Age-related macular degeneration: filter lenses help in certain situations.
OBJECTIVE
To investigate the ability of different filter lenses to enhance the contrast sensitivity of patients with age-related macular degeneration (AMD).


METHODS
A total of 32 patients with non-exudative AMD and no other significant eye diseases underwent the study tests using their optimal correction. We used Hyvärinen's contrast sensitivity tests with 100%, 10%, 5%, 2.5% and 1.25% charts. All the tests were made without filter lenses and with the Corning 527 and LVI 527 lenses.


RESULTS
With the 100% charts, there was a slight tendency towards contrast sensitivity improvement with LVI filter lenses, but the degree of improvement was not statistically significant. With the 10% charts, contrast sensitivity improved significantly with LVI 527 filter lenses, but not with Corning 527 lenses. It was not possible to perform statistical analyses of the results with the 5%, 2.5% and 1.25% charts.


CONCLUSIONS
Use of LVI filter lenses may improve contrast sensitivity in certain situations in patients with AMD.
D000368:Aged; D000369:Aged, 80 and over; D015350:Contrast Sensitivity; D004867:Equipment Design; D005139:Eyeglasses; D005260:Female; D005374:Filtration / Q000295:instrumentation*; D006801:Humans; D008268:Macular Degeneration / Q000503:physiopathology* / Q000628:therapy*; D008297:Male; D014787:Vision Tests