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Phaco, small-incision cataract surgery have no postop differences in endothelial cell count loss
J Cataract Refract Surg. 2010;36(2):247-253.
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Phacoemulsification and manual small-incision cataract surgery showed similar results for some postoperative factors at 6 weeks after surgery, a study found.
"There were no clinically or statistically significant differences in [endothelial cell count] loss or visual acuity between phacoemulsification and [small-incision cataract surgery], although there was a small difference in the astigmatic shift," the study authors said.
The randomized, controlled trial looked at 100 patients who received phacoemulsification and 100 patients who received manual small-incision cataract surgery (SICS) at a tertiary care ophthalmic center in India.
Preoperatively and at 1 week and 6 weeks postoperatively, endothelial cell count was measured manually and automatically with a specular microscope.
By 6 weeks, corrected distance visual acuity in the phaco group was better than 6/18 in 98.5% of eyes, while in the SICS group, it was better than 6/18 in 97.3% of eyes.
Mean preoperative endothelial cell counts using the manual method were 2,950.7 cells/mm² in the phaco group and 2,852.5 cells/mm² in the SICS group. Using the automated counting method, the count was 3,053.7 cells/mm² in the phaco group and 2,975.3 cells/mm² in the SICS group.
At 6 weeks, endothelial cell counts using the manual method were 543.4 cells/mm² in the phaco group and 505.9 cells/mm² in the SICS group; using the automated method, cell counts were 474.2 cells/mm² in the phaco group and 456.1 cells/mm² in the SICS group.
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