EnChroma Altavista is our fitover wrap-around frame that delivers superior coverage and clear, vibrant colour for those with Strong Protan  colour blindness. Altavista fitover glasses are designed to be conveniently worn over prescription glasses. Wrap-around construction enables excellent coverage from stray light through the top and side of the frame. Ideal for those with sensitive  eyes or medical concerns. To wear over prescription glasses, the total width of the prescription glasses should be 135 mm or less (5 3/8ths inches), and the height of the glasses 42 mm or less (1 5/8th inches). To reduce internal reflections between the lenses, glasses that have an anti-reflection coating are recommended.

Case included. Frame size: Large 64-12-128.