As the world population continues to age, cataracts have become an increasingly common cause of vision problems. In fact, over 60% of blindness cases can be attributed to this condition. 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.
Until recently, cataract surgery only provided improved distance vision and required patients to wear glasses for close-up activities. However, advancements in technology have introduced refractive phaco, allowing patients to see clearly at all distances after surgery. This has greatly improved the quality of life for many people who suffer from cataracts.
Director of Hanoi High-Tech Eye Hospital, Nguyen Van Sanh, emphasized the importance of addressing this growing health concern. He pointed out that there are different types of IOLs available for cataract patients, 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 offers significant advantages over traditional monofocal lenses. For example, asymmetric rotating refractive lenses provide clear vision at all distances while reducing the need for glasses. This makes them a popular choice among many patients who want to improve their quality of life without having to rely on glasses constantly.
Cataract patients now have access to high-quality lenses that can greatly improve their ability to perform daily activities without relying on glasses. The use of asymmetric refractive multifocal IOLs is becoming increasingly common and has been shown to benefit over 60% of patients at Hanoi High-Tech Eye Hospital.
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