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13 Cards in this Set

  • Front
  • Back

Fundoscopic Exam

Right hand for right eye


Left hand for left eye

Retinal vessels

Arteries are brighter red and narrower than veins

Macula

Centered 2-2.5 disc diameters temporal to the optic disc



If macula is hard to see, have pt look directly into light

Visual acuity

20/400 means:


what normal person sees at 400 feet someone sees at 20 feet



Hyperopia = farsightedness


Myopia = nearsightedness



Presbyopia = inability to focus up close after age 40



Arcus senilis: grey or white circle around limbus


due to increased lipids


no effect on vision and benign


look at lipids and treat


does not go away



Pterygium: raised wedge shaped growth over conjunctiva, non cancerous

Blepharitis

usually staph or seborrheic dermatitis



RED, SCALY, GREASY FLAKES


Thick crusted lids


burning


itching


tearing



Management:


hot compresses


topical antibiotics: bacitracin or ERYC


vigorously scrub lashes and lid margins and rinse

Glaucoma

Increased ICP



Open-angle is chronic


Closed-angle is acute

S/S Glaucoma

Open-angle (chronic):


Elevated ICP


Cupping of the disc


Constriction of visual fields



Closed-angle (acute):


Extreme Pain


Blurred vision


Halos around lights


Pupil dilated or fixed

Diagnostics for Glaucoma

Tonometry


Tonometry screen by age 40 recommended

Management of Glaucoma

Open-angle (chronic):


Alpha-2-adrenergic (Alphagan, Brimonidine)


Beta-adrenergic blockers (Timolol)


Miotic Agent (Pilocarpine)



Closed-angle (acute):


Carbonic anydrase inhibitor (Diamoxl, Acetazolamide)


Osmotic diuretics (Mannitol)


Surgery

Cataracts

Clouding and opacification of the normally clear lens of the eye



Most common in patients 65+



Causes:


aging


heredity


trauma


toxins, drugs, tobacco, and alcohol theories


congenital


diabetes


AV sunlight exposure

S/S Cataracts

Painless


clouded/blurred vision


halos around lights


No red reflex


Opacity of lens

Management of Cataracts

change glasses as cataract develops


refer for surgery

Retinal Detachment

Flashes of light, esp. in peripheral



Refer for surgery