Glossary Term
Intraocular Lens
Definition
An intraocular lens (IOL) is a small, artificial lens implanted in the eye to replace the natural lens removed during cataract surgery or to correct refractive errors. IOLs are designed to restore clear vision and are available in various types to address specific visual needs.
Relevance to the MedTech Industry
IOLs provide a solution for vision restoration and enhancement, improving the quality of life for patients with cataracts or significant refractive errors. These lenses are a cornerstone of modern ophthalmology, combining advanced optics with biocompatible materials to deliver precise and lasting vision correction.
Additional Information & Related Terms
Types of Intraocular Lenses
Monofocal IOLs
Provide clear vision at a single distance (near, intermediate, or far), commonly used in standard cataract surgeries.
Multifocal IOLs
Correct vision at multiple distances, reducing the need for glasses or contact lenses after surgery.
Toric IOLs
Designed to correct astigmatism in addition to other refractive errors.
Accommodating IOLs
Mimic the eye’s natural ability to adjust focus by shifting position in response to muscle movements.
Extended Depth of Focus (EDOF) IOLs
Provide a broader range of vision than monofocal lenses, reducing dependence on corrective eyewear.
Examples of Applications
Cataract Surgery: Replacing the clouded natural lens with an IOL to restore clear vision.
Refractive Lens Exchange (RLE): Using IOLs to correct severe refractive errors in patients unsuitable for laser eye surgery.
Astigmatism Correction: Implanting toric IOLs during cataract surgery to simultaneously address astigmatism.
Related Terms
Ophthalmic Implants: A broader category that includes IOLs and other vision-related implants.
ISO 11979: An international standard governing the safety and performance of IOLs.
Refractive Errors: Vision issues like myopia, hyperopia, or astigmatism corrected by IOLs.
Cataract Surgery: The primary surgical procedure for which IOLs are used.