With the proliferation of electronic devices and cell phones, the eye problems associated with them have increased. With age, the natural lens of the eye loses its ability to clarify the image, which is known as white water on the eyes, but it has become accompanied by other visual defects such as myopia, farsightedness and medial vision.
In the past, the only options available to patients were either monofocal or bifocal lenses, but eyeglasses are still often required for certain activities. With the development of modern technologies, one of the most recent methods of treating cataract on the eyes is Trifocal IOL.
What are multifocal lenses for treating white water on eyes?
Trifocal lenses are the most advanced lenses for treating cataracts, as they are implanted in the eye during a cataract or lens replacement procedure.
It is a bifocal lens (Bifocal), but it was designed with the addition of a different feature in it that makes the main goal of it to provide a clear vision of the near, medium and far distances for the patient with cataract on the eyes.
What is the difference between multifocal lenses and other lenses for treating cataracts?
1- Monofocal lenses.
The most common type of lens used to treat cataracts. Unlike your natural lens, this lens features a single fixed distance focus. It means treating patients with farsightedness only, but after the operation you will need glasses for reading or watching closely.
2- Bifocal lenses.
Like bifocal eyeglasses, this one has areas that help you see things at different distances (far and near only). It may take several months for your mind to adjust for your vision to appear normal.
3- Multifocal Lenses.
Trifocal lenses work by gathering light entering the eye from near, medium, and far distances, focusing it on a single focal point on the retina. As a result, it can see objects at various distances, providing close, middle and far vision through a single lens.
This type of lens is the latest in the world of intraocular lens implantation, and it substitutes for the use of eyeglasses.
Toric IOLs are the latest in multifocal lenses
Toric lenses are eye lenses that correct astigmatism as well as nearsightedness or farsightedness.
Immediately before cataract surgery, the surgeon places temporary markers on the patient’s cornea that determine the location of the most curved meridian at the front of the eye, and then implantation of the (Toric IOL) lens during cataract surgery is performed on the eye, the surgeon rotates the lens so that the existing marks are aligned. On the lens with marks on the cornea to ensure proper astigmatism correction.
What are the advantages of multifocal lenses for treating white water on eyes?
Unlike monofocal and bifocal lenses, the design of multifocal lenses includes a third focal point (middle distance) as well as near and far distances; This is what a person requires to do daily activities such as:
- Cooking, cleaning and ironing.
- Work on the computer.
- Watching TV.
- Work in the garden.
- Doing sports.
What are the disadvantages of multifocal lens implantation for cataract treatment?
Multifocal implantation, like many modern technologies, suffers from some disadvantages, which is that patients suffer from the appearance of some bright rings around lights at night. While the patient does not see it during the day. Therefore, if you are a practitioner of night professions, Prof. Ahmed Al-Mu’tasim advises that you consult your doctor about the compatibility of the process with your profession and your daily routine.
What to expect after implantation of multifocal lenses?
After lens implant surgery, patients stay in the hospital under observation for one or a few nights. And with the use of modern surgical methods; The patient can leave the hospital on the same day. The patient is instructed on how to use eye drops that contain antibiotics to prevent infection, which he should use for 3 weeks after the operation. The patient is provided with eye drops to prevent eye infection.
Who are the candidates for multifocal lenses?
- People over the age of 55 who rely heavily on glasses.
- Astigmatism patients.
- Patients with vision disorders such as myopia or hyperopia.
- Those with age-related eye diseases such as cataracts.
However, not all candidates are suitable for all types of lenses, for example; Sometimes, the best visible results are achieved after a cataract operation with a different type of lens.
For example, you may have astigmatism in one eye than in the other. In this case, your eye surgeon recommends using an IOL lens in that eye only.
An eye surgeon can fully evaluate your specific needs during a pre-operative exam, and help you choose the best type of lens for a successful result and better vision.