100%. 100 out of 100 patients get post-op dry eyes for sure.
However, patients in their 20s and 30s can recover very fast. The younger the patient, the faster they recover. Typically, they only require the hydration droplets for about 4 weeks before they feel so comfortable that they do not continue.
Patients in their 40s and 50s would typically take the full 3-4 months to recover, and they would still go to the pharmacy to purchase moisturizing eye drops.
A fit and healthy person will always recover. However, when you are dealing with patient with systemic dry eyes such as thyroid patients, rheumatoid patients or people with systemic auto-immune disease, they may never recover so we try not to perform LASIK on this group of patients.
