Lens ii 20.04.16,n.swathi.n

1. Dr.Swathi.N
MGMC & RI

2. Objectives:
• Stages of senile cataract
• Lens induced glaucomas
• Pre-op assessment of cataract

3. Age related senile cataract –
• Cortical; nuclear
• Lamellar separation
• Incipient cataract
• Immature cataract
• Mature cataract
• Intumescent cataract
• Hypermaturity – morgagnian ; sclerotic

7. Senile nuclear sclerosis
(yellow pigmented protein
derived from tryptophan)

8. Symptomatology :
• Asymptomatic
• Astigmatism
• Second sight / index myopia
• Defective vision
• Sudden painful loss of vision ???

9. Lens induced glaucomas
• Phacomorphic glaucoma
• Phacotopic glaucoma
• Phacolytic glaucoma

10. Phacomorphic glaucoma

11. Phacotopic glaucoma

12. Phacolytic glaucoma

13. Management :
Cataract surgery

14. Pre operative evaluation :
• Visual acuity & refraction
• Intraocular pressure
• Patency of NLD
• Slit lamp evaluation & LOCS II
• Fundus
• A – scan; K reading – IOL power calculation
• Systemic : diabetes, hypertension

15. • Types of senile cataract
• Stages of cortical cataract
• Lens induced glaucomas

16. Suggested reading :
• Management of cataract
• Intra-operative complications of cataract
surgery
• Immediate & late post operative
complications of cataract surgery