Posterior capsule opacification after extra capsular cataract extraction in Indian rural population: foldable acrylic vs poly (methyl-methacrylate) intraocular lenses a randomized clinical trial.
OBJECTIVE
To compare the performance of single-piece acrylic vspoly (methylmethacrylate) intraocular lenses (IOL) on the development of posterior capsule opacification (PCO) after conventional extra capsular cataract extraction (ECCE).


METHODS
One hundred and eighty-two eyes of 91 patients with bilateral senile cataract undergoing ECCE were prospectively randomized to receive a single-piece Alcon AcrySof SA60AT IOL or a single-piece EPOCH polymethylmethacrylate IOL in the first eye to have surgery. At 1, 6 and 12 months post-operative follow-up, digital retro illumination images of the posterior capsule were taken for PCO assessment semi-objectively using PCO (POCO automated analysis software) system. Relationship of anterior capsule contact (total off and partial cover) on optic for PCO was analyzed.


RESULTS
The AcrySof IOL was associated with less PCO than EPOCH lens at 6 months (10.01+/-8.75% vs 32.26+/-27.44%; P<0.001) and 1-year (11.65+/-10.55% vs 38.38+/-29.62%; P<0.001) follow-up. The EPOCH IOL showed a remarkably significant difference on development of PCO with anterior capsule overlap on IOL optic (total off and part on) 1 year (P<0.039), whereas no such difference was observed with the AcrySof IOL (P=0.197).


CONCLUSIONS
The AcrySof IOL led to significantly less PCO than the EPOCH IOL post-operatively after extracapsular cataract extraction.
Shah
A R
AR
Iladevi Cataract & IOL Research Centre, Raghudeep Eye Clinic, Memnagar, Ahmedabad, India.
Praveen
M R
MR
Vasavada
A R
AR
D000179:Acrylates; D000368:Aged; D002386:Cataract / Q000209:etiology*; D002387:Cataract Extraction; D005260:Female; D006801:Humans; D007903:Lens Capsule, Crystalline / Q000473:pathology*; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D019904:Polymethyl Methacrylate; D011183:Postoperative Complications; D011446:Prospective Studies; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012008:Recurrence; D012423:Rural Health
D000179:Acrylates; D019904:Polymethyl Methacrylate