Intraocular lenses are medical products that are implanted in the eye, when the natural lenses are clouded and a cataract surgery is needed. They are also used for correction of high dioptres (myopia, hypermetropia, astigmatism) – an intervention called refractive change of the lenses.
Intraocular lenses have been used since the 1980s. Before that, after a cataract surgery the patients had to wear high-diopter eyeglasses or special contact lenses to have a better eyesight, as there were no implants to replace the natural lenses of the eye.
Today, cataract surgery is one of the most common medical interventions in the world and is definitely one of the safest ones. The only problem with it, until recently, was that 95% of the intraocular lenses were monofocal. They provided good post-surgery eyesight only for long distances, and eyeglasses were needed for both close distance (book reading, smartphone using, eating) and middle distance (computer work, shopping, seeing the car's dashboard). The first multifocal lenses were implanted in the end of the 1980s. Ever since, the eye implants have been enjoying a rapid development. Throughout the years, a lot of multifocal lenses were introduced, but it seemed that all of them had shortcomings. Some produced halos and glimmers around sources of artificial light, which is not pleasant during night driving. With others, the long distance eyesight was wonderful, but glasses were needed for middle or close distances.
In the beginning of the last year, an innovative Swiss company introduced a new technology for multifocal lenses. The optics (Instant Focus) of the implant has been jointly developed by the Swiss and French ophthalmology and is a true revolution. With it, the eyesight is perfect from 30 cm from the eyes to infinity, and at the same time there are no the halos and glimpses in night time that result in most of the other multifocal lenses. This new technology allows us after the surgery to see practically everything, while sparing us the side visual effects.
A proof for the uniqueness of these multifocal lenses is also our experience. In Zora Specialised Eye Hospital – Sofia, we have been implanting the lenses since June 2016. All of our patients feel incredibly comfortable, they don't need eyeglasses for a single distance, they watch TV, drive, read and work on a computer, and they don't report glimpses and halos around light sources.
Zora Specialised Eye Hospital
Sofia, 191 Maria Louisa Blvd, floor 2
phones: 02 931 2281; 0879 998 414