Cataract Clinical Trial
Official title:
Intraocular Pressure and Ocular Biometrics Changes After Phacoemulsification in Glaucomatous Patients and Age Matched Controls, Comparative Study
Effect of phacoemulsification on intraocular pressure has been studied with variable results.Furthermore, effect of phacoemulsification on ocular biometrics including anterior chamber depth and angle opening distance has also been studied. In our study we aim at establishing a quantitative relationship between preoperative ocular biometrics and postoperative intraocular pressure change and comparing this relationship in glaucomatous and non-glaucomatous eyes.
All patients will have the anterior chamber angle assessed by indentation gonioscopy preoperatively. Anterior Chamber Depth & lens thickness will be measured by Optical Biometry (lenstar 900) as well as measurement of the angle & lens vault using the Ultrasound Biomicrosopy (UBM) before and 1 month after cataract surgery. IOP will be measured pre- & postoperatively on day 7 and 30. Possible Risk (s): Risks of surgery(hemorrhage, endophthalmitis), Risks for investigations: minimal risk of infection To minimize the risk of infection: adherence to pre-& intraoperative infection-control measures, postoperative UBM is to be done at 1 month. ;
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