Corneal topographic changes induced by excision of perilimbal lesions.
OBJECTIVE
To evaluate corneal topographic changes induced by excision of two pterygia and a perilimbal dermoid.


METHODS
Using the EyeSys Corneal Analysis System, we retrospectively analyzed the changes in astigmatism, mean central corneal power, and other topographic parameters of three corneas before and after surgical removal of two pterygia and a perilimbal dermoid.


RESULTS
Marked corneal steepening occurred along the preoperative flat meridian after the excision of the pterygia and dermoid cyst. For each patient, surgery increased the mean central corneal curvature and decreased total astigmatism.


CONCLUSIONS
Surgical excision can ameliorate abnormal corneal topographic changes produced by limbal lesions.
Baylor College of Medicine, Cullen Eye Institute, Houston, TX 77030, USA.
K
K
Budak
T T
TT
Khater
N J
NJ
Friedman
D D
DD
Koch
D000328:Adult; D000368:Aged; D001251:Astigmatism / Q000209:etiology / Q000503:physiopathology*; D003315:Cornea / Q000503:physiopathology* / Q000601:surgery; D003316:Corneal Diseases / Q000150:complications / Q000601:surgery*; D019781:Corneal Topography; D003884:Dermoid Cyst / Q000150:complications / Q000601:surgery*; D005134:Eye Neoplasms / Q000150:complications / Q000601:surgery*; D006801:Humans; D011625:Pterygium / Q000150:complications / Q000601:surgery*; D012029:Refraction, Ocular; D012189:Retrospective Studies; D014792:Visual Acuity