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Astigmatic refractive errors associated with limbal dermoids

R M Robb1

  • 1Department of Ophthalmology, Children's Hospital, Boston, MA 02115, USA.

Journal of Pediatric Ophthalmology and Strabismus
|July 1, 1996
PubMed
Summary
This summary is machine-generated.

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Limbal dermoids often cause significant astigmatism (1.00 diopter or more) in affected eyes. Surgical removal of these growths does not typically correct the associated astigmatism.

Area of Science:

  • Ophthalmology
  • Ophthalmic Surgery
  • Corneal Diseases

Background:

  • Limbal dermoids are congenital choristomas that can affect ocular structures.
  • Astigmatism is a common refractive error that can be induced or exacerbated by corneal abnormalities.

Purpose of the Study:

  • To evaluate the prevalence of astigmatism in patients with limbal dermoids.
  • To assess the impact of surgical excision on pre-existing astigmatism.

Main Methods:

  • Retrospective chart review of 17 patients diagnosed with limbal dermoids.
  • Analysis of refractive data, including astigmatism severity and axis.
  • Correlation of astigmatism with dermoid location and surgical outcomes.

Main Results:

Related Experiment Videos

  • 76% of patients (13 out of 17) presented with astigmatism ≥1.00 diopter.
  • The axis of minus cylinder astigmatism typically aligned with the dermoid location.
  • Post-surgical follow-up showed persistent astigmatism with minimal changes in amount or orientation.

Conclusions:

  • Limbal dermoids are frequently associated with significant astigmatism.
  • Surgical removal of limbal dermoids does not correct the induced or pre-existing astigmatism.
  • Ocular astigmatism management may require separate interventions post-dermoid excision.