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Why are Miotics contraindicated in neovascular glaucoma?
Miotics are generally contraindicated, because the agents are usually ineffective, increase inflammation, worsen angle closure from synechiae, and decrease uveoscleral outflow.
Why is atropine used in neovascular glaucoma?
Atropine increases uveoscleral outflow and diminishes congestion, helping make the patient more comfortable. You should avoid anticholinergics such as pilocarpine because they can potentiate inflammation. You can also do surgery to treat the high pressure.
Can Avastin cause glaucoma?
Intravitreal bevacizumab (Avastin) causing acute glaucoma: an unreported complication.
What is uncontrolled neovascular glaucoma?
Neovascular glaucoma (NVG) is a severe form of secondary glaucoma characterized by proliferation of fibrovascular tissue in the anterior chamber angle.
How Miotics treat glaucoma?
These medications reduce eye pressure by increasing the drainage of intraocular fluid through the trabecular meshwork. Cholinergics can be used alone or combined with other glaucoma medications.
How does Rubeosis Iridis cause glaucoma?
Rubeosis iridis is defined as neovascularization of the iris characterized by numerous coarse and irregular vessels on the surface and stroma of the iris. These new blood vessels may cover the trabecular meshwork, cause peripheral anterior synechia and give rise to secondary glaucoma.
What is the treatment for neovascular glaucoma?
The mainstay of this treatment component is panretinal photocoagulation (PRP), which reduces the production of vasoproliferative factors from ischemic retina. If performed early during the neovascular process, PRP can induce the regression of both anterior and posterior segment neovascularization.
Who is at risk for neovascular glaucoma?
Prevention should be focused on preventing the most common underlying causes of neovascular glaucoma, including retinal vein blockage and diabetic retinopathy. Risk factors for these retinal diseases include age, high blood pressure, diabetes, and heart disease.
Can bevacizumab treat neovascular glaucoma?
Although intravitreal injection of bevacizumab has not received FDA approval, bevacizumab has been widely used off-label to treat VEGF-mediated ocular conditions such as choroidal neovascularization secondary to age-related macular degeneration, diabetic macular edema, CRVO-associated macular edema and as an adjunctive …
Does Avastin treat glaucoma?
Therefore, intravitreal Avastin may be safely injected in patients with and without glaucoma for the treatment of diagnosed retinal disorders without risk of intraocular pressure change.
Where should Miotics be placed when administered?
If the angle opens with a miotic, complete dislocation must be suspected. The patient should be placed in a supine position to allow posterior migration of the lens, and be given an oral hyperomotic agent and topical anti-hypertensive drops.
What do you mean by Miotics?
n. A substance that causes constriction of the pupil of the eye.