Red contacts are safe to wear as long as you treat them as medical devices and not just fashion accessories. In the United States, all contact lenses require a prescription from an eye doctor, even if you have perfect vision.

To make sure your eyes stay healthy while wearing red lenses, follow these safety steps:

1. Buy From Trusted Retailers: Only purchase FDA approved lenses. Low quality lenses from unregulated shops can use toxic dyes or have rough edges that scratch the eye.
2. Get a Professional Fitting: An eye doctor needs to measure your eye to ensure the lens fits properly and allows enough oxygen to reach your cornea.
3. Never Share Lenses: Sharing colored contacts is the most common cause of eye infections and permanent vision damage.
4. Check for Irritation: If your eyes become red (aside from the lens color), itchy, or painful, remove the lenses immediately.

No, you should never sleep in red contact lenses. Costume lenses are typically made from materials that are thicker and less breathable than standard clear lenses. Sleeping in them starves your eyes of oxygen, which can lead to corneal swelling, severe infections, or ulcers. Most manufacturers and doctors recommend wearing decorative lenses for no more than 6 to 8 hours at a time during the day to prevent irritation.

Because red contacts are often worn for special events and then stored, proper maintenance is vital to prevent bacteria growth:

Use Fresh Solution: Always store your lenses in a clean case with fresh multipurpose disinfecting solution. Never reuse old solution.

Follow Replacement Dates: Check if your lenses are daily disposables, monthly, or yearly. Throw them away once the time limit is up, even if you have only worn them a few times.

Wash Your Hands: Always wash and dry your hands thoroughly before touching your lenses or your eyes.