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Cataract and cataract surgery

Cataract and cataract surgery. By Dr. ABDULMAJID ALSHEHAH Ophthalmology consultant Anterior Segment and Uveitis consultant. Anatomy and physiology of the human lens History of cataract and cataract surgery Current standards for cataract surgery. Anatomy and physiology of the human lens.

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Cataract and cataract surgery

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  1. Cataract and cataract surgery By Dr. ABDULMAJID ALSHEHAH Ophthalmology consultant Anterior Segment and Uveitis consultant

  2. Anatomy and physiology of the human lens • History of cataract and cataract surgery • Current standards for cataract surgery

  3. Anatomy and physiology of the human lens

  4. Anatomy and physiology of the human lens

  5. Cataract

  6. Cataract Epidemiology • Age-related cataracts are responsible for 51% of world blindness (WHO) • In the United States, age-related lens changes have been reported in : • 42% between the ages of 52 and 64. • 60% between the ages 65 and 74. • 91% between the ages of 75 and 85.

  7. Cataract symptoms • An opacity in the lens of the eye: • •00causes a painless loss of vision • •00causes glare • •00may change refractive error.

  8. Vision through cataract

  9. In infants, cataract may cause amblyopia • failure of normal visual development. • Urgent cataract surgery is needed.

  10. Cataract signs • Reduced visual acuity • Reduced contrast sensitivity. • Dark or dim red reflex

  11. Cataract signs • Pupil response ?

  12. Sutural cataract

  13. Traumatic cataract

  14. Causes of cataract • Age related idiopathic is the most common. • result of the cumulative exposure to environmental and other influences such as smoking, UV radiation and elevated blood sugar levels.

  15. Causes of cataract

  16. Cataract treatment • Medications ? • Surgery

  17. History of cataract surgery

  18. History of cataract surgery • Cataract surgery is one of the oldest surgical procedures known, first documented in the fifth century BC. Cataract Surgery in Antiquity. American Academy of Ophthalmology. 2008. http://www.aaofoundation.org/what/heritage/exhibits/online/cataract/antiquity.cfm.

  19. ICCE (intra-capsular cataract extraction) • ICCE (intra-capsular cataract extraction)

  20. Modern Cataract surgery

  21. ECCE (Extra-Capsular cataract extraction)

  22. ECCE (Extra Capsular cataract extraction)

  23. phacoemulsification

  24. phacoemulsification

  25. phacoemulsification

  26. phacoemulsification

  27. Questions • Vedios

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