Visual outcome of manual small-incision cataract surgery: comparison of modified Blumenthal and Ruit techniques
10.3969/j.issn.1672-5123.2011.05.001
- VernacularTitle:两种手法小切口白内障手术视觉结果比较
- Author:
Kongsap PIPAT
- Publication Type:Journal Article
- Keywords:
cataract surgery;
small-incision cataract surgery;
astigmatism;
complication;
visual acuity;
Blumenthal technique;
Ruit technique
- From:
International Eye Science
2011;11(5):753-756
- CountryChina
- Language:Chinese
-
Abstract:
AIM: To compare the efficacy and visual results of the modified Blumenthal and Ruit techniques for manual small-incision cataract surgery (MSICS).METHODS: This was a prospective, non-randomized comparison of 129 patients with senile cataracts scheduled to undergo routine cataract surgery via either a superior scleral tunnel incision, i.e., the Blumenthal technique (group 1, n=64) or a temporal scleral tunnel incision, i.e., the Ruit technique (group 2,n=65). MSICS and intraocular lens implantation were performed through an unsutured 6.5-to 7.0-mm scleral tunnel incision. Uncorrected and corrected visual acuity, intraoperative and postoperative complications, and surgically induced astigmatism calculated by simple subtraction were compared. Patients were examined 1 day, 1 week, 1 month, and 3 months after surgery.RESULTS: Both groups achieved good visual outcomes with minor complications. Three months after surgery, the corrected visual acuity was 0.73 in the Blumenthal group and 0.69 in the Ruit group (P=0.29). The average (SD) postoperative astigmatism was 0.87 (0.62) diopter (D) for the Blumenthal group and 0.86 (0.62) D for the Ruit group. The mean (SD) surgically induced astigmatism was 0.55 (0.45) D and 0.50 (0.44) D for the Blumenthal and Ruit groups, respectively (P=0.52). Common complications were minimal hyphema and corneal edema. There was no statistically significant difference in the complication rate between the groups (P>0.05).CONCLUSION: In MSICS, both the Blumenthal and Ruit techniques achieve good visual outcomes, with low complication rates.
