Evaluation of Different Lenticule Diameters in Myopic Astigmatism Correction With SMILE Procedures
Refractive Errors, Myopic Astigmatism
About this trial
This is an interventional treatment trial for Refractive Errors focused on measuring SMILE, Myopia, Refractive Surgery, Astigmatism, Small Incision Lenticule Extraction
Eligibility Criteria
Inclusion Criteria: Age groups between 18 and 50 years Myopic astigmatism with up to -10.00 D spherical equivalent (SE) and a minimum astigmatism of -1.0 D and a maximum of -5 D. The astigmatism will be divided into low astigmatism (<0.75 D), moderate astigmatism (1.5- 3 D) and high astigmatism (>3 D). Corrected distance visual acuity (CDVA) of 0.7 or better (decimal) Exclusion Criteria: Thin corneas (< 490 μm) Proven or suspicious cases of corneal ectatic conditions by corneal tomography Previous ocular surgeries Patients taking systemic steroids, immunosuppressants, oral contraceptives, or antidepressants Pregnant females Corneal scars or any ocular pathology likely to affect visual outcomes
Sites / Locations
- Al Watany Eye HospitalRecruiting
Arms of the Study
Arm 1
Arm 2
Active Comparator
Active Comparator
Control
Study cases
group A, SMILE procedure with lenticule diameter of 6.5 mm
group B, SMILE procedure with lenticule diameter of 7.0 mm