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Biomedical subjects

G W Lazenby

Publications and source records attributed to G W Lazenby.

5 recordsLinked to original sources
PubMed1981

The use of sodium hyaluronate (Healon) in intracapsular cataract extraction with insertion of anterior chamber intraocular lenses.

Intracapsular cataract extraction with insertion of anterior chamber intraocular lens was carried out on 40 subjects. In 21 procedures, balanced salt solution or air was used to deepen the anterior chamber. In 19 procedures, Hyaluronic Acid (Healon) was used to deepen the anterior chamber. In the two groups, no significant difference was noted in the endothelial cell count or in the corneal thickness. The surgeon felt that Healon made the surgery much easier, gave better control and greatly decreased the possibility of serious complications.

Anterior Chamber↗
PubMed1977

Glare sensitivity in corrected aphakes.

Groups of elderly aphakic patients treated with contact lenses, spectacles and intraocular lenses, as well as elderly phakic patients, all with good visual acuity were tested for glare sensitivity. All groups showed comparable glare sensitivity. However, aphakic patients with lesn material, or postop membranes in the the pupil area, were statistically more glare sensitive. These membranes occur when the cataract extraction is extracapsular in nature. Finally, the study shows that measurement of visual acuity in the typical examination room environment does not accurately describe the manner in which the patient visually functions in a bright, glare laden environment.

Aged↗