uv ultravoilet rays electrotherapy .pptx

ultravoilet

1. Facilitator: Name: Dr. Somia Faisal PT

2. So far we covered….

3. PHYSIOLOGICAL EFFECT OF UV RAYS

4. LOCAL EFFECT OF UV RAYS Erythema Reaction Thickening of epidermis Desquamation Pigmentation

5. ERYTHEMA REACTION

6. Cont ……. Shorter wavelength UV rays are absorbed in superficial epidermis & longer wavelength in deep epidermis There are four degrees of erythema : E1 = 1 st degree : slight pink fades within 24 hours E2 = 2 nd degree : redness of skin and fade with 4-6 hours, slight pigmentation, peeling powdery E3 = 3 rd degree : fiery, intense, painful redness with edema fade within 1-2 hours, marked pigmentation, peeling in sheets E4 =4 th degree: blister formation

7. THICKENING OF EPIDERMIS

8. DESQUAMATION

9. PIGMENTATION

10. GENERAL EFFECT OF UV RAYS 1.Formation of Vitamin D 2.Esophylactic Effect 3.General tonic effect

11. Formation of Vitamin D

12. Esophylactic Effect

13. General Tonic Effect

14. THERAPEUCTIC EFFECT OF UV RAYS

15. GENERAL THERAPEUTIC EFFECTS OF UV RAYS Formation of Vitamin D Improved resistance to infection Pigmentation & improved condition of skin General tonic effect

16. Formation of Vitamin D

17. Improved resistance to infection

18. Pigmentation & improved condition of skin Psorasis

19. General Tonic Effect

20. LOCAL THERAPEUTIC EFFECTS OF UV RAYS Increased blood supply to the skin Destruction of bacteria & tissues Increased resistance of skin to infection Desquamation Counter irritation

21. Increased blood supply to the skin

22. Destruction of bacteria

23. Destruction of tissues

24. Increased resistance of skin to infection

25. Desquamation Treatment of acne

26. Counter-irritation

27. DANGERS Conjuctivitis Burns Electric shock

28. Cont …… Premature aging & skin cancer are the side effect of prolonged UV exposure Overdose ( skin become red hot sore general symptom headache nause vomiting rise in temperature)