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Ophthalmic Physiol Opt. 2007 Mar;27(2):210-2.

Technical note: Pre-surgical anisometropia influences post-LASIK binocular mesopic contrast sensitivity function.

Author information

1
Laboratory of Vision Sciences and Applications, Departamento de Optica, Universidad de Granada, Granada, Spain. rganera@ugr.es

Abstract

PURPOSE:

To investigate if pre-surgical anisometropia influences the post-LASIK binocular mesopic contrast sensitivity function (CSF).

METHODS:

Pre- and post-surgical binocular CSF was measured for 54 patients under mesopic conditions. Data on visual acuity and corneal topography were also obtained.

RESULTS:

The binocular contrast sensitivity declined significantly (r = 0.86; p < 0.001) with increasing pre-surgical anisometropia. Post-surgical interocular differences in corneal asphericity were also associated with increasing pre-surgical anisometropia.

CONCLUSIONS:

Pre-surgical anisometropia may be indicative of a possible significant deterioration of post-surgical mesopic binocular CSF, and therefore should be taken into account before surgery in analysing the possible disadvantages and limitations of refractive surgery.

[Indexed for MEDLINE]

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