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Normal Tension Glaucoma: Symptoms, Causes & Treatment in Orange CountyExpert Eye Care from Orange County's Leading Specialists

Expert information about normal tension glaucoma from Orange County's leading eye care specialists. Learn about symptoms, causes, diagnosis, and the latest treatment options.

Medically reviewed by Dr. Alexander Bonakdar, O.D. · Updated February 2026

What is Normal Tension Glaucoma?

Normal Tension Glaucoma (NTG), also called low-tension or low-pressure glaucoma, is a form of open-angle glaucoma where optic nerve damage and vision loss occur despite eye pressure (IOP) being within the normal range (10-21 mmHg). This condition is often under-diagnosed because standard glaucoma screenings focus on elevated pressure. Risk factors include family history, migraines, low blood pressure, and Japanese ancestry.

At EyeCare Center of Orange County, we specialize in the diagnosis and treatment of normal tension glaucoma. Our experienced optometrists use state-of-the-art technology to provide comprehensive care and help preserve your vision.

Common Symptoms of Normal Tension Glaucoma

If you're experiencing any of these symptoms, schedule a comprehensive eye examination:

Gradual peripheral vision loss
Often no symptoms until advanced
Tunnel vision in late stages
Difficulty with night vision
Difficulty adjusting to dim lighting
Subtle central vision changes

Treatment Options for Normal Tension Glaucoma

We offer comprehensive treatment options tailored to your specific needs:

Pressure-lowering eye drops (prostaglandins, beta-blockers)
Selective Laser Trabeculoplasty (SLT)
Minimally Invasive Glaucoma Surgery (MIGS)
Trabeculectomy for advanced cases
Blood flow optimization strategies
Neuroprotective therapies
Target IOP 30% below baseline
Regular visual field monitoring

Why Choose EyeCare Center of Orange County?

Over 30 Years of Experience

Dr. Alexander Bonakdar has been serving Orange County since 1991 with specialized expertise in glaucoma.

Advanced Diagnostic Technology

We utilize the latest equipment for accurate diagnosis and effective treatment of normal tension glaucoma.

Personalized Treatment Plans

Every patient receives customized care based on their unique needs and condition severity.

Comprehensive Eye Care

From diagnosis to treatment and follow-up care, we provide complete support throughout your treatment journey.

Frequently Asked Questions

What causes Normal Tension Glaucoma?

Normal Tension Glaucoma can be caused by various factors including genetics, age, environmental conditions, and underlying health issues. A comprehensive eye examination can help determine the specific cause in your case.

How is Normal Tension Glaucoma diagnosed?

Diagnosis involves a thorough eye examination including vision tests, imaging, and specialized diagnostic procedures. Our advanced equipment allows for early detection and accurate diagnosis.

Is Normal Tension Glaucoma preventable?

While not all cases are preventable, regular eye exams, protective eyewear, proper nutrition, and managing underlying health conditions can help reduce risk factors. Early detection through routine screenings is crucial.

Does insurance cover Normal Tension Glaucoma treatment?

Most vision and medical insurance plans cover diagnostic exams and medically necessary treatments. We accept most major insurance plans and can help verify your coverage before treatment.

Don't Let Normal Tension Glaucoma Impact Your Vision

Schedule your comprehensive eye examination today and get expert diagnosis and treatment.