IngentaConnect Age-related macular degeneration: filter lenses help in certain s...

Authors: Langagergaard, Ulrich¹; Ganer, Hans Jørgen²; Baggesen, Kirsten

Source: Acta Ophthalmologica Scandinavica, Volume 81, Number 5, October 2003 , pp. 455-458(4)

Abstract:

. Purpose:

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. Conclusion:

Use of LVI filter lenses may improve contrast sensitivity in certain situations in patients with AMD.

Keywords: age-related macular degeneration; filter lenses; Corning photo chromic filters; LVI; visual acuity; contrast sensitivity; low vision

Document Type: Research article

DOI: 10.1034/j.1600-0420.2003.00142.x

Affiliations: 1: Department of Ophthalmology, Aalborg Hospital, Aalborg, Denmark 2: Synsinstituttet, Aalborg, Denmark

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Age-related macular degeneration: filter lenses help in certain situations