الفهرس 
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Abstract
Excimer laser surgery is an effective method for the correction of sphero-cylindrical refractive errors of the eye. Although advances in technology were initially focused on improving the precision of refractive outcomes, recent efforts attempt to improve the optical quality of vision after such surgery.
This study included 30 eyes (17 patients) treated with wavefronttguided ablation. The mean age of the patients was 30 years with myopia up to -8.00 D and astigmatism up to ±5.00 D.
None of the patients had keratoconus, current or previous history of ocular abnormality, thin corneas (less than 500 microns), or autoimmune disease.
Preoperatively, a full ophthalmologic examination was performed
for all patients including:
1. Uncorrected visual acuity (UCV A).
2. Best spectacle corrected visual acuity (BSCVA).
3. Manifest refraction, both subjective and objective.
4. Slit-lamp biomicroscopy.
5. Goldmann applanation tonometery.
6. Fundus examination by indirect ophthaloscopy.
7. Corneal examination using Oculus Pentacam.
8. Wavefront analysis of eye aberrations usmg WaveScan.