NCT00742950

Refractive Change Induced by 2.8-mm Corneal Incision

Study of Refractive Change Induced by 2.8-mm Corneal Incisions for Cataract Surgery

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 108 (estimated)
• Sponsor: Hospital Universitario Ramon y Cajal · Academic / Other
• Sex: All
• Age: 50 Years – 80 Years
• Healthy volunteers: Not accepted

Summary

The investigators' purpose is to study the induced refractive change caused by different 2.8-mm corneal incision locations in phacoemulsification, because the investigators hypothesize that the effect may be different for nasal, temporal, and superior location, although they are considered astigmatism neutral. Patients will be randomized to nasal or temporal incision, or assigned to superior incision, depending on preexisting astigmatism. Visual acuity, refraction, keratometry, Pentacam analysis, intraocular pressure, biomicroscopy, and funduscopy, will be carried out before and after phacoemulsification. Outcome measures will be induced corneal refractive change (Fourier power vector analysis), ISV change, and visual acuity, at 6 months.

Conditions

• Cataract
• Refractive Surgery
• Astigmatism

Interventions

Type	Name	Description
PROCEDURE	Nasal 2.8-mm corneal incision	Phacoemulsification through a nasal 2.8-mm incision
PROCEDURE	Temporal 2.8-mm corneal incision	Phacoemulsification through a 2.8-mm temporal incision
PROCEDURE	Superior 2.8-mm incision	Phacoemulsification through a superior 2.8-mm corneal incision

Timeline

• Start date: 2008-08-01
• Primary completion: 2009-09-01
• Completion: 2009-12-01
• First posted: 2008-08-28
• Last updated: 2011-06-27

Locations

1 site across 1 country: Spain