Primary congenital glaucoma outcomes: lessons from 23 years of follow-up

Sophia L Zagora1, Charlotte L Funnell2, Frank J Martin3

  • 1Discipline of Ophthalmology, University of Sydney, Sydney, NSW, Australia.

Insights

Early diagnosis of primary congenital glaucoma is crucial for visual outcomes, even with successful surgery. This study reveals critical ages around 2 and 5 years for potential glaucoma progression requiring further intervention.

Area of Science:

  • Ophthalmology
  • Pediatric Ophthalmology
  • Glaucoma Research

Background:

  • Primary congenital glaucoma (PCG) is a rare but severe form of glaucoma.
  • Early diagnosis and intervention are critical for preserving vision in affected children.
  • Understanding the long-term impact of surgical timing and success is essential for optimizing patient care.

Purpose of the Study:

  • To investigate the influence of presentation age on surgical success in primary congenital glaucoma.
  • To determine the extent of angle surgery required for glaucoma control.
  • To identify critical age periods for potential glaucoma progression necessitating further surgical management.

Main Methods:

  • Retrospective cohort study analyzing 192 procedures on 117 eyes (70 patients) over 23 years.
  • Surgical success defined by stable intraocular pressure and optic disc appearance.
  • Analysis of age at presentation, number of angle procedures, and final visual acuity.

Main Results:

  • 75.5% of angle surgeries were successful, with long-term success rates decreasing over time.
  • Children diagnosed before 3 months had poorer visual outcomes (<20/200) despite controlled glaucoma.
  • Presentation age and number of operations did not significantly impact surgical success.

Conclusions:

  • Early presentation (<3 months) in PCG is associated with poor visual outcomes, irrespective of surgical success.
  • Age of presentation does not influence the success of angle surgery.
  • Critical ages for potential glaucoma progression and need for further surgery identified around 2 and 5 years.
Abstract

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