It’s natural for vision to change with age, and getting new glasses usually resolves the problem.But sometimes, patients report this, even though the actual problem isn’t related to their eyeglasses. By then, days or weeks have passed, and in the case of eyes, this delay can determine whether vision remains or is lost. Dr. Tushar Grover (Medical Director, Vision Eye Center) explains the signs that are often mistaken for normal changes, but are actually not.
There’s a big difference between gradually worsening vision over months and vision loss that occurs overnight. If one eye suddenly stops working as well as it did just a day ago, it doesn’t mean you need new glasses. This could be a sign of a blocked blood vessel in the retina or a problem with the optic nerve. If left untreated, it can cause permanent damage to the eyes. Gradual changes rarely require immediate treatment, but sudden changes require immediate treatment.
Floaters—small spots or thread-like objects floating before the eyes—are common, especially after the age of 40. These are usually not cause for concern. However, if you suddenly see many new floaters, flashes of light without warning, or feel as if a curtain is slowly covering your vision, this could be serious. These could be signs of a retinal tear or retinal detachment. If detected within a few hours, it is often treatable. But if it’s ignored for even a few days, the consequences can be very different and serious.
Undetected loss of side vision may be the most worrying on this list, as it often goes unnoticed. As peripheral vision diminishes, our brains adjust very well, so it often goes unnoticed until the loss is significant. This gradual and painless loss of side vision is a key symptom of glaucoma. This condition involves increased pressure within the eye, which gradually damages the optic nerve. It’s almost never painful and has no obvious signs. The only reliable way to detect it early is through accurate eye pressure monitoring. This is why people with a family history of glaucoma are advised to get themselves checked even without symptoms.