Commissures Iris Posterior

Posterior adhesions of the iris (synechiae iridis posteriores; synonym: posterior synechiae) are fusions of the iris with the anterior surface of the lens or vitreous body.

Posterior synechiae can occur in various inflammatory diseases of the anterior segment of the eye, such as iridocyclitis, uveitis, etc. They lead to impaired mobility of the iris and pupil, which in turn causes disorders of the hydrodynamics of the eye.

To treat posterior synechiae, mydriatics, anti-inflammatory drugs are used, and in case of severe adhesions, surgical methods (synechiolysis) are used. The prognosis depends on the cause of their occurrence and the timeliness of treatment.

Iris adhesions in the posterior segment of the eye are a violation of the transparency of the posterior sections of the eye cavity, which is the result of the formation of cicatricial adhesions and is characterized by pathological mobility in the middle of the posterior segment of the eye. They usually occur as a consequence of Fouch-Cauchy syndrome or other causes, but can also be spontaneous formations. The process is often accompanied by scleroplasty. The adhesions are in the form of a band, stretched tightly along the entire posterior surface of the iris and sometimes extending to the angle of the anterior chamber. Often the adhesive process is associated with a restriction in the rotation of the cornea into the eye, so its lateral edges first become noticeable, and after some time a secondary stretching of the pupil occurs