Technical note: Pre-surgical anisometropia influences post-LASIK binocular mesopic contrast sensitivity function.
OBJECTIVE
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.
Anera
Rosario G
RG
Laboratory of Vision Sciences and Applications, Departamento de Optica, Universidad de Granada, Granada, Spain. rganera@ugr.es
Jiménez
José R
JR
Villa
César
C
Rodríguez-Marín
Francisco
F
Gutiérrez
Ramón
R
D000328:Adult; D015858:Anisometropia / Q000601:surgery*; D015350:Contrast Sensitivity / Q000502:physiology*; D003315:Cornea / Q000601:surgery*; D006801:Humans; D020731:Keratomileusis, Laser In Situ; D015348:Vision, Binocular / Q000502:physiology*