In eye prescriptions, OD stands for 'Oculus Dexter,' which means your right eye. It indicates which eye to treat, not how many times a day to use it. You should apply exactly one drop into your right eye. The daily frequency depends on the strength of Nepaflam prescribed: Nepaflam 0.3% is typically used once daily, while Nepaflam 0.1% is usually used three times daily. Please check your prescription bottle for a frequency term (like QD for once daily) or contact your ophthalmologist or pharmacist to confirm your exact daily schedule.