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Biomedical subjects

L Kowal

Publications and source records attributed to L Kowal.

15 recordsLinked to original sources

Ophthalmic manifestations of head injury.

Head injuries are frequently associated with ophthalmic problems. The commonest problems seen in this series of 161 patients with head injury were problems with poor accommodation (16% of patients; 58% of these persisted), convergence (14% of patients; 35% of these persisted), pseudomyopia (19%; 55% persisted) and optic atrophy (26% of the patients; 78% of these were mild and easily missed on routine testing, and 22% were severe). Motility disorders were common, especially cranial nerve palsies. Other less frequent motility disturbances included apparent inferior oblique palsy, comitant esotropia, and exotropia which was often of the convergence insufficiency type.

Adolescent

Arterial macroaneurysm of the optic disc.

A 64-year-old man presented with an arterial macroaneurysm on the optic disc, an unusual location for retinal arterial macroaneurysm. The macroaneurysm resolved spontaneously without sequelae.

Aneurysm

Headaches and the ophthalmologist.

Many patients are referred to an ophthalmologist because of headaches. If the headaches are provoked by visual activity, the ophthalmologist can often treat the patient. An approach to assessing the larger number of headache patients without visual problems is presented.

Headache

Botulinum toxin.

Explore the source record for details and available documents.

Abducens Nerve Injury

Appendiceal filling by double-contrast barium enema.

The barium enema is a safe and useful diagnostic modality in the evaluation of patients with suspected acute appendicitis. Complete appendiceal filling with barium virtually excludes this diagnosis. Frequently positive diagnostic information is obtained. Only 1 study in the literature documents the frequency of normal appendiceal filling by barium enema. The authors utilized the single-contrast technique. We recorded the frequency of normal appendiceal filling with the double-contrast technique and then compared our data with the previously published study to determine if there is a significant clinical disadvantage to the double-contrast technique when acute appendicitis is a diagnostic consideration.

Acute Disease