Unilateral Glaucoma Workup

Updated: Sep 05, 2017
  • Author: Ingrid U Scott, MD, MPH; Chief Editor: Hampton Roy, Sr, MD  more...
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Workup

Laboratory Studies

Lab studies are indicated based on the suspected etiology (eg, thyroid function test, vasculitis workup) of unilateral glaucoma.

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Imaging Studies

B-scan echography to evaluate for orbital tumor, foreign body, and extraocular muscle enlargement (in thyroid ophthalmopathy and other conditions with EVP); also indicated if fundus cannot be visualized [1]

CT scan of orbits to evaluate orbital fracture, foreign body, dilation of superior ophthalmic vein, and enlargement of cavernous sinus (present with carotid-cavernous sinus fistulae) [2]

Angiography to evaluate for arteriovenous anomalies

Orbital venography to evaluate for orbital varix

Color Doppler to evaluate for orbital varix

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Other Tests

In patients with increased EVP, gonioscopic examination may reveal reflux of blood in the Schlemm canal.

Ocular pulse amplitude, as measured by pneumotonometry, is a useful noninvasive tool to evaluate patients with carotid-cavernous fistulae. [3]

Malignancy workup for patients with superior vena cava syndrome, orbital tumors

Cardiac workup for patients with congestive heart failure

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