Can Droopy Eyelids Affect Vision?

It is possible that your droopy eyelids are causing your vision problems. I'm surprised you didn't mention this to the ophthalmologists you consulted. I would suggest going back to one of them, alerting him or her to your suspicion about your eyelids and requesting a visual field test. If the test is positive, you may qualify for a medically necessary blepharoplasty (eyelid surgery) that could be covered by your insurance.
You should also consult with a facial plastic surgeon to have your eyelids evaluated; whether the surgery is covered by insurance or not, your eyelids seem to be causing you distress and fatigue and you may benefit from blepharoplasty. You'd have the added benefit of looking younger and more alert. I hope this helps.

Droopy eyes can be caused by a variety of factors including excess upper eyelid skin, brow descent and eyelid ptosis. Although none of these conditions affects visual acuity, they all have the potential to affect vision by decreasing the patient's visual field.Under these circumstances, it's appropriate to consult a board certified plastic surgeon. This surgeon should be able to formulate a treatment plan that addresses your anatomic findings and improves your vision.

Droopy eyelids can disrupt your vision.  I recommend you book a consult with a board-certified facial plastic surgeon who can evaluate the area and determine if you would be a good candidate for a blepharoplasty procedure.