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Case Reports: Reminder of important clinical lesson
Topographic changes in contralateral eye of a case of Terrien’s marginal degeneration
  1. Harshita Nahata1,
  2. Harsha Nagaraja2 and
  3. Rohit Shetty3
  1. 1Ophthalmology, Narayana Nethralaya, Bangalore, India
  2. 2Cornea and External Diseases of the Eye, Narayana Nethralaya, Bangalore, Karnataka, India
  3. 3Refractive Surgery, Narayana Nethralaya, Bangalore, Karnataka, India
  1. Correspondence to Dr Harshita Nahata; hnahata05{at}gmail.com

Abstract

A woman in her late twenties presented with blurring of vision in the right eye for 6 years. Retinoscopy showed a scissoring reflex in the right eye with best spectacle-corrected visual acuity of 20/40 in the right eye and 20/20 in the left eye. Slit-lamp examination of the right eye showed superior crescentic thinning with conjunctivalisation and lipid deposition while the left eye was normal. Corneal topography of the right eye showed inverse crab-claw pattern suggestive of Terrien’s marginal degeneration (TMD) and the left eye showed inferior steepening with posterior elevation and thinning suggestive of keratoconus-like topography. This case shows that evaluation of the other apparently normal eye with 20/20 vision might show changes on topography in cases of unilateral TMD and needs follow-up to assess any further progression.

  • Anterior chamber
  • Visual pathway

http://dx.doi.org/10.1136/bcr-2022-249493

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    Footnotes

    • Contributors HNah: conduct, reporting, articulation, data acquisition and editing of the case report. HNag: conception, design, analysis and interpretation of data. RS: design and editing of the final report.

    • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

    • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

    • Competing interests None declared.

    • Provenance and peer review Not commissioned; externally peer reviewed.