The abnormal elongation of the myopic eye. Our eyes were never designed by evolution for the way we use them today. In order for the eye to focus on close objects, the ciliary muscle tightens and causes the lens of the eye to thicken. Constant focusing on close objects causes a spasm of the ciliary muscle, a constant pulling on the sclera and a related pressure increase in the vitreous, or large chamber of the eye. As the sclera stretches and becomes larger, the body creates more liquid in the vitreous to fill the increased volume. This is the body’s simple way of refining the vision by reducing the normal farsightedness of the infant. For a more technical description of this process, see Myopter Research Paper. This natural elongation of the eye becomes abnormal when the eye has no farsightedness left and moves into a myopic condition. The suspensory ligament which supports the lens, and the ciliary muscle (ciliary body) which surrounds the lens and controls its shape, can be seen in this diagram.
This dynamic lengthening of the eye was discovered by Francis A. Young, Ph.D., former Director of the Primate Research Center at Washington State University in Pullman, Washington, and this country’s foremost myopia researcher with over 35 years of work in the field and more than 85 published research studies. A partial list of his published papers can be seen at Francis Young Papers.