Designed for orthoptic training and vision therapy, these lightweight Red/Blue Anaglyph Glasses feature modern styling for a comfortable, secure fit. Ideal for use in clinical, school-based, or at-home settings, they provide high-quality performance during visual exercises that support binocular vision and depth perception. These specialized filtered glasses are used with various red/blue orthoptic training, anti-suppression training, and ophthalmic exercises. The adult size frame is designed to fit most individuals aged 6 years and older. Sizing Details: Frame Width (Temple-to-Temple): 5.44 inches/138 mm Pupillary Distance (PD): 2.06 inches/52 mm Perfectly suited for use with stereopsis tests, including those offered in the GLD-Vision® program and other vision screening protocols, like our stereoacuity cards.