11. 5 Year follow-up of femtosecond laser assisted cataract surgery on patients with preexisting corneal astigmatism

Pham Thi Minh Khanh, Nguyen Xuan Hiep, Pham Thi Thu Thuy

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Abstract

Effective management of astigmatism is critical to achieve optimal visual quality after refractive cataract surgery. This study assessed the long-term clinical efficacy and safety of femtosecond laser assisted cataract surgery for correcting corneal astigmatism. Data were obtained from medical records spanning preoperative notes, postoperative follow-up records at 1 week, 1 month, 3 months, 1 year, 3 years and 5 years. A total of thirty-four eyes with cataract and corneal astigmatism (> 0.50D) were treated with corneal arcuate incisions and femtosecond-laser assisted cataract surgery at Vietnam National Eye Hospital between January 2017 and February 2023. Preoperatively, the average corneal astigmatism was 1.63 ± 0.886D. The postoperative refraction spherical equivalent was within ± 0.50D and ± 1.0D at 3 months, in 91.2% and 100% of the eyes respectively. Corneal astigmatism decreased to 0.53 ± 0.628D at third month after surgery and remained stable at 5 years. Surgically induced astigmatism was 1.09 ± 0.413D, indicating an under-correction. No complications were recorded. In conclusion, femtosecond laser assisted cataract surgery was shown to be both safe and effective on the long-term in the management of cataract patients with preexisting corneal astigmatism.

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References

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