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Miscellaneous (25)

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Abstract #22901 Published in IGR 11-1

A ten-year follow-up analysis of phakic intraocular lens implantation in very high myopic eye

Lian J; Liao H; Zhou Z; Zhu C; Wang K
Chinese Ophthalmic Research 2008; 26: 773-775

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OBJECTIVE: It is difficult for surgeon to perform LASIK surgery on thin cornea with very high myopia. This study was to investigate the stability, predictability and safety of angle-supported phakic intraocular lens (phakic IOL) implantation for treatment of very high myopia. METHODS: Anterior chamber angle-supported phakic IOL (NuVita MA20) implantation was performed on 12 high myopic eyes of 7 patients with the follow-up time for ten years. Anterior segment changes, unconnected visual acuity (UCVA), best corrected visual acuity (BCVA), refraction, intraocular pressure (1OP), corneal endothelium preoperatively and postoperatively were clinically observed in the 12 eyes. RESULTS: The mean preoperative diopter was (-16.12 ±3.21) D and BCVA was 0.68 ±0.36. After one year of surgery, the mean UCVA was 0.71 ±0.25, the mean BCVA was 0.83 ±0.31 and the mean residual refraction was (-0.50 ±0.43) D. After ten years of surgery, the mean UCVA was 0.32 ±0.12, and the mean BCVA was 0.50 ±0.24 and the mean residual refraction was (-2.50 ±0.62) D. The mean corneal endothelial count was 2 988 ±230/mm², 2 837 (plus or minus) 225/mm² and 1 639 ±201/mm² respectively and the IOP was (16.87 ±2.32) mmHg, (17.12 ±2.45) mmHg and (18.60 ±3.24) mmHg respectively before, after one and ten years of surgery. Oval pupils in 2 eyes, decentered phakic IOL in 2 eyes, secondary glaucoma in 2 eyes, atrophy and dissection of iris roots in 2 eyes, cataract in 3 eyes and macular degeneration in 2 eyes were observed at ten years of follow-up. CONCLUSION: Although phakic IOL implantation is predictable and sale for treatment of very high myopia in short-term, the long-term complications should be concerned especially for diminution of endothelial cell, formation of cataract and occurrence of glaucoma. LA: Chinese

Dr. J. Lian, Department of Ophthalmology, Ruijin Hospital, Shanghai Jiaotong University, Shanghai 200025, China. lianjingcai@163.com

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Classification:

9.4.11.2 Glaucomas in aphakia and pseudophakia (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders > 9.4.11 Glaucomas following intraocular surgery)
8.1 Myopia (Part of: 8 Refractive errors in relation to glaucoma)

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