What is peripheral anterior synechiae?
Peripheral anterior synechiae (PAS) refers to a condition in which the iris adheres to the angle. PAS can develop in various ocular conditions, including: ocular inflammation, a post-traumatic condition, after cataract surgery, or with an iris bombe in a pupillary block glaucoma.
How is peripheral anterior synechiae treated?
Medical Care Topical α-agonists, β-blockers, carbonic anhydrase inhibitors, and prostaglandin agonists may be useful in lowering intraocular pressure in eyes with PAS. Miotics are useful in the treatment of pupil block due to primary angle-closure but may exacerbate angle closure due to posterior pushing mechanisms.
Does synechiae affect vision?
Synechiae are most commonly formed during states of inflammation and cellular proliferation. Patients presenting with synechiae typically have an underlying inflammatory disease process such as uveitis and will present with related symptoms, such as redness, photophobia, and/or decreased vision.
Can synechiae be treated?
If the pupil can be fully dilated during the treatment of iritis, the prognosis for recovery from synechia is good. This is a treatable status. To subdue inflammation, topical corticosteroids can be used. A prostaglandin analogue, such as travoprost, may be used if the intra-ocular pressure is elevated.
How is posterior synechiae treated?
Posterior synechiae are at the pupil margin where the iris is adherent to the anterior lens capsule, which prevents dilation and makes cataract surgery more challenging. Cataract surgery is a good time to manage these synechiae and help restore ocular anatomy and function.
How do you break posterior synechiae?
In this case, a sympathomimetic drug, such as phenylephrine 10%, should be administered topically in your office at follow-up. This combination of steroid, cycloplegic and sympathomimetic typically breaks most cases of posterior synechiae.
What causes synechiae in the eye?
The cause of synechiae is typically a result of inflammation in the eye, such as from uveitis or as a result of trauma.
How do you break a synechiae?
By utilizing a pledget, a small wad of cotton, we can administer a large, sustained dose of dilating agents to break the synechia. After the pledget is removed, re-evaluate the pupil and synechia. Upon discharge, patients are prescribed the appropriate anti-inflammatory agents as well as a cycloplegic agent.
How do you break anterior synechiae?
What does Iridodonesis mean?
tremulousness of
Medical Definition of iridodonesis : tremulousness of the iris caused by dislocation or removal of the lens : hippus.
Does posterior synechiae cause glaucoma?
Posterior Synechiae If synechiae form around the entire circumference of the pupil, iris bombé occurs, preventing aqueous flow to the anterior chamber, and secondary glaucoma almost invariably follows.