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Multifocal intraocular lens
Types of intraocular lenses
monofocal intraocular lens
Monofocal intraocular lenses, which are commonly used today, have a single focal point, so the image quality is excellent. However, you will definitely need glasses as the camera will not be able to focus beyond the selected distance.
multifocal intraocular lens
Early multifocal intraocular lenses had two focal points (far and near), making it difficult to see around 1 meter, causing glare from street lamps and car lights, and the appearance of a halo of light (halo). ) symptoms such as However, for several years now, lenses with a wide focal range that look natural have been mainly used, and recently lenses with three focal points (far, medium, and near) have been mainly used, and there is data that shows that they feel less strange than conventional lenses. It has been reported at academic conferences both domestically and internationally. However, it is important to understand that because the light that enters the eyes is dispersed into the far, middle, and near areas, your vision will not be exactly the same as when you were young.
normal appearance
How to see halo glare
Product introduction
Bifocal (Technis Multifocal)
The position of the focal point varies depending on the type of lens, and there are two focal points. This multifocal intraocular lens is suitable for people who are relatively focused on near vision.
Extended focus type (symphony)
Data has been reported at domestic and international academic conferences that it causes less discomfort, provides a wider range of focus, and looks natural. Halos and glare are also suppressed to some extent, and the contrast is almost the same as a monofocal intraocular lens. The visibility at 30 to 40 cm is weaker than at distances up to 50 cm, and you should imagine that this is the early stage of presbyopia.
Trifocal (pan optics)
This is a multifocal intraocular lens with three focal points. Each focal point is set at an exquisite distance necessary for daily life, and the focal points are near (40 cm), intermediate (60 cm), and far.
Differences in vision depending on each lens
