For most people with mild to moderate myopia, glasses or contact lenses correct the vision adequately and there are no serious consequences. However, people with high myopia (above -6.00 D) carry a significantly higher risk of serious eye conditions — some of which can cause permanent vision loss if not detected and treated early.

How Myopia Worsens Over a Lifetime

Myopia progresses most rapidly during the school years (ages 6-18) as the eye is still growing. After the late teens or early twenties, it usually stabilises — meaning the prescription stops changing significantly. However, the long-term structural consequences of a longer-than-normal eyeball remain throughout life.

The Complications of High Myopia

1. Myopic Macular Degeneration (MMD)

The macula is the central part of the retina responsible for your sharp, central vision — reading, recognising faces, driving. In high myopia, the elongated eyeball stretches the retina, making it abnormally thin. Over time, this can lead to:

• Thinning and degeneration of the macular tissue
• Growth of abnormal blood vessels beneath the retina (myopic CNV) that can bleed
• Permanent loss of central vision if not treated promptly

2. Glaucoma

People with high myopia have a 2-3 times higher risk of developing glaucoma, a condition where the optic nerve (which carries vision signals from the eye to the brain) is progressively damaged — usually due to raised eye pressure.

Glaucoma can also be harder to detect in myopes because the optic nerve disc looks different, and normal eye pressure ranges may still be damaging. Regular pressure checks and OCT scans of the optic nerve are important.

3. Retinal Detachment

The stretched, thinned retina in a myopic eye is more prone to developing holes, tears, and detachments. A retinal detachment — where the retina peels away from the back of the eye — is a medical emergency that requires immediate surgery to prevent permanent blindness.

4. Early Cataract

People with high myopia tend to develop cataracts (clouding of the natural lens) earlier in life — often in their 40s or 50s rather than the typical 60s or 70s. Cataract surgery in highly myopic eyes requires careful planning due to the longer axial length.

Regular Monitoring — Your Best Protection

The key message is that high myopia requires regular, lifelong eye monitoring — not just spectacle prescriptions. At Suraj Eye Institute, our retinal specialists and glaucoma team provide comprehensive myopia monitoring that includes:

• Detailed retinal examination with dilated pupils
• OCT (Optical Coherence Tomography) scan of the macula and optic nerve
• Measurement of eye pressure (IOP)
• Axial length measurement (to track eye growth)
• Visual field testing if glaucoma is suspected