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Biomedical subjects

D G Cogan

Publications and source records attributed to D G Cogan.

135 records · Page 8Linked to original sources
PubMedDate not supplied

Ex Errato Lux. Concept and development of the Verhoeff Society.

With a history of 39 years, Verhoeff Society is one of the oldest subspecialty groups in ophthalmology. The society was formed to establish a forum to discuss ophthalmic pathology. This paper details the original inception of the Society, its current activities and its influence in the development of ophthalmic pathology clubs in the U.S. and across the world.

History, 20th Century↗
PubMedDate not supplied

Lest we forget: notes on reading Verhoeff's early correspondence.

Dr. Verhoeff's life and work are reexamined by the author in the light of his early correspondence. The letters remind us of the significant contributions of Dr. Verhoeff to ophthalmic pathology in America. His personal qualities, such as candor, ingenuity and intellectual honesty are recalled by his successor in the Howe Laboratory.

History, 20th Century↗
PubMedDate not supplied

Habitual head turning in spasmus nutans: an oculographic study.

Head turning in patients with spasmus nutans seems to transiently dampen the nystagmus. This was evident in two children by clinical observation and electrooculographic recording. The suppression of the nystagmus may have been mediated by the vestibular system.

Child, Preschool↗
PubMedDate not supplied

Near-evoked nystagmus in spasmus nutans.

Near-evoked nystagmus was evident in two children with spasmus nutans by clinical observation and electro-oculographic recording. In one child the nystagmus appeared to be evoked by fusional convergence and in the other by convergence-accommodation. These cases represent an atypical form of spasmus nutans in which the nystagmus is modulated by centers controlling visuomotor changes with near viewing.

Accommodation, Ocular↗