Symptoms depend on which muscles are affected. For example, when weakness affects muscles of the chest, people may have difficulty breathing. When weakness affects muscles that control the eyes, people may have double vision. Complete muscle weakness causes paralysis.
The choroid is the layer of blood vessels and connective tissue between the sclera (white of the eye) and retina. It is part of the uvea and supplies nutrients to the inner parts of the eye.
Meibomian gland dysfunction (MGD) may be one of the most common eye problems you've never heard of. Its odd-sounding name is probably part of the problem. Another name for MGD is meibomianitis, which sure isn't any easier to remember! Meibomian (my-BOH-mee-an) refers to a particular type of gland in the eyelids.