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Anatomy

 

Shape - Biconvex  

Diameter – 10mm*        

Refractive power – 18-20D*     

Highest refractive index 1.42 nucleus(centroid)

  1. Structure
    1. Lens capsule:
      • Thickest – Ant. Capsule in mid periphery        
      • Thinnest Capsule is thinnest at posterior pole. *
        Nucleus has the oldest cells. Cortex youngest
  2. Structure    
    1. Embryonal nucleus.
    2. Fetal nucleus- Y sutures – 2, anterior normal, posterior inverted
    3. Infantile nucleus              
    4. Adult nucleuse
    5. Cortex                     
    6. Capsule
Posterior surface more curved than anterior.





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