through glasses frame. view of colorful calla lilies in glasses and monochrome background. different world perception. optimism,

accessory better blindness calla change color colorful colorless concept correction daltonism difference eyeglasses eyesight flower focus frame glasses green happiness happy health hope improve improvement lens lilies look medical mental mindset monochrome motivation nature optical optimism perspective philosophy positive positivism positivist psychology sight spectacles spirit test thinking viewpoint vision