Image 15 of 34
Summary
Comment
Loss of sympathetic nervous system input to (in this case) right eye.

Note that right pupil is smaller than left. Also that right eyelid covers a greater portion of eye than on left (known as ptosis). The etiology in this case was due to tumor infiltrating the sympathetic chain.

Image Credit
Charlie Goldberg, M.D.

Horner's Syndrome 2