Card Set Information

2011-11-26 21:34:00
EYE pathology

Show Answers:

  1. MCC of conjunctival scarring?
    chlamydia trachomatis
  2. MCC of conjunctivitis?
  3. Raised yellow subepithelail connective tissue in the conjunctivia due to sun exposure are called?
  4. Pterygium and Pingueceula are both caused by what?
    sun exposure
  5. Abnormal connective tissue located on the nasal conjuctiva is called?
  6. Trachoma is characterized by what?
    Inflammatory infiltrate with follicles and fibrosis of the conjuctiva leading to scarring
  7. Fibrovascular tissue growth on the cornea in trachoma is called what?
    Pannus---just like in Rheumatoid arthritis
  8. What is the difference between the carcinoma in situ and squamous cell carcinoma of the conjunctiva?
    • carcinoma in site is not invasive
    • sqamous cell carcinoma is invasive
  9. Copper in wilson's disease deposits where?
    descemet's membrane
  10. Keratitis?
    inflammation of the cornea
  11. Cause of keratitis?
    Herpetic infections
  12. Keratomalacia or corneal ulceration is due to what deficiency?
    Vita A
  13. What vitamin is used for Measles?
    Vitamin A
  14. Vitamin A is used for what/
    differentiation into specialized tissus--pancreatic cells, mucus-secreting cells and epithelium
  15. Closed angle glaucoma is caused by what?
    closure of the iris and lens corner preventing the aqous humor drainage from the posterior chamber to the anterior chamber
  16. Open angle or closed angle are an emergency?
    closed angle and its painful
  17. What is the uvea?
    Choroid layer + iris+ ciliary body
  18. What are the layers of the eye going from outside in?
    • sclera
    • choroid
    • retina
  19. Uveitis?
    • inflammation of either
    • choroid
    • iris
    • ciliary body
  20. Sympathetic ophthalmia?
    injury to one eye releases antigens which enter lymphatics of conjunctiva which stimulate immune system attack the other other
  21. What kind of immune rxn is seen in uveitis?
  22. What causes uveitis
    • sarcoidosis
    • pneumocysti
    • cmv
    • chlamydia
  23. Causes of uveitis?
    • bacterial--TB, leprody, syphilis
    • viral--cmv, herpes zoster
    • Fu
  24. What helminth causes blindness via uveitis?
    Onchocerca volvulus
  25. Uveal malnomas occur where in the eye?
    • iris
    • choroid
  26. Most common intraocular tumor?
    choroid melanoma
  27. Cataract?
    • opacification of lens due to
    • DM
  28. Posterior sub-capsular cataract is due to?
    steroid use
  29. Morgagnian cataract?
    liquification of lens
  30. Retinopathy of prematurity is due to what?
    high oxygen given in neonatal respiratory distress syndrome
  31. What are the pre-proliferative pathologies of the eye in DM?
    • microaneurysms--soft exudates---microinfarcts
    • hard exudates--protein leakage
    • edema
    • hemorrhage
    • basement membrane thickening
    • neovascularization
  32. Copper wire appearance of retinal vessels is seen in what?
    HTN retinopathy
  33. Retinitis pigmentosa is caused by what?
    • mutation in peripherin and opsin
    • loss of rods--night blindness
    • loss of cones--loss of high acuity vision
  34. 3 types of retinal detachment?
    • non-rhegmatogenous detachment-protein rich exudate separates the retina from the retinal pigment epithelium
    • vitrous detachemnt--posterior hyalonoid humor separates from the internal limiting membrane
    • rhegmatogenous detachment---vitrous humor pulls on the retina and liquified vitreous humor separates the retina from the retinal pigment epithelium
  35. Age related macular degeneration?
    loss of central vision and hemorrhages in the macula
  36. Dry ARMD vs wet?
    • dry--due to fat deposits..slow decrease in vision
    • wet--fast bc of neovascularization