Can Glaucoma Develop Without Noticeable Symptoms?

It's easy to assume that an eye condition serious enough to threaten your vision would give you some kind of warning. With glaucoma, that often isn't the case. The most common forms of glaucoma can develop gradually, with little or no noticeable change in eyesight during the early stages, even as damage to the optic nerve is occurring. This is one reason regular comprehensive eye exams remain important even when your vision seems perfectly fine. 

At SPEX, Dr. Scott Campbell evaluates patients for glaucoma and other eye conditions that may not cause obvious symptoms at first. Because vision loss caused by glaucoma generally cannot be restored, early glaucoma detection in Seattle, WA can provide an opportunity to manage it before more significant damage occurs. Here, we'll look at why glaucoma can be so difficult to notice on your own and how eye exams can reveal changes you may not be able to see or feel. 

 

What causes glaucoma? 

Glaucoma develops when the optic nerve becomes damaged, often in connection with pressure inside the eye. This pressure is influenced by the balance between the fluid the eye produces and how efficiently that fluid drains. If drainage is impaired, pressure can rise and place stress on the optic nerve over time. However, glaucoma is not always associated with unusually high eye pressure, which is one reason pressure checks alone cannot rule it out. 

Age, family history, certain medical conditions, previous eye injuries, and other factors can also affect a person's glaucoma risk factors. Because several forms of the disease exist, determining the likely cause and type of glaucoma requires a comprehensive eye evaluation. 

 

What does glaucoma do to your vision? 

Glaucoma damages the optic nerve, which carries visual information from the eye to the brain. In many cases, this damage develops gradually and initially affects peripheral, or side, vision. Because both eyes work together and the brain can compensate for subtle changes, early vision loss may be difficult to recognize in everyday life. 

As glaucoma progresses, the field of vision can become increasingly restricted and, without treatment, significant permanent vision loss may occur. This gradual progression is what makes early detection so important, since protecting the remaining optic nerve function is the primary goal once glaucoma is identified. 

 

Are there any symptoms of glaucoma? 

Symptoms depend on the type and stage of glaucoma. Open-angle glaucoma, the most common form, typically causes few noticeable symptoms until meaningful vision loss has already occurred. Other forms can develop more suddenly and may produce obvious warning signs. Symptoms that warrant prompt eye care can include:  

• Sudden severe eye pain 
• Blurred or hazy vision 
• Halos around lights 
• Eye redness 
• Headache accompanied by eye symptoms 
• Nausea or vomiting with severe eye pain 
• Sudden or rapidly worsening vision changes 

These symptoms can occur with acute angle-closure glaucoma, which requires urgent medical attention. More gradual glaucoma may not cause anything you can readily feel or see, making routine screening especially valuable. 

 

How do you know if you have glaucoma without symptoms? 

A comprehensive eye exam can uncover signs of glaucoma long before you would necessarily notice a change in your vision. Dr. Campbell may assess several aspects of eye health rather than relying on a single test, including eye pressure, the appearance of the optic nerve, peripheral vision, and the drainage angle of the eye. Imaging may also be used. 

Comparing results from one visit to the next can be especially helpful because glaucoma often develops gradually. If you have risk factors such as a family history of glaucoma or elevated eye pressure, you may need more frequent monitoring even when your eyesight seems normal. 

 

Can glaucoma be treated? 

Although treatment cannot restore vision that has already been lost to glaucoma, it can often slow or stop further damage by reducing stress on the optic nerve. Depending on the type and severity of glaucoma, treatment may include prescription eye drops, laser therapy, or surgery to improve fluid drainage or lower eye pressure. Some patients need only one approach, while others may require a combination of treatments and ongoing monitoring. 

The earlier glaucoma is diagnosed, the more opportunity there is to preserve existing vision, which is why keeping up with recommended eye exams is an important part of long-term management. 

 

Protect your sight with glaucoma screening and care in Seattle 

Glaucoma can be easy to overlook precisely because it may not make itself known until vision has already been affected. Routine eye exams give you the opportunity to catch subtle changes earlier and take action when treatment can do the most to protect your remaining sight. Contact our caring team at SPEX to schedule an eye exam with Dr. Scott Campbell and learn more about treatment and screening for glaucoma in Seattle, WA.