NCT00521833

Surgically Induced Astigmatism of Temporal Versus Nasal Clear Corneal Phacoemulsification

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 20 (actual)
• Sponsor: Shahid Beheshti University of Medical Sciences · Academic / Other
• Sex: All
• Age: —
• Healthy volunteers: Not accepted

Summary

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

Detailed description

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.

Conditions

• Surrgical Induced Astigmatism

Interventions

Type	Name	Description
PROCEDURE	phacoemulsification and intraocular lens implantation	clear cornea phacoemulsification and intraocular lens implantation using temporal or nasal incisions respectively

Timeline

• Start date: 2005-06-01
• Completion: 2006-08-01
• First posted: 2007-08-28
• Last updated: 2007-09-05

Locations

1 site across 1 country: Iran