Does your vision feel like you’re looking through a foggy or dusty window? Do colours seem faded, or do you struggle to see clearly at night? These are classic signs of cataracts — a clouding of the eye’s natural lens that is one of the leading causes of blindness in Pakistan.

Cataracts develop gradually, often with age, and worsen over time. The good news is that they are almost entirely treatable: a short, safe surgery replaces the clouded lens and can restore clear vision within days.

If you often finish the day with sore, tired eyes or a dull headache behind your forehead, your eyes may be straining to focus. This usually points to an uncorrected refractive error — short-sightedness, long-sightedness, or astigmatism — that needs glasses or an updated prescription.

Squinting to read, holding your phone closer, or trouble seeing the board or a signboard are common clues. Left uncorrected, the constant strain worsens fatigue and can affect work, study, and safety while driving.

Eyes that stay red, itchy, watery, or gritty are often reacting to infection or allergy — commonly conjunctivitis (“pink eye”) or exposure to dust, pollen, and pollution, which are widespread in our cities.

While mild irritation often settles on its own, redness that lasts more than a few days, sticky discharge, or pain and light sensitivity should never be ignored. These can signal a spreading infection that needs proper treatment.

Seeing halos or starbursts around headlights and streetlamps, along with worsening glare at night, can be an early sign of glaucoma or advancing cataracts. Glaucoma in particular is dangerous because it damages the optic nerve silently, with little warning until vision is already lost.

Because early glaucoma has almost no symptoms, it’s often called the “silent thief of sight.” Vision lost to glaucoma cannot be recovered — but early detection can stop it from getting worse.

Dark spots, sudden floaters, or a slow fading of central vision are serious warning signs — often linked to diabetic retinopathy, a complication of diabetes that damages the blood vessels at the back of the eye. With diabetes so common in Pakistan, this is one of the fastest-growing causes of preventable blindness.

The condition can progress with no early symptoms, which is why regular retinal screening matters so much for anyone with diabetes. Caught early, treatment can preserve sight; caught late, the damage may be permanent.