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Archivos de la Sociedad Española de Oftalmología

versión impresa ISSN 0365-6691


GOMEZ-DE-LIANO-SANCHEZ, R.; PIEDRAHITA-ALONSO, E.  y  ARIAS-PUENTE, A.. Binocular vision following refractive surgery in hyperopic patients. Arch Soc Esp Oftalmol [online]. 2006, vol.81, n.2, pp.107-113. ISSN 0365-6691.

Purpose: To evaluate the changes in binocular vision and ocular motility in hyperopic patients undergoing refractive surgery. Methods: Prospective study of 31 consecutive patients who underwent bilateral refractive surgery for hyperopia between May 1999 and February 2002. The examination included best-corrected visual acuity, cycloplegic refraction, ocular motility, fusion at distance, stereopsis and fusional amplitudes, before and at one month, 3 months, 6 months, one year after surgery and annually thereafter. Results: After refractive surgery, there were changes in visual acuity, residual hyperopic refractive errors, and anisometropic changes that influenced the oculomotor status. The most frequent sensory modifications were suppression at distance, with much less change in stereopsis. From the point of view of ocular motility, we found a significant tendency to esotropia in strabismic patients (p=0.003). In non-strabismic patients, we also found sensorimotor modifications, but of less intensity and with fewer consequences than in strabismic patients. Sensorial and/or motor decompensation appeared in 25% of strabismic patients, and asthenopia symptoms developed in 28.7% in the same group. Conclusions: Slight binocular modifications with no symptomatic consequences were found in patients with normal binocular vision. However ocular motility was modified towards esotropia in strabismic patients, binocular decompensation appeared in 25%, and 28.7% of them suffered from asthenopia.

Palabras clave : Binocular vision; refractive surgery; hyperopia; stereopsis; strabismus.

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