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Biomedical subjects

R M Burde

Publications and source records attributed to R M Burde.

At least 127 records · Page 7Linked to original sources

Minimizing corneal endothelial damage due to intraocular lens contact.

Previous studies have shown that momentary contact between a methylmethacrylate intraocular lens and the corneal endothelial cells results in extensive cell damage. This contact damage is reduced by coating the pseudophake with various solutions prior to contact with the endothelium.

Cornea↗

Relative afferent pupillary defect in glaucoma.

Seven patients with asymmetrical open-angle glaucoma had relative afferent pupillary defects. This defect may have occurred during any stage of glaucoma, but the presence of this sign may be indicative of the earliest onset of optic nerve damage in patients with ocular hypertension. Although the presence of an afferent pupillary defect should suggest the consideration of a neurologic lesion, glaucomatous damage may be the sole explanation for this phenomenon.

Adult↗

Serum factors precipitating with bovine lens extract in cataract patients and noncataract patients.

The present study tested the assertion that there exists exclusively in persons with senile cataracts a serum factor capable of precipitating with gamma crystallin extract from bovine lens. The results of this work do not support this assertion without the imposition of rigid specifications regarding test solution concentrations and observation time. Among the 84 subjects tested, 2 individuals had posterior subcapsular cataracts. The precipitates resulting from incubation with serum from these individuals were similar to those resulting from incubations with serum from senile cataract patients. The present study did not confirm the existence of exclusive serum factors capable of precipitating with gamma crystallin extract in patients with senile cataracts.

Adult↗

Visual parameters associated with recovered retrobulbar optic neuritis.

Visual acuity, color vision, pupillary reaction, induced Pulfrich phenomenon, kinetic fields, static fields, afterimage testing, and ophthalmoscopic evaluation were studied in nine patients with a history of retrobulbar neuritis. The most consistently reliable test for determining the presence of an old optic nerve defect in these patients was meridional 0 to 180 degrees static perimetry. There was a uniform decrease in brightness discrimination to either side of the foveal peak.

Accommodation, Ocular↗

Ocular motor dysfunction in total and hemicerebellectomized monkeys.

Studies of ocular motor function in monkeys undergoing either total or hemicerebellectomies has revealed the following abnormalities which can be attributed to cerebellar dysfunction: 1. Loss of smooth pursuit movements 2. Gaze-fixation nystagmus 3. Loss of inhibitory input on the vestibular apparatus reflected in a decreased latency and prolonged response to caloric stimuli. It is intimated that the role of the hemicerebellum deals with ipsilateral tone and its effect on eye movements.

Animals↗

Bell's palsy and intraocular pressure.

A prospective study was established to test the effect of orbicularis tone on intraocular pressure. Local nerve block of the 7th cranial nerve by either the methods of Van Lint or O'Brien and Atkinson revealed no effect on the measured intraocular pressure.

Facial Paralysis↗