White contact lenses are safe to wear as long as you treat them as medical devices. In the United States, even "plano" (non-prescription) costume lenses require a prescription from an eye doctor. This ensures the lenses fit the specific curve of your eye and allow enough oxygen to reach your cornea.

To keep your eyes safe during Halloween, follow these rules:

• Buy From Reputable Sources - Only purchase FDA-approved lenses from trusted retailers. Avoid buying contacts from beauty supply stores, flea markets, or novelty shops, as these may use unsafe dyes or be contaminated.
• Never Share Your Lenses - Even if you just want to see how they look, sharing contacts can spread serious bacteria and lead to permanent vision loss.
• Check the Expiration - Costume lenses often have a specific "replacement schedule," such as 1 day, 30 days, or 90 days. Always throw them away once that time is up, regardless of how many times you wore them.

No, you should never sleep in white contact lenses. Costume lenses are generally thicker and less breathable than standard clear contacts. Wearing them overnight can "suffocate" your cornea, leading to swelling, painful infections, or corneal ulcers. Most eye care professionals recommend wearing decorative lenses for no more than 6 to 8 hours at a time. If you feel any pain, redness, or excessive watering, remove the lenses immediately and give your eyes a rest.

Proper hygiene is the key to a safe Halloween experience. Since many people only wear white lenses once or twice a year, it is easy to forget the basics:

1. Wash Your Hands - Always scrub your hands with soap and dry them with a lint free towel before touching your lenses.
2. Use Fresh Solution - Never use tap water or saliva to clean your lenses. Only use a sterile multipurpose contact lens solution recommended by your doctor.
3. Clean Your Case - Bacteria can grow in your lens case. Rinse it with solution after each use and let it air dry upside down.
4. Follow the Instructions - Every pair of lenses comes with specific care and wear guidelines. Reading these ensures your eyes stay healthy while you enjoy your transformation.