Dry Eye Evaluation After Transepithelial PRK

Evaluation of Dry Eye Following Transepithelial Photorefractive Keratectomy in Comparison to Conventional LASIK: a Comparative Study

The aim of the study is to evaluate the severity of dry eye syndrome following excimer laser vision correction using no-touch all-laser photorefractive keratectomy in comparison to conventional lasik

Prospective interventional clinical study 2 groups: Group A : 20 eyes of 10 patients undergoing transepithelial PRK Group B: 20 eyes of 10 patients undergoing LASIK using mechanical microkeratome Tear Break Up Time and Schirmer 2 tests are used to evaluate severity of dry eye before surgery and 1 , 3 and 6 months postoperative Follow up period : 6 months

Inclusion Criteria

• Myopia -1 to -6 diopters
• Astigmatism -0.5 to - 4 diopters

Exclusion Criteria:

• Pregnancy and lactation
• Keratoconus
• Previous refractive surgery
• Previous herpetic keratitis