Many people wear glasses to compensate for the fact that the optical system of their eye does not focus a sharp image on the retinas. Once you have reviewed the videos below, discuss at least three of the disorders of focusing. Be sure that you are discussing the complete epigenetic origin which should include a discussion of the genetic/biological origin and the environment influence related to these disorders of focusing. Include in your discussion the impact of culture in the development of the optical system at various stages of the lifespan. Support your belief and use specific examples.
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