I have drooping eyelids and eye strain. what can i do?

See doctor: You need to rule out myasthenia or horner's syndrome. Most likely its just typical age-related ptosis, depending on your age, of course.

See an eye doctor: Tjhe eye strain needs to be properly diagnosed. If it is due to drooping eyelids, the solution is an eyelid lifting surgery. If the strain is due to vision itself then corrective glasses or contacy lenses are the solutions. A dry syndrome can also produce eye strain which by proper diet and eyedrops can be aleviated. Youe eye doctor can distinguish the cause.