Narrow-Angle Glaucoma

Narrow-angle glaucoma (also called Closed-Angle Glaucoma) is much more rare and is very different from open-angle glaucoma in that eye pressure usually goes up very fast. This happens when the drainage canals get blocked or covered over. The iris gets pushed against the lens of the eye, shutting off the drainage angle. Sometimes the lens and the iris stick to each other. This results in pressure increasing suddenly, usually in one eye. There may be a feeling of fullness in the eye along with reddening, swelling and blurred vision.

Narrow Angle Glaucoma

The drainage canals get blocked or covered over


FAQ


Symptoms of Narrow-Angle Glaucoma

The onset of acute narrow-angle glaucoma is typically rapid, constituting an emergency. If not treated promptly, this glaucoma produces blindness in the affected eye in three to five days. Symptoms may include:

  • Inflammation and pain
  • Pressure over the eye
  • Cloudy cornea
  • Blurring and decreased visual acuity
  • Extreme sensitivity to light
  • Seeing halos around lights
  • Nausea and/or vomiting
  • Moderate pupil dilation that’s non-reactive to light

Causes of Narrow-Angle Glaucoma

  • Defect in the eye structure
  • Anything that causes the pupil to dilate — dim lighting, dilation drops
  • Certain oral or injected medications
  • Blow to the eye
  • Diabetes-related growth of abnormal blood vessels over the angle

Diagnosing Narrow-Angle Glaucoma

Everyone should be checked for glaucoma at around age 35 and again at age 40. Those considered to be at higher risk for narrow-angle glaucoma, including those who are Asian, farsighted or over the age of 60, should have their pressure checked every year or two. Because of the rapid, potentially devastating results of narrow-angle glaucoma, you should seek medical treatment immediately if you experience any of the above symptoms.

During eye exams, your doctor will use tonometry to check your eye pressure. After applying numbing drops, the tonometer is gently pressed against the eye and its resistance is measured and recorded. Tonometry is used to check your eye pressure.

An ophthaolmoscope can be used to examine the shape and color of your optic nerve. The ophthalmoscope magnifies and lights up the inside of the eye. If the optic nerve appears to be cupped or is not a healthy pink color, additional tests will be run. An ophthalmoscope is used to examine your optic nerve.

Gonioscopy is used to determine whether the angle where the iris meets the cornea is open or closed, a key difference between open-angle glaucoma and narrow-angle glaucoma. Goniscopy is used to help your glaucoma type.

Treatment for Narrow-Angle Glaucoma

Laser iridotomy is a common treatment for narrow-angle glaucoma. During this procedure, a laser is used to create a small hole in the iris, restoring the flow of fluid to the front of the eye. In most patients, the iridotomy is placed in the upper portion of the iris, under the upper eyelid, where it cannot be seen.

Filtration surgery is performed when medicines and/or laser surgery are unsuccessful in controlling eye pressure. During this microscopic procedure, a new drainage channel is created to allow fluid to drain from the eye.

SCHEDULE AN APPOINTMENT



If you would like to learn more about Narrow-Angle Glaucoma call 1-800-244-9907 to make an appointment at Central Valley Eye Medical Group.

CONTACT US FOR MORE INFORMATION

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Dear Friends,

We at Central Valley Eye hope you and your families are well. With COVID-19 infections continuing to rise, we are taking all necessary precautions to keep patients and staff healthy as we continue to provide the eye care that our community needs:
  • Whenever appropriate, we are rescheduling any patients with cough or cold symptoms
  • We have adjusted our schedule to decrease the number of patients in our waiting rooms. You can expect on average between zero and one patient to be in the waiting room at any given time.
  • We have increased our already strict sanitizing practices to extend into the waiting areas and halls.
  • Whenever appropriate, we are diverting visits to telemedicine (by cell phone, tablet, laptop, or desktop). Please contact us for further details at 209-952-3700.



    Additionally, some of our office locations may be closed on certain days. If you are unsure whether to come in for your visit, please call us.

    The doctors at Central Valley Eye will not be performing any non-urgent surgeries until further notice. Our surgery coordinators will be contacting patients to reschedule the surgeries that need to be postponed.

    If you have any questions, please do not hesitate to contact us at 209-952-3700.

    Warmest regards,

    Brandy Simpson
    Practice Manager
    Central Valley Eye Medical Group, Inc.
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