Hadith 1

purity does not appear as it is necessary, or the abundance of white moisture or its cycle, to cover up the skin or the intensity of the blackness of the uvea. So when these causes are gathered, the eye would be intensely dark. And the causes of cyanosis are opposites to that, and if the causes of kohl and cyanosis are mixed and matched, the eye will be weak, and if the causes of cyanosis exceed the causes of kohl, it will be inferior. And this layer was created on this colour because it is the most suitable of colours to the light of sight, as the white disperses its light, and the black brings it together and intensifies it, and the blue, due to its moderation, brings together the light as a moderate group and strengthens it. Rather, it was created thick to prevent the sun from shining on the light of the eye and to be a strong mediator between moisture and the stratum corneum in front of it, and for this reason it made its appearance that follows it harder. And in its apparent rigidity, another benefit is that the uveal foramen should remain open for the rigidity of what is preserved in it, undisturbed by its edges, and by the soft, soft matter. In fact, this layer is two internal layers with velvet and the other solid, and the cornea was made transparent so as not to obscure the light of sight from penetrating it, and solid to be a protection for the other layers and moisture from pests and to preserve them in their positions and shapes. And the white moisture was placed in front of the glacier to obscure the power of the rays and lights so that they would not be overcome, and the apparent glacier was made excessively, because the realisations of the resemblances fall in a large part of it, so the vision in it would be stronger, as the round does not align with the thing except by a small part, and the glass was made thick so that it would not flow, and Made to be from behind the glacier to it to be closer to the appearance of the food. The icy moisture is the most honourable part of the eye and the rest of the layers, and moisture serves it and protects it, and it is the locus of visual perceptions from the side of the soul coming to it from the two hollow nerves that are the locus of the perceptive visual power of lights, colours, movements, quantities, and other things through the mediation of the soul in it. And the two nerves were made hollow due to the need for the abundance of the soul that carries this power, unlike the other senses, but they were made convergent in order for the soul to gather with it even if one of the eyes befalls a disease whose light is not lost, but the light is rushed from this complex entirely to the right eye. Because of that, he becomes more visually impaired, and for this reason whoever closes one of his eyes, his other eye becomes stronger and its uveal hole widens, and because the two eyes have one lead to which the ghost of the sighted is united there, and the vision of the two eyes becomes one so that the ghost represents the common destiny. Therefore, it is presented to the strabismus that they see the same thing as two things when one of the pupils passes upward or downward, thereby nullifying the straightness of the course to the intersection, and before the common boundary, another common limit is presented to the fracture of the nerve, and so does everyone whose limbs are relaxed and their pupils swayed like drunks. Such is the feeling of two things about one thing for someone who twists his middle finger on the index finger and turns something round with them, for the middle finger feels out of alignment with the top and the forefinger out of alignment with the bottom, and because each nerve is supported by the other and is based on it and it becomes as if it sprouted from near the pupil. So the rush of light into the eye is stronger like a pool of water that takes a little water, because if it were not for