
What is Intraocular Lens (IOL)?
Intraocular lens (IOL) is an artificial lens that replaces the natural lens of the eye in cataract surgery and refractive surgery. It is usually made of materials such as biocompatible acrylic, silicone or PMMA (Polymethylmethacrylate).
IOLs are divided into types such as monofocal, multifocal, trifocal and toric. While monofocal lenses have a single focal point, multifocal and trifocal lenses provide clear vision at different distances. Toric lenses are specially designed to correct astigmatism.
Thanks to advanced hydrophilic and hydrophobic coatings, IOLs are long-lasting and biologically stable within the eye.
What is it used for?
IOLs are primarily used in cataract surgery. Cataract causes a decrease in the quality of vision by opacification of the natural lens and must be surgically removed. Instead, an artificial lens is implanted into the eye to restore the patient’s vision.
IOLs can also be used in refractive surgery procedures to correct refractive errors such as presbyopia and myopia/hyperopia. Toric IOLs reduce the need for glasses by correcting astigmatism.
Especially premium IOL models provide clear vision at different distances, making it possible for the person to continue his daily life without glasses.
Conveniences Provided to the Patient and the Application
IOLs offer patients a clearer and more permanent vision. During cataract surgery, the old lens is removed by ultrasonic phacoemulsification and the new lens with a foldable structure is inserted through a small incision.
This method, which does not require stitches, accelerates the healing process and minimises the risk of infection. The operation usually takes 10-15 minutes and the patient is discharged on the same day. Thanks to multifocal and trifocal lenses, patients can see both near and far clearly, so they do not need to wear glasses.
Thanks to their long-lasting and biologically compatible materials, IOLs offer a permanent solution within the eye.