December 2002
Volume 43, Issue 13
ARVO Annual Meeting Abstract  |   December 2002
Orbscan Analysis of the Cornea after Scleral Buckling Surgery
Author Affiliations & Notes
  • BA Nassaralla
    Ophth & Refractive Surgery
    Goiania Eye Institute Goiania Brazil
  • JJ Nassaralla
    Retina and Vitreous
    Goiania Eye Institute Goiania Brazil
  • Footnotes
    Commercial Relationships   B.A. Nassaralla, None; J.J. Nassaralla, None.
Investigative Ophthalmology & Visual Science December 2002, Vol.43, 146. doi:
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      BA Nassaralla, JJ Nassaralla; Orbscan Analysis of the Cornea after Scleral Buckling Surgery . Invest. Ophthalmol. Vis. Sci. 2002;43(13):146.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract: : Purpose:To assess by the Orbscan corneal topographer, the corneal changes after three different types of scleral buckling surgery. Methods:22 eyes of 22 patients were divided into three groups according to the type of buckling procedure performed: Group 1, encircling scleral buckling (11 patients); Group 2, encircling with vitrectomy (6 patients); Group 3, encircling with additional segmental buckling (5 patients). Orbscan topographical analyses were performed preoperatively and at 1, 3 and 6 months after surgery. Results:Statistical significance was observed in the amount of induced corneal steepening in all three groups. After surgery, Groups 1 and 2 presented either flattening on one side with steepening on the opposite side or peripheral corneal flattening with central steepening. The incidence of irregular astigmatism was higher after additional segmental buckling (Group 3). The corneal changes persisted for up to 6 months. No statistical significance was found between pachymetric measurements before and after surgery. Conclusion:Corneal steepening, irregular and asymmetric corneal changes were found after all three types of scleral buckling surgery. Additional segmental buckling is related to more significant corneal changes.

Keywords: 599 topography • 563 retinal detachment • 543 refractive error development 

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