My Eyeballs Feel "Cold" and Irritated All the Time 5 Months After Lower Bleph.

Without looking at your photo, it is likely you are talking about lower eyelid retraction/ectropion, with inability to fully close your eyes or blink.  It may get better.  You should see an oculoplastic surgeon for evaluation and possible treatment.  In the meantime, lubricate your eyes.

Unfortunately, transcutaneous lower blepharoplasty is notorious for damaging the muscle fibers of the lower eyelid right at the lid margin.  These fibers are the very most important for helping move tears on the surface of the eye.  In the general plastic surgery literature there are very influential papers suggesting that it is OK to do this type of eyelid surgery because the motor nerves come in from the side of the eyelid.  There is actually very little to support this and very good papers that suggest the the nerves come from below to supply the lid margin muscle.  This of course is consistent to what we see.  Your general plastic surgeon does not own or understand how to use the equipment to assess you for dry eye.  It is possible that time will help you but honestly, 5 months is a long time.  You might need reconstructive eyelid surgery.  However, I strongly recommend finding a cornea specialist in your community to like to provide patient care.  This individual can help manage your dry eye.

A dry eye can have many causes after a lower lid blepharoplasty. In order to fully assess the situation and cause of the dryness that you are now experiencing, we would recommend that you see your plastic surgeon for for an eye examination, and a schirmer's test to make sure you have an adequate tear film.