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It has been suggested that lenses combining more than one optical design be termed "hybrid IOLs". [24] The principle on which they work is to form a single, axially elongated focal point, unlike monofocal lenses which have a single focal point, and multifocal lenses which have two or more stacked discrete focal points.
People who have a multifocal intraocular lens after their cataract is removed may be less likely to need additional glasses compared with people who have standard monofocal lenses. [2] People receiving multifocal lenses may experience more visual problems, such as glare or haloes (rings around lights), than with monofocal lenses. [2]
Furthermore, the reduction was more pronounced in patients wearing hard contact lenses than in patients wearing soft contact lenses. Contact lens-induced hypoxia triggers the cornea to undergo anaerobic respiration, resulting in a buildup of lactic acid that osmotically draws water into corneal cells, causing edema. [ 6 ]
Contact lens wearers can also wear sunglasses, goggles, or other eye wear of their choice without having to fit them with prescription lenses or worry about compatibility with glasses. Additionally, there are conditions such as keratoconus and aniseikonia that are typically corrected better with contact lenses than with glasses. [8]
These lenses are designed to meet the growing demand for intermediate-optimized IOLs, which are projected to see a 15% CAGR. 3 WALTHAM, Mass., Sept. 03, 2024 (GLOBE NEWSWIRE) -- BVI today unveiled its latest innovations: SERENITY and SERENITY Toric premium monofocal IOLs.
In the US market, soft contact lenses are approved by the US Food and Drug Administration. [2] The American Optometric Association published a contact lens comparison chart called Advantages and Disadvantages of Various Types of Contact Lenses on the differences between them. [3] These include: soft contact lenses; rigid gas-permeable (RGP ...