742950
Last Update Posted: 2011-06-27
Recruiting has ended
All Genders accepted | 50 Years-80 Years |
108 Estimated Participants | No Expanded Access |
Interventional Study | Does not accept healthy volunteers |
Refractive Change Induced by 2.8-mm Corneal Incision
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.
Eligibility
Relevant conditions:
Cataract
Refractive Surgery
Astigmatism
If you aren't sure if you meet the criteria above speak to your healthcare professional. Criteria may be updated but not reflected here, do not hesitate to contact the study if you think are close to fitting criteria.
locations
Data sourced from ClinicalTrials.gov