ENCROMA color vision kids outdoor deutan lens color blindness correction glasses 49-15-125 Twain Black Junior Designed to improve color blindness. For Red/Green (deutan) color blindness Glasses are previously owned and come with the original glass case although my son wrote his name and number on the case which has been scribbled out. Aside from the case, these are amazing glasses that made significant improvements in my son’s life, allowing him to see color like he never did before.