###Human: Is headache a side-effect of Nevanac ophthalmic suspension? ###Assistant: Hello. No, Nevanac (Nepafenac) does not have such side effects. But, I suggest you reduce the frequency of Nevanac to twice daily after 15 days and then to once at bedtime after next 15 days. You said you are wearing -2.75 in the right and -3.75 in left. This is a spherical error but your prescription shows that along with spherical error you have a cylindrical error too. -0.50 at 60 degrees in right and -0.50 at 14 degrees in left. If that is not incorporated in your glasses please include it because not using cylindrical power along with spherical can cause a headache. If Nevanac does not work in next three to four days you can try Tobramycin plus Fluorometholone eye drop twice daily for seven days. Do not use it for more than seven days. Also, get yourself checked for any near vision error, that is presbyopia. For more information consult an eye care ophthalmologist online -->