ZB5M Anterior Chamber and Fyodorov’s Posterior Chamber Phakic Intraocular Lenses: Long-term Follow-up

PURPOSE

To compare the long-term complications of two outdated phakic intraocular lenses (PIOL) implanted in eyes with high myopia to aid development of better PIOL designs.

METHODS

Sixty-two eyes of 37 patients implanted with the ZB5M anterior chamber PIOL (anterior chamber group) and 22 eyes of 14 patients implanted with Fyodorov’s posterior chamber PIOL (posterior chamber group) were examined. Complications were compared after a mean follow-up of 71.15±32.17 months (range: 24 to 145 months) in the anterior chamber group and 84.14±26.43 months (range: 24 to 132 months) in the posterior chamber group (P=.07).

RESULTS

At last follow-up, pupil ovalization was present in 32 (51.6%) eyes in the anterior chamber group and 1 (4.5%) eye in the posterior chamber group (P<.001), and cataract in 5 (8.1%) eyes in the anterior chamber group and 7 (31.8%) eyes in the posterior chamber group (P=.007). Phakic intraocular lens decentration, glaucoma, retinal detachment, corneal decomposition, and monocular diplopia were additional complications encountered in both groups, with no statistically significant difference.

CONCLUSIONS

Proper understanding of these outdated PIOLs may be helpful in developing better PIOL designs. [J Refract Surg. 2006;22:906-910.]

AUTHORS

From the Beyoglu Eye Education and Research Hospital, Istanbul, Turkey.

The authors have no proprietary interest in the materials presented herein.

Correspondance: Canan A. Utine, MD, Guzelbahce Sokak No:14/4, Nisantasi, 34365, Istanbul, Turkey. Tel: 90 533 5587635; Fax: 90 212 2450947; E-mail: cananutine@gmail.com

Received: January 9, 2006

Accepted: April 4, 2006

Posted online: July 31, 2006