WK 3b- Presbyopia

 discuss (Refractive) Presbyopia disorder 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. 

Include 1 reference

https://www.youtube.com/watch?v=o0DYP-u1rNM