Halloween is a popular time for people to use colored contact lenses to enhance their costumes. From blood-drenched vampire eyes to glow-in-the-dark lizard lenses, costume contacts can certainly add that desired extra spooky touch.
The fact is, it is illegal to sell colored contact lenses without a prescription in the United States. All contact lenses are medical devices that require a prescription and proper fitting by an eyecare professional.
Never buy colored contact lenses from a retailer that does not ask for a prescription. There is no such thing as a “one size fits all” contact lens. Lenses that are not properly fitted may scratch the eye or cause blood vessels to grow into the cornea.
For more on Halloween eye safety, here is an article from All About Vision that talks about Halloween Contact Lenses: http://www.allaboutvision.com/contacts/theatrical.htm”>http://www.allaboutvision.com/contacts/theatrical.htm