KMID : 0360220190600100946
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Journal of the Korean Ophthalmological Society 2019 Volume.60 No. 10 p.946 ~ p.952
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Long-term Results of Arcuate Keratotomy in Femtosecond Laser-assisted Cataract Surgery
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Bang Chan-Woo
Choi Jae-Won Han Sang-Youp
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Abstract
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Purpose: To investigate the long-term follow-up results of arcuate keratotomy in femtosecond laser-assisted cataract surgery.
Methods: The medical records of 78 patients (99 eyes) with corneal astigmatism >0.5 diopters (D) who underwent arcuate keratotomy concurrent with femtosecond laser-assisted cataract surgery were retrospectively reviewed. Uncorrected and corrected visual acuities and keratometric and higher order aberration outcomes were compared preoperatively and 2 years postoperatively.
Results: The mean uncorrected visual acuities and corrected visual acuities changed from 0.55 ¡¾ 0.31 D and 0.33 ¡¾ 0.26 D, preoperatively to 0.13 ¡¾ 0.19 D and 0.07 ¡¾ 0.09 D, 2 years postoperatively. The mean preoperative corneal astigmatism was -1.15 ¡¾ 0.66 D. This was reduced to -0.79 ¡¾ 0.38 D at 1-2 days after surgery (p < 0.001), followed by no significant change for 2 years. The mean target-induced astigmatism was 1.15 ¡¾ 0.66 D preoperatively, and the mean surgically-induced astigmatism and difference vector were 0.69 ¡¾ 0.43 D and 0.83 ¡¾ 0.48 D, 2 years postoperatively. The mean correction index was 0.68 ¡¾ 0.45, 2 years postoperatively. There was no significant difference in higher order aberrations except 4 mm and 6 mm total higher order aberrations and 6 mm trefoil between preoperatively and 2 years postoperatively.
Conclusions: Arcuate keratotomy concurrent with femtosecond laser-assisted cataract surgery is a safe and effective way to reduce corneal astigmatism which remained stable over 2 years of follow-up with below moderate astigmatism.
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KEYWORD
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Arcuate keratotomy, Astigmatism, Corneal cylinder, Femtosecond laser, Higher order abberation
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