Posterior synechia also cause glaucoma, but with a different mechanism.

If the pupil can be fully dilated during the treatment of iritis, the prognosis for recovery from synechia is good.

In medicine, synechia can refer to:

Asherman's syndrome (uterine synechia)

Dilation of the pupil in an eye with synechia can cause the pupil to take an irregular (non-circular) shape as shown in the photograph.

Anterior synechia causes closed angle glaucoma, which means that the iris closes the drainage way of aqueous humour which in turn raises the intraocular pressure.

In posterior synechia, the iris adheres to the lens, blocking the flow of aqueous humor from the posterior chamber to the anterior chamber.

Mydriatic/cycloplegic agents, such as topical atropine, are useful in breaking and preventing the formation of posterior synechia by keeping the iris dilated and away from the crystalline lens.

The adjective "synechological" is used in the same general sense; "synechology" is a theory of continuity or universal causation; "synechia" is a term in ophthalmology for a morbid union of parts.

A synechia is an eye condition where the iris adheres to either the cornea (i.e. anterior synechia) or lens (i.e. posterior synechia).

He has also held various other shows and workshops on photography, including positions at Naropa University starting in 1974 and the Synechia Arts Center located in Middletown, New York; his works have been published by Aperture and Time-Life.