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Abstract
Methods: Flaps were created using the One Use-Plus SBK microkeratome (intended flap 90æm) in 100 eyes of 50 patients. Flap thickness was measured using AS OCT one week after surgery. Results: The mean achieved central corneal flap thickness in both eyes was 88.67±7.19, 1.33æm thinner than the intended 90 æm thickness (difference from intended thickness -1.33±7.19) with a p value of 0.067 which is statistically insignificant (p>0.05). The mean achieved central corneal thickness in the right eye was 88.56 ± 7.95 om, (ranging from 70 om to 112æm), 1.44 æm thinner than the intended 90 æm (difference from intended thickness -1.44 ±7.95) thickness with a p value of 0.206 which is statistically insignificant ( p>0.05). The mean achieved central corneal flap thickness in the left eye was 88.78 ± 6.41 om,(ranging from 77æm to 105æm) showing a difference from intended thickness of -1.22±6.41æm deviation from the intended thickness that is statistically insignificant (p value of 0.185, p>0.05). Conclusion: In the current study it was found that the use of the One Use-Plus SBK microkeratome for creating an SBK flap is safe and effective. The results of the current study were comparable to the results in previous studies using a femtosecond laser. In conclusion, our results indicate that the the One Use-Plus SBK microkeratome created flaps with good central accuracy, predictability and reproducibility, with variable increase in flap thickness towards the periphery