Open eyes and observes. Let the light penetrate through your retina. Everything is under your eyes there: the beautiful, the ugly, the colors, the luminosity, the reflections, the transparency, the prospect... Although it limits itself to appearances, so many things can be perceived. Because on the contrary the blindness is convenient to the shock (physical and emotional). Then get the images to forge you a criticism on what surrounds you. But know that what you see can have quite other perception according to the glance which you throw it. The vision is too subjective.