Glaucoma is also called the "silent thief of sight" since it progresses slowly without apparent symptoms in its initial stages. Glaucoma develops quietly, unlike other vision issues that appear with instant discomfort or blurred vision, and tends to damage peripheral vision before central vision. Regular eye exams are important for early diagnosis and treatment.Think of your eyes as cameras, taking pictures that your brain interprets through the optic nerve. Glaucoma destroys this nerve, preventing your brain from getting clear pictures. The catch is that it happens slowly and painlessly, so it's easy to ignore until permanent vision loss has taken place.Dr. Ajay Sharma, Ophthalmologist, says, "Most people think that good central vision means healthy eyes, but glaucoma attacks the optic nerve, producing slow, irreversible damage. Early detection is the key to identifying this condition before it advances."Early Symptoms of Glaucoma Are Often UndetectablePerhaps the most perilous part of glaucoma is that there are often no warning signs at all. Most individuals believe that vision loss will be preceded by obvious symptoms such as pain or sudden blurriness, but this is not true for glaucoma. The disease tends to attack peripheral vision initially, so it is hard to notice until extensive damage has been done. With time, people might start to feel they cannot see things on the side, but by then, the damage could already be extensive.From Dr. Sharma, "Glaucoma may develop even when vision seems perfectly normal. Sometimes, for example, with normal-tension glaucoma, optic nerve damage happens even with normal intraocular pressure."Who's at Risk? Kow Risk FactorsWhile anyone can get glaucoma, some people are at greater risk. Knowing these risk factors can help you take action to safeguard your eyesight.Age: The risk of glaucoma grows much higher after age 60. African Americans are at greater risk, however, after age 40.Family History: If a close relative has experienced glaucoma, you are more likely to develop it.Ethnicity: African Americans, Hispanics, and Asians are more likely to develop certain forms of glaucoma.Eye Health Conditions: Nearsightedness, eye trauma, or chronic inflammation can lead to the disease.Medical Conditions: Glaucoma risk is heightened in people with diabetes, high blood pressure, and heart disease.Medications: Chronic use of corticosteroids will often elevate intraocular pressure, elevating the danger of optic nerve damage.How Can You Catch Glaucoma Early?As glaucoma has limited detectable signs and symptoms during the early phases, the optimal approach to capture it before severe harm is by extensive eye examinations.Opticians conduct a dilated eye test, during which special drops widen the pupils, enabling a better look at the optic nerve. A tonometry test takes an intraocular reading, and a visual field test checks peripheral vision.Dr. Sharma stresses, "Those with increased risk factors, such as high myopes or hypermetropes, diabetes, eye injuries, or long-term steroid treatment, should have regular eye tests to check intraocular pressure and optic nerve function."How to Protect Your Eyesight?Though glaucoma cannot be cured, early detection can delay its advancement and help save vision. Here are real-life measures to safeguard your eyesight:1. Get Regular Eye ExamsA thorough eye examination every one to two years is necessary, particularly for people over 40 or with risk factors. These examinations can identify glaucoma before symptoms are evident.2. Control Underlying Health ConditionsManaging conditions such as diabetes and high blood pressure can lower the risk of optic nerve damage. Healthy living protects your overall eye health.3. Take Medications as DirectedIf diagnosed with glaucoma, your doctor may prescribe eye drops or oral medications to reduce intraocular pressure. Consistently using prescribed treatments can slow disease progression.4. Protect Your Eyes from InjuryEye injuries can increase the risk of glaucoma. Wear protective eyewear during activities that pose a risk, such as sports or working with hazardous materials.5. Follow a Healthy DietEating food rich in nutrients, especially antioxidants, omega-3 fatty acids, and vitamins A, C, and E, is good for your eyes. Make leafy greens, fish, nuts, and oranges a part of your diet.6. Be Physically ActiveRegular exercise may reduce eye pressure. Walk, practice yoga, or swim to stay healthy.7. Reduce Screen Time and Eye StrainProlonged screen time can cause digital eye strain, leading to discomfort and dry eyes. Follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds.Glaucoma is a quiet but dangerous eye disease that can cause permanent vision loss if not treated. Because symptoms may not be noticeable until extensive damage has been done, regular eye exams are the best protection against this disease.As Dr. Sharma says, "The key to preventing glaucoma-related vision loss is early detection. Don't wait for symptoms to appear—schedule an eye exam and take charge of your eye health today."Dr. Ajay Sharma, Ophthalmologist, Founder and Chief Medical Director of Eye-Q Eye Hospitals in India