PubMed Health⌕ Search

Biomedical subjects

T P Fejer

Publications and source records attributed to T P Fejer.

3 recordsLinked to original sources
PubMed1995

Correction of night myopia and glare for night driving.

OBJECTIVE: To assess the effectiveness of treating night myopia. SETTING: Ophthalmic practice in Toronto. PATIENTS: Sixty-one patients aged 18 to 60 years with night myopia and no ocular disease followed for 1 to 14 months (phase 2). Phase 1 (32 patients) was abandoned because of problems with the tint chosen. INTERVENTIONS: Assessment of night myopia with a laser speckle generator, prescription of minus lenses with or without a tint. MAIN OUTCOME MEASURES: Magnitude of night myopia, subjective change in symptoms of night myopia. RESULTS: Nineteen patients (31%) could not benefit from minus or tinted lenses, and eight were lost to follow-up. Of the remaining 34 patients 22 (65%) reported marked improvement in night driving, 9 (26%) had moderate improvement and 3 (9%) had minimal improvement. CONCLUSIONS: Many patients with night driving difficulties can be helped with an increased myopic correction worn at night.

Adolescent↗
PubMed1992

Night myopia: implications for the young driver.

A total of 380 randomly selected patients aged 16 to 80 years who did not have eye disease underwent testing for night myopia between August and October 1989 with a laser speckle generator under both photopic and scotopic conditions. For the first 308 subjects the speckles were continuously run, and for the next 72 subjects a timer was used to minimize the accommodative stimulus. An increase in myopia of 0.75 dioptres or more from the photopic to the scotopic state, equivalent to a visual acuity of 20/45 or less, was considered indicative of night myopia. Overall, 17% of the subjects were found to have night myopia. Of the 26 subjects aged 16 to 25 years in the timer group 38% had night myopia of 0.75 D or more, 23% had night myopia of 1.00 D or more, and 4% had night myopia of 2.50 D, which is equivalent to an acuity of 20/265. The results indicate that driving in the dark could create visual difficulties for certain younger patients that a night myopic correction would eliminate.

Adolescent↗