cassetteIOL

CassetteIOL refers to a class of intraocular lenses (IOLs) that are delivered to the eye within a small, sterile polymer cassette or cartridge. The cassette design keeps the optical element preloaded and protected until implantation, reducing handling steps during cataract surgery and potentially decreasing contamination risk. Cassettes are typically made from biocompatible polypropylene or polyethylene and are sealed with a disposable blade or cap that is removed at the time of implantation.

The use of cassette‑delivered IOLs emerged in the early 2000s as a response to higher demand for precision and safety in refractive cataract procedures. Compared with traditional multi‑piece delivery systems, cassetteIOLs offer a streamlined workflow: the surgeon inserts the entire preloaded unit through the cataract incision, activates the delivery mechanism, and the lens unfolds within the eye. This can shorten surgical time and reduce the number of instrument exchanges. Cassettes also support a variety of IOL brands and models, allowing manufacturers to offer both premium and standard lenses in a preloaded format.

Clinical studies have reported comparable visual outcomes and low complication rates for cassetteIOLs versus conventional preloaded systems. Potential drawbacks include a slightly higher manufacturing cost and a need for careful handling to avoid damage to the lens during cassette release. Regulatory bodies such as the FDA and CE require rigorous sterility and mechanical testing for cassetteIOL products before market approval. In practice, they are widely used in routine cataract operations, especially where surgical efficiency and sterility are prioritized.