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Related Experiment Videos

Changes in keratometry following trabeculectomy.

C E Hugkulstone1

  • 1Department of Ophthalmology, King's Mill Hospital, Sutton-in-Ashfield, Nottinghamshire.

The British Journal of Ophthalmology
|April 1, 1991
PubMed
Summary
This summary is machine-generated.

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Trabeculectomy surgery reduces the vertical corneal radius, unlike cataract surgery. Initial horizontal radius changes resolve within weeks, suggesting a specific surgical effect on corneal shape.

Area of Science:

  • Ophthalmology
  • Corneal Surgery
  • Glaucoma Surgery

Background:

  • Trabeculectomy is a common glaucoma surgery.
  • Corneal changes after ocular surgery can impact visual outcomes.
  • Previous studies noted corneal flattening after cataract surgery due to wound gape.

Purpose of the Study:

  • To analyze the keratometric changes after trabeculectomy.
  • To compare corneal radius alterations post-trabeculectomy with those seen after cataract extraction.

Main Methods:

  • Keratometry measurements were taken before and after trabeculectomy.
  • Corneal radii (vertical and horizontal) were analyzed at different postoperative time points.

Main Results:

Related Experiment Videos

  • Trabeculectomy led to a significant reduction in the vertical corneal radius.
  • An initial increase in horizontal corneal radius was observed immediately after surgery.
  • This horizontal radius increase was not sustained at two and seven weeks post-surgery.

    • Conclusions:

    • Trabeculectomy induces specific changes in corneal curvature.
    • The effect on corneal radius differs from that observed after cataract extraction.
    • A proposed mechanism explains these observed keratometric alterations.