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Revista Cubana de Oftalmología
versión impresa ISSN 0864-2176
Resumen
ANDUJAR COBA, Patricia; LANTIGUA MALDONADO, Isabel C; GARCIA MARTIN, Marrel y FERNANDEZ GARCIA, Keyly. Monovision with Excimer laser surgery in presbyopic patients. Rev Cubana Oftalmol [online]. 2010, vol.23, suppl.2, pp.712-720. ISSN 0864-2176.
OBJECTIVES: To describe the refractive results achieved with Excimer laser surgery in presbyopic patients, both hyperopic and myopic, with monovision. METHODS: A prospective, longitudinal and descriptive study was performed on 60 presbyopic patients, 18 myopic and 42 hyperopic, who underwent Excimer laser surgery to correct presbyopia based on the monovision method at the Corneal and Refractive Surgery Service of «Ramón Pando Ferrer» Cuban Institute of Ophthalmology from February 2009 to February 2010. The variables used were pre- and post-operative visual acuity with correction, visual acuity without binocular correction, both near and distant, and spheral equivalents. For presenting this information, the mean and standard deviation were used for all variables. RESULTS: In the preoperative phase, it was observed that average visual acuity improved from 0,1 and 0,3 for myopic and hyperopic patients without correction, to 0,94 and 0,97 binocular visual acuity without correction for the same groups in the postoperative phase, thus correcting their average spherical equivalent of 4,63 D and +2,21 D respectively. Average near visual acuity for both groups was Jeager (J) 1 - 2 and average spheral equivalents reached for distant vision were 0,02 ± 0, 27 D for myopic and +0.09 ± 0,34 D for hyperopic patients. For near vision, i.e. in the non- dominant eye, the spheral equivalent values were 1.7 ± 0,22 D for myopic and 1.4 ± 0,38 D for hyperopic patients. CONCLUSIONS: After surgery both myopic and hyperopic patients experienced improvement in their visual acuity without correction for distant as well as for near vision. Spheral equivalents were widely modified in both groups for the dominant and non-dominant eyes, in order to facilitate the final visual result in both distances with the foreseen precision in the visual results that characterizes the Excimer laser surgery.
Palabras clave : Monovision; presbyopia; LASIK (laser assisted in situ keratomileusis).