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EVALUATION OF CORNEAL ASTIGMATISM CORRECTION BY SINGLE ARCUATE INCISION AND MAIN INCISION IN FEMTOCATARACT SURGERY
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Abstract
Background: Femtosecond laser-assisted phacoemulsification with arcuate incision is used to manage the low to moderate corneal astigmatism. The single arcuate incision which opposites the main incision reduces a arcuate incision on limbus and surgecially induced astigmatism. Purpose: To investigate corneal astigmatism reduction and corrected distance visual acuity after femtosecond laser-assisted phacoemulsification with single arcuate incision. Design: uncontrolled prospective interventional study. Method: 64 eyes of 57 patients with preexisting corneal astigmatism ≤2.5D and cataract had indicated femtosecond laser assisted phacoemulsification with arcuate incision at Sai Gon Eye Hospital from March to August 2025. The uncorrected and corrected distance visual acuity, refraction spherical equivalent, corneal astigmatism were measured (using an Pentacam) before surgery and 1 week, 1 month and 3 months after surgery. Results: Mean length of single arcuate incision was 43,94 ± 7,04o (range 33o to 60o). The average of preoperative corneal astigmatism was 1,21 ± 0,55 D, decreased to 0,60 ± 0,37 D in 3rd month after surgery. Surgical induced astigmatism (SIA) was 1.05 ± 0.44D and CI<1 this result indicated undercorrection. The uncorrected distance visual acuity improved from 0,61 ± 0,37 logMAR to 0,10 ± 0,09 logMAR postoperatively (p < 0,001). Conclusions: femtosecond laser-assisted phacoemulsification with arcuate incision which is effectively and safely reduces low to moderate corneal astigmatism.
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Keywords
arcuate incision, femtocataract, astigmatism.
References
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