Bjerrum, Jannik P.
Bjerrum,Jannik P., Danish ophthalmologist, 1851-1926.
Bjerrum scotoma - a comet-shaped scotoma, occurring in glaucoma. Synonym(s): Bjerrum sign; sickle scotoma
Bjerrum screen - a flat, usually black surface used to measure the central 30 degrees of the field of vision. Synonym(s): tangent screen
Bjerrum sign - Synonym(s): Bjerrum scotoma