The Clinical Results of 6-mm Iris-Fixated Phakic IOL

PURPOSE: To evaluate the clinical results of 6 mm iris-fixated phakic intraocular lens (Artisan(R) lens) implantation in myopic patients. METHODS: Forty eyes of 23 myopic patients underwent 6-mm Artisan(R) phakic IOL implantation and were followed-up for over 6 months. We prospectively analyzed the efficacy, stability, predictability, change of astigmatism, endothelial cell count, pupil diameter, degree of decentration, subjective satisfaction and complications. RESULTS: The preoperative mean spherical equivalent was -9.46 D, and postoperative spherical equivalent was -0.70D at 1 month, -0.55D at 3 months, -0.54D at 6 months, -0.78D at 12 months and remained stable during the follow-up period. The preoperative mean astigmatism was -1.88D and postoperative astigmatism was -0.87D at 6 months. Postoperative uncorrected visual acuity (UCVA) was more than 0.8 in 85% of the eyes at 1 month, 91% at 3 months, 95% at 6 months, and 89% at 12 months. The spherical equivalent refraction after surgery was within 1.0D of emmetropia in 78% of eyes at 1 month, 80% at 3 months, 88% at 6 months, and 64% at 12 months. There was no significant decrease in the endothelial cell count during the follow-up period. Preoperative scotopic pupil diameters were significantly decreased at 1 month and the mean decentration of the lens was 0.38 mm. Patient satisfaction was generally high. Complications included the transient elevation of intraocular pressure in 1 eye, corneal edema in 4 eyes, iritis in 1 eye, traumatic dislocation in 1 eye and iris atrophy in 2 eyes. CONCLUSIONS: The 6-mm Artisan(R)phakic IOL implantation may be an effective surgical procedure for myopic patients who cannot undergo corneal refractive surgery, as it provided good visual results, predictability, patient satisfaction, and short-term safety.

The Clinical Results of Iris-Fixed Phakic IOL

PURPOSE: To prospectively evaluate the clinical results of iris-fixed phakic intraocular lens (IOL) implantation (Artisan(R) implantation) in patients with high myopia. METHODS: Eighteen eyes of 10 patients underwent Artisan(R) implantation between December 2001 and February 2003 and were followed up for more than 6 months. The study prospectively analyzed the efficacy, safety and predictability of Artisan(R) implantation based on visual acuity and refractive errors. RESULTS: The preoperative mean uncorrected visual acuity (UCVA) was 0.02, and mean spherical equivalent refraction was -9.98D. Postoperative uncorrected vision was more than 0.5 in 83.3% of the eyes at 1 month and in 100% after 3 months. Also it was more than 0.9 in 22.2% of the eyes at 1 month, in 50.0% at 3 months and in 88.9% at 6 months. The spherical equivalent refraction after surgery was within 0.5D of emmetropia in 77.8% of eyes at 1 month, in 94.4% at 3 months and in 100% at 6 months. Also it was within 1.0D of emmetropia in 94.4% at 1 month and in 100% after 3 months. Complications included temporary glare or halo in 3 eyes, transient elevation of intraocular pressure in 1 eye, and decentration of IOL due to incomplete iris-fixation in 1 eye. CONCLUSIONS: Because of its good visual results and rare complications, the Artisan(R) implantation may be an effective surgical procedure for patients who cannot undergo laser in situ keratomileusis (LASIK).