Devices or methods enabling eye-patients to replace direct visual perception by another kind of perception

Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand > Devices or methods enabling eye-patients to replace direct visual perception by another kind of perception

Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand (caps with means for protecting the eyes A42B1/0181; visors for helmets A42B3/22; eye baths A61H35/02; sunglasses or goggles having the same features as spectacles G02C) > Devices or methods enabling eye-patients to replace direct visual perception by another kind of perception