Post Cataract Surgery, my Eyes Seem to Be Different Sizes. Is This Possible?

One eye should not be smaller than the other, one of your eyelids may be drooping. 

 

Please see your ophthalmologist immediately, as this can have a number of causes and some of them are significant.  If the drooping lid is just post-surgical, it will usually resolve within six months without further treatment. However, it is important to have your ophthalmologist determine the cause and to ensure there is nothing serious going on as a result of your cataract surgery.

The most common reason might be a little ptosis after the surgery. It usually resolved. Sometimes people with new monovision have a subtle squint as they adjust to using both eyes together. Finally, you could have some lingering inflammation or toxicity to drops or a complication related to drugs injected under the skin of the eye. In any case, see your surgeon soon and take some pictures. 

The eyelid may droop more after cataract surgery. This is not common however. Patients sometimes become more observant of their eyelid position once their vision is clearer and glasses are no longer needed.