Blepharitis is a common chronic condition that affects the eyelids, causing inflammation along the eyelid margins.

Abdominal pain is considered chronic if it lasts for more than three months. The pain may be constant or it can come and go over the three-month period or longer. There are many health conditions, ...

Purpose: To investigate the changes in meibomian gland (MG) structure in allergic conjunctivitis (AC) patients using an intelligent quantitative analysis algorithm and to explore the relationship ...

After developing chronic pain, I started looking into what scientists do — and still don’t — understand about the disease. Here is what I learned. By Jennifer Kahn Most of us don’t think ...

I think we’re past the point where I have to explain that chronic pain is not the result of imbalanced humors or a wandering uterus or possession by demons. But for more modern skeptics ...