Glaucoma is one of the leading causes of irreversible blindness worldwide, yet many people with the condition don’t know they have it. That’s because glaucoma typically develops gradually without noticeable symptoms until substantial vision loss has already occurred. It’s often called the “silent thief of sight” for this reason.
The good news is that with regular eye exams and early detection, glaucoma can be managed effectively. At Overlake EyeCare, we provide comprehensive glaucoma screening, diagnosis, and treatment at our Bellevue and Kirkland offices, helping patients across the Eastside protect their vision for life.
Key Takeaways
- Glaucoma damages the optic nerve, usually due to elevated eye pressure, and causes irreversible vision loss if untreated.
- Most people with early glaucoma have no symptoms, making regular eye exams essential for detection.
- Treatment focuses on lowering eye pressure to slow or stop disease progression.
- Options include eye drops, laser treatment, and surgery, depending on the type and severity.
- Overlake EyeCare offers glaucoma screening with advanced diagnostic technology at both Bellevue and Kirkland locations.
1. What Is Glaucoma?
Glaucoma is a group of eye conditions that damage the optic nerve, which carries visual information from your eye to your brain. In most cases, this damage is caused by abnormally high pressure inside the eye (intraocular pressure or IOP). However, glaucoma can also occur with normal eye pressure, which is why comprehensive screening is important.
The damage from glaucoma typically starts with peripheral (side) vision, which is why many people don’t notice it until significant vision loss has occurred. Once vision is lost to glaucoma, it cannot be restored. This is why early detection and treatment are so critical.
Risk Factors for Glaucoma:
- Age over 60 (risk increases with age)
- Family history of glaucoma
- African, Asian, or Hispanic heritage
- Elevated eye pressure
- Extreme nearsightedness or farsightedness
- Previous eye injury
- Long-term corticosteroid use
- Thin corneas
2. Types of Glaucoma
There are several types of glaucoma, each with different characteristics and treatment approaches:
Open-Angle Glaucoma (Most Common)
This is the most common form, accounting for about 90% of cases. It develops slowly over time as the eye’s drainage canals become less efficient. There are usually no early warning signs or symptoms. Vision loss begins with peripheral vision and progresses gradually.
Angle-Closure Glaucoma
This occurs when the iris bulges forward and blocks the drainage angle, causing a rapid increase in eye pressure. Acute angle-closure is a medical emergency with symptoms including severe eye pain, headache, nausea, and blurred vision. It requires immediate treatment to prevent permanent vision loss.
Normal-Tension Glaucoma
In this type, the optic nerve is damaged even though eye pressure is within the normal range. The exact cause isn’t fully understood, but treatment still focuses on lowering eye pressure to reduce further damage.
Comparing Glaucoma Types
| Type | Onset | Symptoms | Urgency |
|---|---|---|---|
| Open-Angle | Gradual (years) | None until advanced | Chronic management |
| Angle-Closure (Acute) | Sudden | Severe pain, nausea, vision changes | Emergency |
| Normal-Tension | Gradual | None until advanced | Chronic management |
3. How Glaucoma Is Detected
Because glaucoma usually has no early symptoms, the only way to catch it early is through regular comprehensive eye exams. Several tests are used to screen for and diagnose glaucoma:
Tonometry: Measures the pressure inside your eye. Elevated pressure is a key risk factor, though glaucoma can occur with normal pressure.
Ophthalmoscopy: Examines the optic nerve for signs of damage through a dilated pupil.
Visual Field Testing: Maps your peripheral vision to detect any blind spots that may indicate glaucoma damage.
OCT (Optical Coherence Tomography): Creates detailed images of the optic nerve and retinal nerve fiber layer, allowing detection of damage even before vision loss occurs.
Gonioscopy: Examines the drainage angle of the eye to determine the type of glaucoma.
4. Treatment Options for Glaucoma
The goal of glaucoma treatment is to lower eye pressure to a level that prevents further optic nerve damage. Treatment cannot restore vision that has already been lost, but it can protect remaining vision. Options include:
Eye Drops
Medicated eye drops are usually the first line of treatment. Several types are available, including prostaglandins, beta-blockers, alpha agonists, and carbonic anhydrase inhibitors. Each works differently to either reduce fluid production or improve drainage.
Using drops consistently as prescribed is essential for effectiveness.
Laser Treatment
Laser procedures can help improve fluid drainage from the eye. Selective Laser Trabeculoplasty (SLT) is commonly used for open-angle glaucoma and can be performed in the office. Laser peripheral iridotomy is used for angle-closure glaucoma to create an opening in the iris for better fluid flow.
Surgery
When drops and laser aren’t sufficient, surgical options include trabeculectomy (creating a new drainage channel), drainage implants, and minimally invasive glaucoma surgery (MIGS). Your ophthalmologist will recommend the best approach based on your specific situation.
5. Living with Glaucoma: What to Expect
Glaucoma is a chronic condition that requires lifelong management. Here’s what to expect:
Regular monitoring: You’ll need regular eye exams to check your eye pressure and monitor for any progression. This might be every 3-6 months initially, then annually once stable.
Consistent treatment: If prescribed eye drops, using them exactly as directed is critical. Skipping doses can lead to pressure spikes and damage.
Treatment adjustments: Your treatment plan may need to be adjusted over time as your condition changes or if current treatments aren’t achieving target pressure.
Communication: Let your eye doctor know about any side effects from medications or difficulty following your treatment plan. There are often alternatives available.
6. Glaucoma Care at Overlake EyeCare
At Overlake EyeCare, we take a conservative, evidence-based approach to glaucoma management. Our goal is to protect your vision while minimizing the burden of treatment. We use advanced diagnostic technology to detect glaucoma early and monitor it closely over time.
Our team includes ophthalmologists experienced in glaucoma diagnosis and treatment. If you need advanced surgical intervention, we can coordinate with glaucoma specialists to ensure you receive the right care.
Our Glaucoma Services Include:
- Comprehensive glaucoma screening
- Tonometry (eye pressure measurement)
- OCT imaging of the optic nerve
- Visual field testing
- Medical management with eye drops
- Ongoing monitoring and treatment adjustment
- Coordination with glaucoma specialists when needed
We serve patients at our Bellevue and Kirkland locations, providing convenient access to glaucoma care for residents throughout the Eastside, including Redmond, Bothell, and Woodinville.
Frequently Asked Questions
What is glaucoma and how does it affect vision?
Glaucoma is a group of eye conditions that damage the optic nerve, usually due to elevated eye pressure. It typically affects peripheral vision first, gradually narrowing your field of view. Without treatment, it can lead to irreversible vision loss and blindness.
Which eye clinics on the Eastside are good for glaucoma screening?
Overlake EyeCare offers comprehensive glaucoma screening at our Bellevue and Kirkland locations. We use advanced diagnostic technology including OCT imaging and visual field testing to detect glaucoma early and monitor it over time.
Can glaucoma be cured?
There is currently no cure for glaucoma, and vision lost to the disease cannot be restored. However, with early detection and proper treatment, most people with glaucoma can preserve their remaining vision and prevent further loss. This is why regular screening is so important.
How often should I be screened for glaucoma?
Adults over 40 should have comprehensive eye exams every 2-4 years. After age 60, annual exams are recommended. If you have risk factors like family history, elevated eye pressure, or are of African, Asian, or Hispanic descent, more frequent screening may be advised.
Are glaucoma eye drops effective?
Yes, medicated eye drops are usually the first and often most effective treatment for glaucoma. They work by lowering eye pressure, which helps protect the optic nerve. The key is using them consistently as prescribed. If drops alone aren’t sufficient, laser or surgical options are available.
Does insurance cover glaucoma treatment?
Yes, glaucoma screening and treatment are typically covered by Medicare and most medical insurance plans as medically necessary care. This includes diagnostic testing, office visits, and medications. Our team can help you understand your specific coverage.
Conclusion: Don’t Let Glaucoma Steal Your Sight
Glaucoma may be silent, but it doesn’t have to be devastating. With regular screening, early detection, and consistent treatment, most people with glaucoma can maintain good vision throughout their lives. The key is not waiting until you notice symptoms, because by then significant damage may have already occurred.
At Overlake EyeCare, we’ve been serving the Bellevue and Kirkland communities for over 40 years, and we’re committed to helping our patients protect their vision. If you’re due for an eye exam or have concerns about glaucoma, we’re here to help.
