It only takes a few minutes of looking around our portal to realize that there are many different intraocular lens models on the market. Anyone suffering from cataract, presbyopia or any other refractive disorder who is thinking of getting an intraocular lens implant would like to know what kind of lens would allow him to see better after surgery.
Let’s start with the answer: it depends on the patient’s characteristics.
These characteristics range from patient’s refraction to the specific anatomy of his eyes, his age at the moment of undertaking surgery, previous pathologies and lifestyle of the patient.
Hence, there are not only medical factors involved, but also specific aspects of the lifestyle (eg: level of dependence from glasses) that the patient wants to achieve after surgery. This will, ultimately, make a type of intraocular lens perfect for a particular patient.
The ophthalmologist, following a thorough medical evaluation of the patient, will present a few options of the kinds of surgery the patient can undergo. He will then determine the final analysis after having a conversation with the patient about post surgery expectations, prices etc. Then together they will decide the type of surgery and, if this surgery is intraocular, the decision of type of intraocular lens will then be decided.
Choosing the best option of intraocular lens
1 – Selecting surgery method and its type of intraocular lens.
If the ophthalmologist decides that the most adequate option for the patient is intraocular surgery, the patient will be given the next following surgery options, each one is associated to a different type of intraocular lens:
- Surgery with extraction of crystalline lens (whether it turned opaque or not) with intraocular lens implant: intraocular pseudophakic lenses (replacement of the crystalline lens).
- Intraocular surgery without extraction of crystalline lens with intraocular implantation of phakic implant either in the anterior or posterior chamber (on the iris or between the iris and crystalline lens).
2- Selecting the Lens design-type.
In each classification group above, we find intraocular lenses with all kinds of different designs and functionalities. To simplify, these lenses can be grouped depending on:
- Number and design of the focus areas (monofocal and multifocal).
- Correction of astigmatism (Toric or non-toric).
- The asphericity (spherical or aspheric).
- Protective filters for the retina (UV and blue light).
- Anti-opacification measures for the posterior crystalline capsule (Squared-edged).
3- Selecting the lens model:
This is the hardest part, and only the ophthalmologist can make the final decission. The market of intraocular lenses is highly competitive and Research and Development (R&D) plays a fundamental role in it. Many companies try to develop intraocular lenses with similar performance, thus giving rise to a great number of alternatives when selecting the lens.
Your surgeon is responsible for choosing the best intraocular lens for you. He knows what type of specific lens will satisfy your needs, according to your characteristics, experience and your visual expectations.
Other patient’s testimony as reference
Most of the patients do not know the exact model of intraocular lens that got implanted. As we mentioned earlier, this doesn’t have to be particularly relevant as there are many comparable alternatives. However frequently, patients do have information about the type of lens implanted, so do not hesitate to ask former patients about their post operative satisfaction and get information about their intraocular lens.
Learn about the type of lenses currently available on the market, keep track of their differences and read other patient’s recommendations. This way, you would be able to better understand all the different options that are available as well as the explanations of your ophthalmologist, who will finally decide, whenever possible, the ideal type of lens for you.