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J.R. Jimenez, R.G. Anera, V, F. Rodriguez–Marin, A. Garcia–Beltran; Pre–Surgery Anisometropia Influences Post–Lasik Binocular Performance . Invest. Ophthalmol. Vis. Sci. 2006;47(13):519.
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© ARVO (1962-2015); The Authors (2016-present)
To determine binocular factors that influence visual performance after LASIK.
We measured contrast–sensivity function (CSF) and disturbance index (for quantifying halos) before and after surgery in the mesopic level. Total aberrations, corneal–shape differences were also measured.
Binocular summation for CSF and disturbance index deteriorate significantly (p<0.01) after LASIK. This deterioration is correlated with the degree of initial anisometropia. An analysis of discrepancies between expected and real after–surgical cornea can be in the origin of this correlation.
Initial anisometropia diminish post–surgical visual performance. New approaches in optimizing refractive surgery should include binocular analysis. Further research should be done for obtaining the predicted after–surgery cornea in order to optimize binocular visual function.
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