view of colorful tulips in glasses and monochrome background. different world perception. optimism, hopefulness, mental health

beauty blindness blossom color colorful colorless correction daltonism difference eyeglasses eyesight flower focus frame garden glasses green happiness happy health hope improve improvement lens look medical mental mindset monochrome motivation nature optical optimism perspective philosophy positive positivism positivist poster psychology sight spectacles spirit test thinking tulips viewpoint vision yellow