Pediatric bag-in-the-lens intraocular lens implantation: long-term follow-up

J Cataract Refract Surg. 2015 Aug;41(8):1685-92. doi: 10.1016/j.jcrs.2014.12.057.

Abstract

Purpose: To evaluate long-term follow-up results of pediatric cataract surgery using the bag-in-the-lens (BIL) intraocular lens (IOL) implantation technique.

Setting: Antwerp University Hospital, Edegem, Antwerp, Belgium.

Design: Prospective case series.

Methods: All pediatric cataract surgeries with BIL IOL implantation performed at the Antwerp University Hospital were evaluated. Only cases that completed a follow-up of 5 years at the hospital's Department of Ophthalmology were included in this study.

Results: Forty-six eyes of 31 children had a complete follow-up of 5 years or more after BIL IOL implantation. Sixteen cases were unilateral and 15 were bilateral. Patient age at time of surgery ranged from 2 months to 14 years. The mean refraction at the end of follow-up was -1.99 diopters (D) ± 3.70 (SD). In bilateral cases, a corrected distance visual acuity (CDVA) of better than 0.5 was attained in 86.7% and a CDVA of 1.0 was achieved in 56.7%. In unilateral cases, 31.2% achieved a CDVA of better than 0.5 but none obtained a CDVA of 1.0. A clear visual axis was maintained in 91.3% of cases during follow-up. Visual axis reopacification was detected in 4 eyes of 3 cases, all due to inadequate BIL IOL positioning. None of these eyes needed more than 1 intervention to maintain visual axis clarity. Other than 1 case of glaucoma, no severe complications were detected.

Conclusion: Long-term follow-up results show that BIL IOL implantation is a safe, well-tolerated approach for treating pediatric cataract with a very low rate of visual axis reopacification and a low rate of secondary interventions for other postoperative complications.

Financial disclosure: Dr. Tassignon has intellectual property rights to the bag-in-the-lens intraocular lens (U.S. patent 6 027 531; EU patent 009406794.PCT/120268), which is licensed to Morcher GmbH, Stuttgart, Germany. No other author has a financial or proprietary interest in any material or method mentioned.

MeSH terms

  • Adolescent
  • Cataract / congenital
  • Cataract / physiopathology
  • Child
  • Child, Preschool
  • Female
  • Follow-Up Studies
  • Humans
  • Infant
  • Intraoperative Complications
  • Lens Capsule, Crystalline / surgery*
  • Lens Implantation, Intraocular / methods*
  • Lenses, Intraocular*
  • Male
  • Phacoemulsification
  • Postoperative Complications
  • Prospective Studies
  • Pseudophakia / physiopathology*
  • Refraction, Ocular / physiology
  • Visual Acuity / physiology