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Revista Cubana de Oftalmología

versión impresa ISSN 0864-2176versión On-line ISSN 1561-3070

Resumen

HERNANDEZ SILVA, Juan Raúl et al. Effective position of the intraocular lens diagnosed with ultrasonic biomicroscopy in phacoemulsification. Rev Cubana Oftalmol [online]. 2010, vol.23, n.2, pp.260-276. ISSN 0864-2176.

OBJECTIVE: To determine the effective position of the intraocular lens in the phacoemulsiphication diagnosed by ultrasonic biomicroscopy and its relationship to the postsurgical refractive surprise. METHODS: A prospective and descriptive study was performed in a sample of 176 eyes from 100 patients, who had been operated on from cataract with phacoemulsiphication using Pre Chop technique in the Ocular Microsurgery Service of "Ramón Pando Ferrer" Cuban Institute of Ophthalmology". The effective position of their intraocular lens diagnosed by ultrasonic biomicroscopy in the phacoemulsiphication and their relationship to the post surgery refractive surprise was determined. RESULTS: Most of the studied patients were older adult males. The ultrasonic biomicroscopy diagnosed the effective position of the intraocular lens in sac-sulcus to achieve the best postoperative corrected visual acuity in all the studied groups. The distance from the posterior face of the iris to the intraocular lens found in patients with intraocular lens in capsular sac showed a constant value. Most of the normocorrected patients had their intraocular lens in the capsular sac whereas the intraocular lens located in sac-sulcus position, whose haptics exhibited bigger angle, had bigger postoperative average cylinder, no significant differences were found among the postoperative average cylinders. CONCLUSIONS: The importance of the ultrasonic biomicroscopy is demonstrated in the determining the position of the intraocular lens in the surgical patients. The location of the intraocular lens is decisive in the postoperative refractive defect; bigger postoperative cylinder was more often found in the sac-sulcus position

Palabras clave : Ultrasonic biomicroscopy; phacoemulsification; effective lens position.

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