What Should Seniors Know About Glaucoma?
Glaucoma is a leading cause of blindness that becomes increasingly common with age. This group of eye conditions damages the optic nerve, gradually stealing vision without early warning symptoms. Understanding glaucoma helps seniors protect their sight through early detection and treatment.
Understanding Glaucoma
Glaucoma damages the optic nerve, which transmits visual information from the eye to the brain. In most cases, this damage results from elevated pressure inside the eye. Fluid that normally flows through the eye drains too slowly, building up pressure that damages nerve tissue.
The most common type, open-angle glaucoma, develops gradually over years. Angle-closure glaucoma can occur suddenly as a medical emergency. Normal-tension glaucoma causes optic nerve damage despite normal eye pressure. All types cause irreversible vision loss without treatment.
Risk Factors
Age is the primary risk factor, with glaucoma becoming increasingly common after 60. Family history significantly increases risk because glaucoma has genetic components. African Americans face higher risk and tend to develop glaucoma earlier than other groups.
Other risk factors include high eye pressure, thin corneas, previous eye injuries, and certain medical conditions including diabetes and high blood pressure. Long-term corticosteroid use increases risk. Those with multiple risk factors need particularly vigilant monitoring.
Why Early Detection Matters
Glaucoma is called the silent thief of sight because it causes no symptoms until significant, irreversible damage occurs. Vision loss begins with peripheral vision, which people often do not notice. By the time vision changes become apparent, substantial optic nerve damage has already occurred.
Vision lost to glaucoma cannot be restored. However, treatment can stop or slow further damage. This makes early detection through comprehensive eye exams essential. Detecting glaucoma before symptoms appear allows treatment to preserve remaining vision.
Symptoms to Watch For
Open-angle glaucoma typically has no early symptoms. Advanced disease may cause tunnel vision or blind spots in peripheral vision. Any vision changes warrant prompt evaluation.
Acute angle-closure glaucoma is a medical emergency with sudden symptoms including severe eye pain, headache, nausea and vomiting, blurred vision, halos around lights, and eye redness. Seek immediate emergency care for these symptoms to prevent permanent vision loss.
Diagnosis
Comprehensive eye exams detect glaucoma before vision loss occurs. Eye pressure measurement, optic nerve examination, visual field testing, and corneal thickness measurement all contribute to diagnosis. Regular exams are essential because early glaucoma cannot be detected otherwise.
Adults over 60 should have comprehensive eye exams every one to two years. Those with risk factors may need more frequent evaluation. Eye exams are particularly important for African Americans over 40 given elevated risk.
Treatment
Treatment aims to lower eye pressure, slowing or preventing further optic nerve damage. Eye drops are typically the first treatment, applied daily to reduce pressure. Several classes of drops work through different mechanisms. Consistent daily use is essential for effectiveness.
Laser treatments and surgery can improve fluid drainage when drops are insufficient. Treatment cannot restore lost vision but prevents additional damage. Regular monitoring ensures treatment maintains adequate pressure control.
Getting Eye Care
All Seniors Foundation encourages regular comprehensive eye exams to detect glaucoma and other vision-threatening conditions. Protecting your sight requires proactive care before symptoms develop. Contact us if you need assistance accessing eye care services.
