Globe Axial Length Growth at Age 10.5 Years in the Infant Aphakia Treatment Study

M Edward Wilson1, Rupal H Trivedi1, David R Weakley2

  • 1Storm Eye Institute, Medical University of South Carolina, Charleston, South Carolina, USA.

Insights

Infant cataract surgery did not alter overall axial length (AL) growth compared to fellow eyes. Treated eyes showed similar growth whether treated with contact lenses (CL) or intraocular lenses (IOL), though glaucoma impacted AL growth.

Area of Science:

  • Ophthalmology
  • Pediatric Ophthalmology
  • Ophthalmic Surgery

Background:

  • Unilateral cataract surgery in infants requires monitoring of axial length (AL) growth.
  • The Infant Aphakia Treatment Study provides long-term data on visual development and ocular growth.

Purpose of the Study:

  • To track changes in globe axial length (AL) from infancy to age 10.5 years after unilateral cataract surgery.
  • To compare AL growth between operated and fellow unoperated eyes in infants.

Main Methods:

  • A comparative case series design was used.
  • Axial length growth was analyzed based on treatment type (contact lens vs. intraocular lens), visual acuity outcomes, and need for secondary surgery.
  • Eyes with glaucoma were analyzed separately.

Main Results:

  • Treated eyes were shorter preoperatively and at age 10.5 but exhibited similar AL growth (4.7 mm) to fellow eyes (P = .99).
  • Axial length growth was comparable between contact lens and intraocular lens groups (P = .79).
  • Eyes with glaucoma showed significantly greater growth (7.3 mm) compared to non-glaucomatous eyes (4.7 mm).

Conclusions:

  • Unilateral cataract surgery in infants does not significantly alter overall axial length growth compared to fellow eyes.
  • Axial length growth was similar for both contact lens and intraocular lens treatments.
  • Glaucoma and poor visual acuity were associated with increased axial length growth in operated eyes.
Abstract

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