Our bodies are like machines, and as we age, various organs begin to decline. One common issue for older individuals is blurry vision, which may not just be a result of eye strain but could also be a sign of certain eye conditions. So, what eye problems should older people be aware of when experiencing blurry vision?
1. Presbyopia
Presbyopia is a common age-related eye condition. As we get older, the lens in our eyes gradually hardens, and the ciliary muscle responsible for focusing weakens. This makes it difficult for the eyes to adjust and results in blurry vision when looking at nearby objects, also known as presbyopia. Some older individuals may unconsciously tilt their heads back or extend their arms to read newspapers or books, as they need to hold them further away to see clearly. They may also need better lighting to see more clearly and may experience eye discomfort or fatigue when looking at nearby objects for extended periods of time.
Wearing suitable reading glasses after an eye examination can help improve vision.
2. Cataracts
Cataracts are a leading cause of blindness. In the early stages, the lens in most older individuals' eyes becomes cloudy only in certain areas while the central part remains transparent, which does not initially affect vision. However, as the condition progresses, the lens becomes increasingly cloudy due to fibrous swelling and the accumulation of fluid between the fibers, resulting in worsening vision and potentially leading to blindness.
Currently, surgery is the preferred treatment for cataracts, where the lens is replaced. After the surgery, most individuals experience improved vision. Generally, the surgery can be considered if the cataract affects daily life, and there is no need to wait until the cataract worsens.
3. Glaucoma
Glaucoma refers to abnormally high pressure within the eyeball, exceeding the maximum limit that the optic nerve can tolerate. This leads to optic nerve damage and visual field defects, ultimately resulting in decreased vision or even blindness. It is one of the most common causes of blindness in older individuals. The increased eye pressure in glaucoma can compress the tissues within the eye, causing eye pain. Patients may also experience pain in the eye socket and nasal root, and severe cases may even cause intense headaches, nausea, and vomiting. If the individual already has presbyopia or myopia, these conditions may worsen suddenly in the presence of glaucoma.
Once diagnosed with glaucoma, it can be temporarily controlled through medication or surgery to maintain safe eye pressure. However, glaucoma cannot be completely cured, and lifelong follow-up care is necessary.
It is worth noting that not only these eye problems can cause blurry vision in older individuals. Sometimes, systemic diseases can also affect vision. Therefore, older people should always pay attention to their overall health, go for regular check-ups, and address any issues promptly to ensure that their lives are not affected by their physical health.
