What is your approach to offering PRK for 1 diopter of myopia in patients over 45 with a corneal thickness of 450 microns and no keratoconus?  

I am not sure why you would treat this patient?. One diopter of myopia over 45 years old. The patient probably has pretty good reading and distance vision without glasses. What is the patient’s visual goal? They want 20/20 distance without correction and now lose all ability to read?