[PATHO] DISEASES OF EYE

Question 1

Premature infant
oxygen therapy
neovascularization & retinal detachment
impaired vision

Answer 1

Retrolental fibroplasia

Question 2

night blindness
hyperpigmentation of eye without inflammation

Answer 2

retinitis pigmentosa

Question 3

retinitis pigmentosa is caused by

Answer 3

mutation in gene encoding rhodopsin
loss of rods causes night blindness

Question 4

inheritance patterns of retinitis pigmentosa

Answer 4

autosomal dominant
autosomal recessive
sex-linked recessive

Question 5

histologically what can be found in an eye affected by retinitis pigmentosa

Answer 5

1-disappearance of rods & cons

2-2ry proliferation of pigment epithelium

3-ingrowth of glial membrane on optic disc

Question 6

acute suppurative inflammation of sebaceous glands of Zeis, apocrine glands of Moll & eyelash follicles

Answer 6

stye/ externalhordeolum

Question 7

acute suppurative inflammation of meibomian glands

Answer 7

internal hordeolum

Question 8

chronic inflammation of meiobomian glands

Answer 8

chalazion

Question 9

chalazion occurs due to

Answer 9

obstruction of drainage of secretions

Question 10

chalazion inflammatory process begins with

Answer 10

destruction of meibomian glands & duct
tarsal plate affection

Question 11

histologically what can be seen in case of chalazion

Answer 11

granuloma located in tarsal plate w/ fat globules (lipogranuloma appearance)

Question 12

acute suppurative intraocular inflammation exogenous or endogenous in origin

Answer 12

endophthalmitis

Question 13

acute stage of conjunctivitis is cc by

Answer 13

corneal edema
inflammatory cells infiltration
decreased corneal transparency

Question 14

chronic stage of conjunctivitis is cc by

Answer 14

small BVs proliferation in cornea
plasma cells + lymphocytes infiltration
pannus formation

Question 15

in trachoma C.trachomatis targets

Answer 15

conjunctival epithelium

Question 16

trachoma can be recognized by

Answer 16

intracytoplasmic inclusions
lymphoid follicles

Question 17

trachoma is cc by (8)

Answer 17

1-intracytoplasmic inclusions
2-lymphoid follicles
3-chronic inflam cells infiltrate
4-macrophages
5-corneal+conjunctival scarring
6-eyelid deformity
7-inturned eyelashes
8-blindness

Question 18

inclusion conjunctivitis causes

Answer 18

mild keratoconjunctivitis

Question 19

inclusion conjunctivitis is caused by

Answer 19

C. oculogenitalis

Question 20

chronic granulomatous lesion of eye

Answer 20

granulomatous uveitis

Question 21

bilateral diffuse granulomatous uveitis following penetrating injury to one eye

Answer 21

sympathetic ophthalmia/uveitis

Question 22

sympathetic ophthalmia/uveitis pathogenesis

Answer 22

1-trauma to one eye
2-auto sensitivity reaction to injured uveal tissue
3-visual loss in both eyes

Question 23

histologically what can be seen in case of sympathetic ophthalmia

Answer 23

epithelioid cells
lymphocytes
no necrosis
no neutrophils
no plasma cell infiltration

Question 24

in case of sympathetic uveitis, if lens is injured it develops into

Answer 24

phacoanaphylactic endophthalmitis

Question 25

in diabetic retinopathy risk is greater in

Answer 25

type I diabetics
women