1. Hydrogels / Applications in Opthamology
Frequently, presenters must deliver material of a technical nature to an audience unfamiliar with the topic or vocabulary. The material may be complex or heavy with detail. To present technical material effectively, use the following guidelines from Dale Carnegie Training®.
Consider the amount of time available and prepare to organize your material. Narrow your topic. Divide your presentation into clear segments. Follow a logical progression. Maintain your focus throughout. Close the presentation with a summary, repetition of the key steps, or a logical conclusion.
Keep your audience in mind at all times. For example, be sure data is clear and information is relevant. Keep the level of detail and vocabulary appropriate for the audience. Use visuals to support key points or steps. Keep alert to the needs of your listeners, and you will have a more receptive audience.
11/6/2018

2. Polyelectrolyte Hydrogels
Hydrophilic polymer chains containing positive or negatively charged functional groups that interact electrostatic interactions to form a cross-linked network that attracts water
11/6/2018

3. Hylauronic Acid
11/6/2018

4. Polyelectrolyte Multilayers
Layer by layer deposition
11/6/2018

5. Alginate gels
11/6/2018

6. Enzyme Immobilization
11/6/2018

7. Cell Encapsulation
11/6/2018

8. Alginate gels
11/6/2018

9. 11/6/2018

10. 11/6/2018

11. Alginate gels
11/6/2018

12. Applications artificial tendon and cartilage
wound healing dressings (Vigilon®, Hydron®,
Gelperm®)
non-antigenic, flexible wound cover
permeable to water and metabolites
low-strength
artificial kidney membranes
artificial skin
maxillofacial and sexual organ reconstruction materials
vocal cord replacement
11/6/2018

13. Corning® Ultra Low Attachment Products Unique hydrogel surface inhibits cell attachment
                                                      
11/6/2018

14. Hydrogels: Applications
Earliest biomedical application contact lenses
good mechanical stability
favorable refractive index
high oxygen permeability
needs hygienic maintenance
unable to correct for astigmatism
11/6/2018

15. Acrylates
11/6/2018

16. Methacrylates
11/6/2018

17. Poly(methyl methacrylate)
11/6/2018

18. 11/6/2018

19. 11/6/2018

20. Poly(2-hydroxyethylmethacrylate pHEMA
11/6/2018

21. Hydrogels: PHEMA The most widely used hydrogel
water content similar to living tissues
inert to biological processes
shows resistance to degradation
permeable to metabolites
not absorbed by the body
withstands sterilization by heat
prepared in various shaped and forms
11/6/2018

22. Contact lens PMMA HEMA Fabrication methods
Computer assisted cutting (lathe)-PMMA rods
Spin casting-polymerization
Molding-polymerization
11/6/2018

23. 11/6/2018

24. 11/6/2018

25. Intraocular lens PMMA HEMA
Polymer backbone - mixture of PMMA and PHEMA
Varying water contents
Additives such as UV blockers
11/6/2018

26. 11/6/2018

27. 11/6/2018

28. 11/6/2018

29. 11/6/2018

30. 11/6/2018

31. 11/6/2018

32. 11/6/2018

33. Foldable IOL complications/explantations -
11/6/2018

34. Reasons for Revision Surgery
Incorrect lens power seen most commonly
Glare/optical aberrations
Dislocation/decentration
Late postoperative opacification
11/6/2018

35. IOL Optic Opacification
Surface opacification
Opacification within the substance of the optic
Analysis of opacifications reveals presence of calcium
Calcium staining
Scanning electron microscopic analysis
11/6/2018

36. 11/6/2018

37. 11/6/2018

38. 11/6/2018

39. 11/6/2018

40. 11/6/2018

41. 11/6/2018

42. 11/6/2018

43. Accommodative IOL: 1CU (HumanOptics)
Total diameter: 9.7 mm
11/6/2018