Clinical Trial: Surgically Induced Astigmatism of Temporal Versus Nasal Clear Corneal Phacoemulsification

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title:

Brief Summary: To compare the short-term astigmatic outcomes of phacoemulsification cataract surgery and intraocular lens implantation using temporal versus nasal clear corneal incisions.

Detailed Summary: In a clinical trial, consecutive eyes with senile cataract underwent phacoemulsification with implantation of a 6.0 mm foldable hydrophobic acrylic intraocular lens through a 3.2 mm horizontal clear cornea incision at 180 degrees (temporal incision in right eyes, nasal incision in left eyes). Keratometric astigmatism was measured preoperatively and one and four weeks and 6 months after surgery. Surgically induced astigmatism (SIA) was calculated by the vector analysis method using the Holladay-Cravy-Koch formula. Patients with history of diabetes mellitus, connective tissue disorders, steroid use, previous ocular surgery, with the rule astigmatism >1D, pseudoexfoliation and any corneal pathology were excluded.
Sponsor: Shahid Beheshti University of Medical Sciences

Current Primary Outcome: Total and Surgical Induced Astigmatism [ Time Frame: At 1 and 4 weeks and 6 month after surgery ]

Original Primary Outcome: Same as current

Current Secondary Outcome:

Original Secondary Outcome:

Information By: Shahid Beheshti University of Medical Sciences

Dates:
Date Received: August 27, 2007
Date Started: June 2005
Date Completion:
Last Updated: September 4, 2007
Last Verified: August 2007