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Primary IOL implantation in children: the effect of the Infant Aphakia Treatment Study on practice patterns

Zachary B Poole1, Rupal H Trivedi1, M Edward Wilson1

  • 1Medical University of South Carolina, Charleston, South Carolina.

Journal of AAPOS : the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
|May 18, 2019
PubMed

Insights

The Infant Aphakia Treatment Study (IATS) significantly shifted pediatric cataract surgery practices. Following IATS, the use of primary intraocular lens (IOL) implantation decreased substantially in favor of primary aphakia management.

Area of Science:

  • Ophthalmology
  • Pediatric Medicine
  • Surgical Practice Analysis

Background:

  • Infant cataract surgery management has evolved significantly.
  • The Infant Aphakia Treatment Study (IATS) provided critical data on treatment outcomes.
  • Understanding practice pattern shifts is crucial for evidence-based care.

Purpose of the Study:

  • To evaluate the long-term impact of the IATS publication on clinical practice patterns.
  • To analyze changes in the surgical management of pediatric cataracts before and after IATS results were released.
  • To assess the adoption of primary intraocular lens (IOL) implantation versus primary aphakia in infants.

Main Methods:

  • Retrospective review of medical records for children under 7 months undergoing cataract surgery.
  • Analysis of treatment choices (primary IOL vs. primary aphakia) at a single institution.
  • Comparison of practice patterns during pre-IATS (1995-2004) and post-IATS (2009-2018) periods.

Main Results:

  • Primary IOL use decreased from 61% to 6% for unilateral cases and 47% to 23% for bilateral cases post-IATS.
  • A noticeable decline in primary IOL treatment began in 2010-2011, coinciding with the 1-year IATS results.
  • A drastic reduction in primary IOL implantation occurred in 2015, following the 5-year IATS results publication.

Conclusions:

  • Publication of the IATS findings has demonstrably altered pediatric cataract surgery practices.
  • The study highlights a significant shift away from primary intraocular lens implantation towards primary aphakia management in infants.
  • Long-term follow-up of landmark studies can effectively influence clinical decision-making and practice patterns.

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