LIMBAL RELAXING INCISIONS VERSUS PAIRED CLEAR CORNEAL INCISIONS IN CORRECTION OF PRE-EXISTING ASTIGMATISM DURING PHACO-EMULSIFICATION | ||||
| Egyptian Journal of Clinical Ophthalmology | ||||
| Article 2, Volume 8, Issue 1, June 2025, Page 7-15 PDF (392.19 K) | ||||
| Document Type: Original articles: include clinical trials, interventional research, Basic researches and clinically relevant laboratory investigations | ||||
| DOI: 10.21608/ejco.2025.443634 | ||||
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| Authors | ||||
| Abdellatife, Y.; Abdellatife, I.; Kamel, A.; Mahmoud, H. | ||||
| Ophthalmology dept., Faculty of Medicine, Sohag Univ., Sohag, Egypt | ||||
| Abstract | ||||
| Background: Modern cataract surgery patients have even higher standards and more complex requirements than in the past. Thanks to advancements in phacoemulsification, ocular biometry, formulas, and intraocular lens computation, surgeons can now correct refractive errors up to half a diopter of the desired spherical error. If cataract surgery is to achieve its goal of improving patients' postoperative vision to their expectations, it must address both spherical and corneal astigmatic abnormalities. Objectives: The aim of the current study was to compare limbal relaxing incisions with the paired opposite 4mm clear corneal incisions technique as regards efficacy of reduction of the pre-existing corneal astigmatism at the time of cataract surgery. Methods: Between October 2022 and September 2023, researchers at Sohag University Hospital performed a pro-spective randomized interventional trial using 118 eyes from 118 patients suffering from cataracts. We used a random assignment to administer one of two astigmatism removal techniques in order to ensure that people with varying degrees of astigmatism were treated fairly. Both the limbal relaxing incision (LRI) operation and the opposite clear corneal incisions (OCCI) surgery were offered to patients as part of the TOSS randomization process. Results: There were fifty-nine patients in each of the two groups. Each group's cases were matched for age and sex. The group who underwent limbal relaxing incisions had substantially greater K1 at 1 month, 3 months, and 6 months postoperatively compared to the control group that had opposite clear corneal incisions. The limbal relaxing incisions group showed substantially reduced K2 levels compared to the control group at 3 and 6 months postoperatively. Results from a vector analysis showed that the group that had limbal relaxing incisions had a much lower success rate, astigmatism corrected, and SIA than the group that had clear corneal incisions. Both methods were compared for their effectiveness in correcting astigmatism, and the results showed that limbal relaxing incisions and opposite clear corneal. Conclusion: The limbal relaxing incision group had significantly lower SIA, TIA, astigmatism corrected, and success rates compared to the opposite clear corneal incisions group at 3 months and 6 months postoperatively. Overall, both techniques appear to be effective in reducing corneal astigmatism. | ||||
| Keywords | ||||
| Cataract surgery; Phacoemulsification; limbal relaxing incisions; opposite clear corneal incisions | ||||
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