In the United States the proportion of patients with intermediate uveitis is estimated to be 4 8 of uveitis cases in referral centers.

Brushfield spots are small, white or grayish brown spots on the periphery of the iris in the human eye due to aggregation of connective tissue, a normal iris element.

Anterior to the lens is the iris, which regulates the amount of light entering into the eye.

Petachi has undergone an operation on his right eye to make it match the retinal pattern of the US President, which he uses to circumvent iris recognition security at an American military base in England.

In hyperthyroid stare (Dalrymple sign) the eyelids are retracted upward more than normal (the normal position is at the superior corneoscleral limbus, where the white of the eye begins at the upper border of the iris).

In lid lag (von Graefe's sign), when the patient tracks an object downward with their eyes, the eyelid fails to follow the downward moving iris, and the same type of upper globe exposure which is seen with lid retraction occurs, temporarily.

Naseem Tarawnah over at The Black Iris linked up to Top50Jo on his blog as a mental break from all the cynicism and the daily realities that can make you forget how great Jordan really is, while Roba Al Assi from And Far Away borrowed some from other tweeps and classified them into different categories