Optical lenses; ophthalmic lenses; contact lenses; cases for contact lenses; eyeglasses; sunglasses; cases for eyeglasses and sunglasses; frames for eyeglasses; frames for sunglasses; frames for spectacles; chains for eyeglasses; chains for sunglasses; cords for spectacles; cords for eyeglasses; cords for sunglasses; parts for spectacles; goggles; wearable computers; wearable communications apparatus; wearable computer peripheral devices; computer application software for use with wearable computer devices.