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Optic disc in fundus coloboma

L Gopal1, S S Badrinath, K S Kumar

  • 1Sankara Nethralaya, Medical Foundation, Madras, India.

Ophthalmology
|December 1, 1996
PubMed
Summary
This summary is machine-generated.

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Optic disc involvement in fundus coloboma varies widely. Over 67% of fundus colobomas show altered or colobomatous discs, impacting visual acuity.

Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Genetics

Background:

  • Fundus coloboma is a congenital anomaly of the eye.
  • Optic disc abnormalities can occur in patients with fundus coloboma.
  • Understanding these variations is crucial for patient management.

Purpose of the Study:

  • To categorize and describe optic disc involvement in fundus coloboma.
  • To analyze blood vessel patterns associated with fundus coloboma.
  • To correlate optic disc anomalies with visual acuity and other ocular findings.

Main Methods:

  • Prospective study of 67 eyes from 40 patients with choroidal coloboma.
  • Detailed documentation of fundus features using drawings and/or photographs.
  • Classification of optic disc involvement into six distinct types.

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Main Results:

  • Six types of optic disc involvement were identified, with varying frequencies.
  • Over 67% of fundus colobomas were associated with frankly colobomatous or altered discs.
  • Visual acuity was significantly better in eyes with discs outside the coloboma compared to those within or with unidentified disc shapes.

Conclusions:

  • Optic disc involvement in fundus coloboma exhibits significant variability.
  • A substantial proportion of discs, both within and outside the coloboma, show abnormalities.
  • The location and nature of optic disc involvement correlate with visual acuity outcomes.