in glaucoma. See also: Bjerrum, Jannik PetersenBjerrum, Jannik P., Danish ophthalmologist, 1851-1926. Bjerrum scotoma - a comet-shaped scotoma, occurring in glaucoma. Synonym(s): Bjerrum sign; sickle scotomaBjerrum scotometerBjerrum screen - a flat, usually black surface used to measure the central 30 degrees of the field of vision. Synonym(s): tangent screenBjerrum sign - Synonym(s): Bjerrum scotoma |