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Path 15
Basic Pathology of the Eye
Question | Answer |
---|---|
What is Blepharitis | inflammation of the eyelids |
What is Hordeolum | acute, purulent, focal inflammatory lesion of the eyelid often due to a bacterial infection |
What is a Chalazion | Chronic localized lipogranlomatous inflammation centered around the sebaceous glands of the eyelid |
What is the common etiology for a chalazion | obstruction of the sebaceous gland orifice |
What is Exophthalmos | also known as proptosis is the forward protrusion of the eye associated with Graves disease |
What is the most common eye disease | conjunctivitis |
What does conjunctivitis look like | hyperemic conjuctiva blood vessels, crusting, discharge, matting in the morning |
What is the organism associated with conjunctiva trachoma | Chlamydia trachomatis serotypes A, B, and C |
Most common cause of blindness in areas in Asia, the Middle East, and Africa | Conjuntiva Trachoma |
What is Pyterygium | Pingueculum that grows into the cornea in an insect wing shape that forms a fold of vascularized conjunctiva |
What are the stromal dystrophies (marilyn monroe always gets her men (in) LA County) | Macular, Mucopolysaccharide, Alcian Blue, Granular, Hyaline, Masson-Trichrome, Lattice/Amyloid, Congo red |
What is the most common cause of reversible vision loss in the elderly | cataract |
What is the pathogenesis of cataract formation | lens fibers harden and are compressed centrally (nuclear sclerosis) |
If a retinal hemorrhage appears as a blot it is located? | in the outer retina |
If a retinal hemorrhage appears as a dot it is located? | inner plexiform |
If a retinal hemorrhage appears as a splinter it is located? | inner retina |
If a retinal hemorrhage is melanoma like it is located? | sub-RPE or suprachrooidal |
What is the main cause of retinal arterial occlusion | emboli |
What is the pathology noted with arterial occlusion | cotton wool spots, retinal swelling, thin artery, cherry red spots with later inner retinal and optic nerve atrophy |
What is amaurosis fugax | transient vision loss due to micro-emboli to CRA |
What do you see with nonproliferative diabetic retinopathy | retinal dot/blot hemorrhages, hard exudates, cotton-wool spots, retinal swelling, microaneurysms |
When do diabetic retinopathies affect vision | when they involve the macula or PM bundle or are associated with macular edema |
Neovascularization seen in proliferative diabetic retinopathy is due to release of ? | VEGF from ischemic retinas |
What may explain all signs of Diabetic retinopathy | Retinal ischemia and incompetence of retinal circulation with leakage |
What is "Snowflake" cataract | white spoke-shaped opacities adjacent to the lens capsule that progresses rapidly over days to weeks due to osmotic effect of sorbitol in the lens |
What are the three types of retinal detachment | Rhegmatogenous, Tractional, Exudative |
What is the most common cause of vision loss in those older than 60 | Age related macular degeneration |
What are the two types of Age Related Macular Degeneration | Wet and Dry |
What is the most important cause of Optic Nerve Head edema | Increased ICP |
Glaucoma is most commonly associated with? | increased intraocular pressure |
What are the two types of acquired glaucoma | open angle and closed angle |
Which has a more acute symptomatic onset open or closed angle glaucome | closed |
Which type of glaucoma includes symptoms of decreased vision, ocular pain, headache, nausea/vomiting, red eyes, halos, and light sensitivity | closed angle glaucoma |
What is the most common primary intraocular malignancy | Melanoma |
What are the three cell types of melanoma in the eye | spindle A, spindle B, and Epithelioid (worst prognosis) |
What is the most common primary intraocular malignancy in children | Retinoblastoma |
When do you most commonly see retinoblastoma in children | within the 1st 2 years of life |
How does retinoblastoma present | leukocoria, strabismus, poor vision, spontaneous hyphema, glaucoma, painful red eye |
What is the intraocular malignancy in which you see Rosettes | Retinoblastoma |