A lady wants LASIK surgery for her daughter. She asks for your opinion. All the following things are suitable for performing LASIK surgery except –: (A) Myopia of 4 Diopters, (B) Age of 15 years, (C) Stable refraction for 1 year, (D) Corneal thickness of 600 microns
Answer is B. Patient selection criteria for LASIK

Patients above 20 years of age
Stable refraction for at least 12 months
Motivated patients
Myopia up to -12D
The absence of corneal pathology
Corneal thickness > 500 m

​Contraindications of LASIK

Monocular patient
Infections eg: conjunctivitis
Glaucoma
Autoimmune disease
Thin cornea (< 450 microns)
Keratoconus
Poor endothelial cell count in the cornea (< 1500)
Dry eye
Diabetic retinopathy