adhesion of the iris to cornea (anterior s), or lens (posterior s); plural is synechiae

adhesion of the iris to the lens or to the cornea

Adherence due to inflammation or scarring e.g,. : irido- crystalline synechia. ( synéchie, n.f)

In medicine, synechia refers to an adhesion, usually involving the iris (see article below) but also within the uterus as in Asherman's syndrome. ---- A synechia is an eye condition where the iris adheres to the either the cornea (i.e. anterior synechia) or lens (i.e. posterior synechia). Synechiae can be caused by ocular trauma or iritis and lead to certain types of glaucoma. It is sometimes visible on careful examination but usually more easily through an ophthalmoscope or slit-lamp.