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Aqueous humor blockage is an obstruction to the normal flow or drainage of the eye's clear fluid, which can raise pressure and damage the optic nerve. Blockage may occur at the pupil (pupillary block) or within the drainage angle and trabecular meshwork. Symptoms range from none to severe pain and halos in acute attacks. Identifying the site of blockage guides therapy.
read more about aqueous humor blockage ...Causes include narrow angles, lens swelling, neovascular membranes, inflammation, or debris from trauma and surgery. Certain medications can precipitate angle closure in susceptible eyes. Rarely, tumors or structural anomalies obstruct flow. Gonioscopy and imaging reveal the mechanism.
When the drainage angle closes, fluid inside the eye cannot exit normally. Pressure rises quickly, causing eye pain, redness, and blurred vision until the obstruction is relieved and normal outflow is restored.
You should see your eye doctor if you notice sudden or persistent changes in your vision such as blurriness, flashes of light, floaters, or eye pain. Redness, swelling, or discharge that does not improve with basic care also warrants a checkup. Even if symptoms seem mild, getting a professional evaluation can help detect problems early and prevent complications. Regular eye exams are also important to monitor your overall eye health and keep your vision clear.
Treatment lowers pressure and opens the blocked pathway. Acute angle closure needs prompt drops, oral agents, and laser peripheral iridotomy to create a new fluid route. Open angle blockage often responds to pressure lowering drops and selective laser trabeculoplasty; surgery is used when needed. Long term follow up protects the optic nerve.
Severe eye pain, headache, nausea, halos around lights, and sudden blur suggest acute angle closure and require immediate care. Do not wait for symptoms to fade. Early treatment preserves vision. Family members of affected patients should be screened.
Examination includes pressure measurement, corneal clarity, pupil reaction, and a careful view of the drainage angle with gonioscopy. Ultrasound or anterior segment OCT can show pupil block, plateau iris, or lens factors. Response to test medications also informs the plan. The exact mechanism shapes the procedure choice.
Can it recur? Yes, mechanism based treatment reduces recurrence.
Will glasses help? Glasses do not treat pressure; medical or laser therapy is needed.
Is both eyes at risk? Fellow eyes often share anatomy and are checked routinely.
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