Cataracts have long been a common cause of vision problems, affecting a large percentage of the population and leading to blindness if left untreated. However, advancements in technology have introduced refractive phaco, allowing patients to see clearly at all distances after surgery.
Cataracts occur when the protein structure of the lens in the eye changes, causing it to become opaque and obstruct light, resulting in decreased vision. The most effective treatment for cataracts is artificial lens replacement surgery, where an intraocular lens (IOL) is used to replace the cloudy natural lens. There are different types of IOLs available, including monofocal and multifocal lenses.
Monofocal lenses focus light at a single point, usually for distance vision, while multifocal lenses allow for clear vision at multiple distances, including near, intermediate, and far. The latest generation of multifocal IOLs, such as asymmetric rotating refractive lenses, offer significant advantages, providing clear vision at all distances and reducing the need for glasses.
Director of Hanoi High-Tech Eye Hospital, Nguyen Van Sanh, emphasized the increasing prevalence of cataracts among younger people, with over 60% of blindness cases attributed to this condition. Cataracts can be caused by various factors, including harmful substances from within the body or the external environment. With advancements in technology and high-quality lenses available nowadays patients can improve their quality of life and perform daily activities without reliance on glasses.
Over 60% of patients at Hanoi High-Tech Eye Hospital benefit from refractive multifocal IOLs that enable them to see clearly at all distances and reduce the need for glasses. These lenses are becoming increasingly common because they provide clear vision at all distances without hindrances like combined eye fundus disease.
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