TJ-CEO
2008 , Vol 3 , Num 2
Long-Term Results of Angle-Supported Anterior Chamber Phakic Intraocular Lens Implantation in High Myopic Eyes
1Vakıf Gureba Eğitim ve Araştırma Hastanesi, İstanbul, Asist. Dr.2Vakıf Gureba Eğitim ve Araştırma Hastanesi Başasistan, İstanbul, Uzm. Dr.
3Vakıf Gureba Eğitim ve Araştırma Hastanesi Klinik Şef Muavini, İstanbul, Uzm. Dr. Purpose: To evaluate the long-term results of angle-supported anterior chamber phakic intraocular lens (IOL) implantation in high myopic eyes.
Materials and Methods: Into 16 eyes of 9 high myopic patients (5 men and 4 women) angle-supported anterior chamber phakic 6.0 mm optic IOLs (Phakic 6H IOL; Ophthalmic Innovations International, Inc.) were implanted. The diopters of IOLs were calculated according to phakic 6H diopter formula. A 6 mm temporal limbal tunnel incision was created under general anesthesia. After the anterior chamber was deepened with a viscoelastic device (Healon GV) Phakic 6H was implanted onto the angle. After the operation the IOL-endothelium distance within the anterior chamber was measured. Long-term results were analyzed.
Results: The mean age of patients was 29.3±5.3 years (22-39 years). The mean follow-up time was 44.2±3.6 months (39-51 months). The mean corrected visual acuity (CVA) with Snellen chart before the operation was 0.4±0.2 (0.1- 0.7), the mean spherical equivalent was -14.45±3.4 D (-11.5, -18.5D), and the mean anterior chamber depth was 3.48±0.2 mm (3.2-3.86 mm). There were no intraoperative complications. The mean corrected visual acuity (CVA) based on the Snellen chart after the operation was 0.5±0.2 (0.1-0.8). No retinal detachments were observed in any of the eyes. In one case ovalization of the pupil was observed. The mean spherical equivalent was -1.0±0.7 D (0.5-2.00 D) and in 70% of eyes the refraction limit was within ±1.0 D.
Conclusion: The use of anterior chamber phakic IOL is an acceptable choice for the treatment of high myopia in appropriate eyes. Keywords : Phakic intraocular lens, high myopia