Second generation:

1
Second generation Collamer (?) Fyodorov lens
2
Third generation Staar ICL

• -Material Hydrophilic collagen polymer (63
  hydroxy-ethyl-methyl-acrylate 0.2 porcine
  collagen 3.4 benzofenone for UV absorption)
• -Water content 34
• -Refractive index 1.45
• -Optical zone 4.5-5.5 mm
• -11.0-13.0 mm long 7.0 mm wide
• -Thickness 50 mm at the optic zone 500-600 mm
  at the haptic zone 100 mm at the haptic
  footplates

3
Third generation Staar ICL
4
Third generation Medennium PRL

• -Material Highly purified silicone
• -Refractive index 1.46
• -Optical diameter 4.5-5.0 mm
• -10.8 or 11.3 mm long
• -6.0 mm wide
• -One-size-fits-all design
• -Not fixed in the ciliary sulcus floating on
  the natural crystalline lens

5
Third generation Medennium PRL
6
Phakic posterior chamber IOLs

• Cells involved in crystalline lens and capsular
  bag opacification
• Evolution of designs of PPCIOLs
• Relevant aspects of fixation and sizing
• Sizing issue New studies
• Surgical implantation
• Relationship between cataract and myopia
• Cataractogenesis
• Specimens analyzed in our Center
• Mechanisms
• Review of the literature
• Classification of cataracts after phakic IOL
  implantation?

7
Second generation Chiron-Adatomed silicone lens
8
Second generation Chiron-Adatomed silicone lens
9
Third generation Staar ICL

• -Consecutive V models with different vaulting
  characteristics in order to reduce the
  possibility of cataractogenesis
• -Correct lens sizing is important
• too large excessive vaulting
• too small instability/decentration

10
Third generation Staar ICL
Oversized ICL
F. Trindade, MD, PhD, Proper size, positioning
of ICL are crucial, Ophthalmology Times, October
15, 2000 106.
11
Third generation Staar ICL
Central vault/ midperipheral contact
F. Trindade, MD, PhD, Proper size, positioning
of ICL are crucial, Ophthalmology Times, October
15, 2000 106.
12
Third generation Staar ICL
Undersized ICL
F. Trindade, MD, PhD, Proper size, positioning
of ICL are crucial, Ophthalmology Times, October
15, 2000 106.
13
Third generation Staar ICL
(Composite UBM)
Trindade F, Pereira F. Exchange of a posterior
chamber phakic intraocular lens in a higly myopic
eye. J Cataract Refract Surg 2000 26773-776