{"id":2334,"date":"2025-05-13T09:29:11","date_gmt":"2025-05-13T01:29:11","guid":{"rendered":"https:\/\/eyewisevision.com.sg\/?p=2334"},"modified":"2026-02-16T02:48:41","modified_gmt":"2026-02-15T18:48:41","slug":"cataracts-and-light-sensitivity-eye-glare-and-discomfort","status":"publish","type":"post","link":"https:\/\/eyewisevision.com.sg\/zh\/blog\/cataracts-and-light-sensitivity-eye-glare-and-discomfort\/","title":{"rendered":"\u767d\u5185\u969c\u548c\u754f\u5149\uff1a\u773c\u775b\u7729\u5149\u548c\u4e0d\u9002"},"content":{"rendered":"
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Cataracts, the progressive clouding of the eye’s natural lens, are a common part of the ageing process and a significant cause of visual impairment. Beyond the gradual blurring of vision, many individuals with cataracts experience heightened sensitivity to light, a symptom that can impact their daily lives.<\/p>\n\n

Often manifesting as glare and the appearance of halos around lights, this light sensitivity can make everyday tasks uncomfortable and even challenging. This article explores why cataracts cause this increased sensitivity and provides practical tips and strategies for managing glare and visual discomfort.<\/p>\n\n

How Cataracts Cause Light Sensitivity<\/strong><\/h2>\n\n

To understand how cataracts lead to increased light sensitivity, it’s helpful to appreciate how a healthy eye processes light. In a normal eye, the clear lens focuses incoming light onto the retina, the light-sensitive tissue at the back of the eye. This focused light lets us see sharp, clear images with good contrast. However, when a cataract develops, the normally transparent lens becomes cloudy and opaque. This disrupts the smooth passage of light through the eye in several ways.<\/p>\n\n

Firstly, the cloudy lens scatters incoming light. Instead of a focused beam reaching the retina, the light rays become diffused and spread out as they pass through the cataract-affected lens. This creates glare, which can be particularly pronounced in bright conditions, such as direct sunlight or the glare from reflective surfaces. This can make it difficult to see clearly and comfortably, often feeling as though there is a constant haze or film over your vision.<\/p>\n\n

Secondly, cataracts can reduce the overall amount of light reaching the retina. The cloudiness acts as a filter, blocking some of the light and making vision dimmer, especially in low-light conditions. This can make the eye more sensitive to sudden increases in brightness, as the already compromised visual system struggles to adapt.<\/p>\n\n

Cataracts can also cause halos to appear around lights, particularly at night. This occurs as the distorted light passing through the irregular clouding of the lens is diffracted, creating rings or circles of light around light sources like streetlights or car headlights. These halos can be distracting and impair night vision, making activities like driving after dark challenging and potentially hazardous.<\/p>\n\n

Practical Tips for Managing Glare Outdoors<\/strong><\/h2>\n\n

Managing glare outdoors is often a primary concern for individuals with cataracts, especially in sunny Singapore. Here are some tips to help you manage glare when you’re outside:<\/p>\n\n