Cosmetic lenses designed for temporary alteration of eye color or appearance, specifically for Halloween costumes and special effects, are available without corrective power. These products offer a purely aesthetic change, differentiating them from prescription lenses intended to correct vision impairments.
The popularity of decorative eye wear stems from the desire for enhanced costume realism and dramatic visual impact. Historically, such enhancements were achieved through makeup or primitive costuming techniques. The advent of safe, mass-produced lenses provides a more convenient and visually striking alternative. However, the absence of a prescription necessitates careful handling and awareness of potential risks.