A new method of analyzing vectors for changes in astigmatism. Proper method for calculating average visual acuity. Presented at: American Society of Cataract and Refractive Surgery Meeting April 10-14, 1999 Seattle, Wash. Limbal relaxing incision to correct corneal astigmatism. Architectural design of a self- sealing corneal tunnel, single-hinge incision. Architecture and construction of a self-sealing incision for cataract surgery. Incidence of astigmatism in cataract practice. Transconjunctival corneoscleral tunnel "blue line" cataract incision. Structural analysis of cataract incision construction. Refractive error and visual outcome after cataract extraction. Immersion ?-scan compared with partial coherence interferometry: outcomes analysis.
Packer M, Fine IH, Hoffman RS, Coffman PG, Brown LK. Radial keratotomy to treat myopic refractive error after cataract surgery. Oshika T, Yoshitomi F, Fukuyama M, Har? Y, Shimokawa S, Shiwa T, Sakabe I. The control eyes did not show a statistically significant change in topographic astigmatism.ĬONCLUSIONS: Limbal relaxing incisions performed during phacoemulsification surgery appear to be a safe, effective, and stable procedure to reduce pre-existing corneal astigmatism. A statistically significant reduction in the mean topographic astigmatism was seen in the cataract LRI eyes from 1.93☐.58 diopters (D) preoperatively to 1.02☐.60 D 6 months postoperatively (P<.05). No difference in postoperative BSCVA was noted between the groups. A statistically significant improvement in BSCVA was seen in control eyes from 0.8☐.6 before surgery to 0.2☐.2 at 1, 3, and 6 months after surgery (P<.01). RESULTS: A statistically significant improvement in BSCVA was seen in the cataract LRI eyes from 0.9☐.7 preoperatively to 0.1☐.1 at l, 3, and 6 months postoperatively (P<.01). Best spectacle-corrected visual acuity (BSCVA), uncorrected visual acuity (UCVA), and corneal topography were recorded preoperatively and 1, 3, and 6 months postoperatively. All limbal relaxing incisions were performed during phacoemulsification. Eyes were randomly divided into two groups: eyes that underwent cataract surgery with limbal relaxing incisions (cataract LRI group) and eyes that underwent cataract surgery only (control group). METHODS: Fifty eyes of 37 patients (mean age 66.5 years, range: 45 to 80 years) with cataract and coexisting topographic astigmatism were included in the study. PURPOSE: To evaluate the safety and efficacy of limbal relaxing incisions for the correction of corneal astigmatism during phacoemulsification.