Malignant Glaucoma was first described by Graefe in 1869 as an elevated IOP with a shallow or flat anterior chamber usually as a result of ocular surgery. Malignant glaucoma has taken other names over time like aqueous misdirection, ciliary block glaucoma, and lens block angle closure. It is one of the most complex and difficult of all glaucomas to be treated and it can even progress to complete blindness without proper treatment.
Treating malignant glaucoma is difficult to treat and diagnose. The slit-lamp examination will reveal the anterior displacement of the lens-iris diaphragm in phakic and pseudophakic patients. You can diagnose malignant glaucoma physically by finding unequal anterior chamber depths, increasing myopia, and progressive shallowing of the anterior chamber. If the patency of the iridectomy is in doubt a laser iridotomy can be performed again to exclude pupil block. If doctors can find a shallow anterior chamber associated with a wound leak, it is easy to diagnose you with hypotony. If the hypotony is without a wound leak, it may be associated with choroidal effusion or with excessive drainage into the subconjunctival space. If the iridotomy is patent high, choroidal hemorrhage should be suspended either clinically or by ultrasound examination
Malignant Glaucoma treatment is aimed at lowering IOP with aqueous suppressants, narrowing the vitreous with hyperosmotic agents, and attempting posterior displacement of the lens-iris diaphragm with a powerful cycloplegic such as atropine. A laser iridotomy should be performed if one is not available or if patency of a former iridotomy cannot be established. The effect of medical therapy is not immediate, but about 50 percent of malignant glaucoma cases will be removed within five days.
If medical treatment is unsuccessful, YAG laser therapy may be used to disturb the posterior capsule and anterior hyaloid face. When laser therapy is not feasible or is unsuccessful, posterior vitrectomy must be performed with disruption of the anterior hyaloid face. If you are diagnosed with glaucoma or showing symptoms. Explore our website to learn more about Glaucoma Treatment and other Eye Treatment.
Malignant glaucoma, also known as ciliary block glaucoma or aqueous misdirection syndrome, is a rare but serious form of glaucoma characterized by a sudden and severe increase in intraocular pressure (IOP) due to the misdirection of fluid within the eye. Unlike regular glaucoma, which typically involves increased pressure from impaired drainage of fluid (aqueous humor) from the eye, malignant glaucoma occurs when fluid accumulates behind the iris, pushing it forward and causing the angle between the iris and cornea to close.
Common symptoms of malignant glaucoma may include sudden and severe eye pain, decreased vision, halos around lights, redness, nausea, and vomiting. It’s essential to seek immediate medical attention if experiencing any of these symptoms, as malignant glaucoma can rapidly lead to irreversible vision loss if left untreated.
The risk factors for developing malignant glaucoma are not entirely understood, but certain factors may increase the likelihood of its occurrence. These include previous eye surgeries, particularly procedures involving the anterior chamber of the eye, such as cataract surgery or glaucoma surgery. Individuals with a history of certain eye conditions, such as angle-closure glaucoma or anterior uveitis, may also have a higher risk.
Diagnosis of malignant glaucoma involves a comprehensive eye examination, including measurement of intraocular pressure, assessment of the angle structures using gonioscopy, and evaluation of the optic nerve. Imaging tests, such as ultrasound or optical coherence tomography (OCT), may also be used to aid in diagnosis. Treatment typically involves a combination of medications to reduce intraocular pressure, such as topical and oral medications, along with surgical interventions to restore normal fluid dynamics within the eye. Surgical options may include laser procedures or more invasive surgical techniques, depending on the severity of the condition.
While it may not be possible to prevent malignant glaucoma entirely, certain lifestyle changes and precautions may help manage the condition and reduce the risk of complications. These include attending regular eye exams to monitor intraocular pressure and overall eye health, following a healthy lifestyle that includes maintaining a balanced diet and regular exercise, avoiding activities that may increase intraocular pressure, such as heavy lifting or straining, and adhering to any prescribed medications or treatment plans as directed by an eye care professional. Additionally, individuals with a history of eye surgery should be vigilant about attending follow-up appointments and promptly report any changes in their vision or symptoms to their healthcare provider.
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