Why Glaucoma Is So Dangerous
Glaucoma damages the optic nerve — the cable that sends visual information from your eye to your brain. In most cases, that damage happens slowly, silently, and without pain. By the time most patients notice something is wrong, significant and irreversible vision has already been lost.
This is why routine eye exams are the single most important tool for catching glaucoma early.
Sign 1: Gradual Loss of Peripheral Vision
The earliest vision loss in glaucoma typically happens at the edges of your visual field. You might notice you're missing things in your side vision — bumping into objects, not seeing cars approaching from the side. Because this happens slowly, your brain compensates and many patients don't notice until it's advanced.
Sign 2: Tunnel Vision
In later stages, glaucoma can narrow your visual field to a small central "tunnel." If you're experiencing anything like this, seek evaluation immediately.
Sign 3: Halos Around Lights
Seeing rainbow-colored halos around light sources — especially at night — can be a sign of elevated eye pressure, particularly in acute angle-closure glaucoma.
Sign 4: Eye Pain or Redness with Nausea
Acute angle-closure glaucoma can cause a sudden, dramatic rise in eye pressure accompanied by severe eye pain, headache, blurred vision, nausea, and vomiting. This is an ophthalmic emergency.
Sign 5: You Have Risk Factors — Even With No Symptoms
If you're over 60, have a family history of glaucoma, have elevated eye pressure, or are of African, Hispanic, or Asian descent, you are at significantly higher risk. Annual eye exams are essential even if you feel completely fine.
The Bottom Line
Don't wait for symptoms. Schedule a comprehensive eye exam — especially if you have any risk factors. We measure intraocular pressure, examine your optic nerve, and perform visual field testing at every comprehensive exam.