Presbyopia

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Presbyopia

  1. 1. PRESBYOPIA
  2. 2. DEFINITION  Decrease in the amplitude of accommodation or loss of accommodative facility with age.  Old man’s eye.
  3. 3. ETIOLOGY  Natural part of the aging process.  Earlier in hyperopes.
  4. 4. VISION
  5. 5. OPTICS
  6. 6. SYMPTOMS  The need to hold reading material at arm's length.  Blurred near vision  Headache  Fatigue  Symptoms worse in dim light.
  7. 7. DIAGNOSIS  Visual Acuity test for near.
  8. 8. Slit lamp examination
  9. 9. Retinoscopy
  10. 10. INCREASING NEAR POINT OF ACCOMMODATION WITH AGE Age (years) Distance (cm) 10 7 20 10 30 14 40 20 50 40
  11. 11. Age (years) Amplitude (D) Age (years) Amplitude (D) 10 14.00 45 3.50 15 12.00 50 2.50 20 10.00 55 1.75 25 8.50 60 1.00 30 7.00 65 0.50 35 5.50 70 0.25 40 5.00 75 0.00
  12. 12. CORRECTION
  13. 13. SPECTACLES Plus lens (or) Convex lens
  14. 14. CONTACT LENS
  15. 15. SURGERY  Monovision LASIK  Monovision & CK  IntraCor  Refractive lens exchange  Corneal Inlays & Onlays
  16. 16. MONOVISION LASIK
  17. 17. CONDUCTIVE KERATOPLASTY
  18. 18. INTRACOR
  19. 19. REFRACTIVE LENS EXCHANGE
  20. 20. CORNEAL INLAYS & ONLAYS

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