Minimal astigmatism after sutureless planned extracapsular cataract extraction.
ABSTRACT To evaluate astigmatism after mini-nuc extracapsular cataract extraction (ECCE) in which a chevron incision is enlarged to 6.0 to 7.0 mm for easier nucleus removal and to compare the results with those using a 5.0 mm incision.
Department of Ophthalmology, The Edith Wolfson Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Holon, Israel.
Thirty eyes of 29 patients were enrolled in this study. Keratometry was performed preoperatively and 3 to 9 months postoperatively. The incision length was 6.0 mm in 6 eyes, 6.5 mm in 10 eyes, and 7.0 mm in 14 eyes that had mature cataract.
The mean induced astigmatism calculated by simple subtraction was 0.12 diopter (D) +/- 0.51 (SD), 0.16 +/- 0.98 D, and 0.67 +/- 0.91 D for the 6.0 mm, 6.5 mm, and 7.0 mm incision, respectively. By vector analysis, the mean induced astigmatism was 0.60 +/- 0.30 D, 0.75 +/- 0.67 D, and 1.36 +/- 0.77 D, respectively. Results by both methods showed no significant difference between the previously reported 5.0 mm incision and the 6.0 mm and 6.5 mm incisions. The 7.0 mm group had statistically significantly greater induced astigmatism than the 5.0 mm group (P =.01, simple subtraction; P =.002, vector analysis).
Enlarging the size of the chevron incision up to 7.0 mm resulted in a small increase in induced astigmatism. The enlarged incision simplified the operative technique.
Article: Cataract surgeries by phaco-sandwich technique through sclerocorneal tunnel, a cohort study in Oman.[show abstract] [hide abstract]
ABSTRACT: To evaluate the changes in Preoperative and Postoperative keratometry results and rapid visual rehabilitation in Cataract surgery by our phaco-sandwich technique through the self sealing sclero-corneal tunnel incision without phacoemulsification. 96 eyes of 88 patients with age-related cataracts underwent small incision suture less cataract surgery without phacoemulsification. All eyes were operated by the phaco-sandwich technique through sclerocorneal tunnel with 6 mm frown-shaped external scleral incision. 6 mm single piece PMMA lens was implanted in the capsular bag. Patients were evaluated at 1 week, 4 weeks and 12 weeks post-operatively. Ninety six eyes of eighty eight patients were our cohort. During the first post-operative week 8 eyes (8.3%) had uncorrected visual acuity (UCVA) of 6/6. By the end of 12 post-operative weeks, 33 eyes (34.5%) had UCVA of 6/6. 64 (66.7%), 72 (75%) and 80 (83.3%) eyes had best correctable visual acuity (BCVA) of 6/6 after 4 weeks, 8 weeks and 12 weeks respectively. 64 (66.7%) eyes after 4 weeks, 72 (75%) after 8 weeks and 80 (83%) after 12 weeks had best correctable visual acuity (BCVA) of 6/6. Suture less, small-incision cataract surgery is an economical, safe and effective method of managing cataract cases. This technique also ensures satisfactory and rapid rehabilitation for patients. This procedure can be effectively applied to clear the backlog of cataract-related blindness in places wherein the resources for phaco facilities are not available.Journal of Ayub Medical College, Abbottabad: JAMC 18(4):53-7.