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

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.

• Authors: Rosario G Anera, José R Jiménez, César Villa, Francisco Rodríguez-Marín, Ramón Gutiérrez
• Journal: Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) (Ophthalmic Physiol Opt) Vol. 27 Issue 2 Pg. 210-2 (Mar 2007) ISSN: 0275-5408 [Print] England
• PMID: 17324212 (Publication Type: Journal Article)

Topics

• Adult
• Anisometropia (surgery)
• Contrast Sensitivity (physiology)
• Cornea (surgery)
• Humans
• Keratomileusis, Laser In Situ
• Vision, Binocular (physiology)