Clinical Observation of Phakic Posterior Chamber Intraocular Lens Implantation for High Myopia Correction

Objective:To explore the clinical effects of phakic posterior chamber intraocular lens implantation on high myopia correction.Methods:Phakic posterior chamber intraocular lens implantation was performed on 12 patients(23 eyes) with high myopia(-10D to 22.5D).The following items of examination were investigated before and after operation: uncorrected visual acuity,best corrected visual acuity,astigmatism,intraocular pressure,anterior chamber depth and the counting of endotheliocyte in cornea.Follow-up duration ranged from 6 months to 12 months after operation(average duration 8.6 months).Results:The implantation was successfully performed on all 23 eyes.The visual acuity was as same as or better than preoperative best corrected visual acuity 3 month after the treatment.The degree of astigmatism was significantly decreased.No changes were observed in postoperative items of examination for intraocular pressure,anterior chamber depth and the density of endotheliocyte in cornea compared to the preoperative results.No lenticular opacity occurred after the treatment.Conclusion:Phakic posterior chamber intraocular lens implantation is an effective treatment for high myopia and has an advantages of higher safety,predictability and reversibility.