PURPOSE: To compare the astigmatism induced by clear corneal incisions (CCIs) and corneoscleral tunnel incisions (CSIs) for cataract surgery over 6 months.
SETTING: Rotterdam Eye Hospital, rotterdam, The Netherlands.
METHODS: Thirty-five patients having phacoemulsification were recruited prospectively; 15 had CCIs and 20, CSIs. Corneal topography was performed by computerized videokeratoscopy preoperatively and 6 months postoperatively. The change in keratometric astigmatism was calculated using the absolute magnitude and vector analysis methods.
RESULTS: There was no significant difference between the change in astigmatism produced by the two incisions (Student's t-test).
CONCLUSION: The CCI for cataract surgery did not produce significantly greater astigmatism than the CSI. Concern over CCIs having a greater risk of increasing corneal astigmatism is unfounded and does not justify withholding the technique from patients it could benefit.
|Number of pages||3|
|Journal||Journal of Cataract and Refractive Surgery|
|Publication status||Published - Jun 1997|
- Follow-Up Studies
- Image Processing, Computer-Assisted
- Postoperative Complications/pathology
- Prospective Studies
- Visual Acuity