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Wet heat sterilization is a process used to disinfect ophthalmic surgical tools and specialty contact lenses using pressurized steam. In an eye surgery center, this is the gold standard for ensuring that instruments used for cataracts or LASIK are completely free of bacteria, viruses, and fungal spores.
read more about wet heat sterilization process ...Ocular tissues are highly susceptible to infection:
The autoclave uses saturated steam at approximately 121 degrees Celsius. For eye care professionals, this ensures that any diagnostic contact lens or surgical probe is rendered sterile, preventing the transmission of serious conditions like endophthalmitis.
Wet heat is used during the final manufacturing of glass and some specialty rigid gas permeable lenses. However, standard soft lenses are usually sterilized in their final blister packs using this method to ensure a long shelf life and patient safety.
Frequent wet heat cycles can cause corrosion on low quality metals. High end ophthalmic tools are typically made of surgical grade stainless steel or titanium to withstand the repetitive high pressure steam environment without losing their precision edge.
No. You should never autoclave your personal eyeglasses or soft contact lenses at home. This process is strictly for medical grade tools and professional manufacturing.
A standard medical cycle usually takes 15 to 30 minutes at peak pressure to ensure every microorganism on the surgical tools is destroyed.
Wet heat is often preferred because it is faster and does not leave behind chemical odors or residues that could irritate the sensitive surface of the eye.
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2. Disinfection of Contact Lenses. American Academy of Ophthalmology. https://www.aao.org/eye-health/glasses-contacts/contact-lens-care. Accessed February 9, 2026.
3. Methods of Sterilization and Disinfection. StatPearls (NCBI Bookshelf). https://www.ncbi.nlm.nih.gov/books/NBK470584/. Accessed February 9, 2026.
4. Clinical Contact Lens Practice. Bennett ES, Weissman BA. Lippincott Williams & Wilkins; 2015.
5. Chronological development of contact lens disinfection. ScienceDirect. https://www.sciencedirect.com/science/article/pii/S138151481630114X. Accessed February 9, 2026.