HEENT Flashcards
(131 cards)
Lesion is at the optic chiasm
Bitemporal Hemianopsia
Occlusion of a branch of the central retinal artery; Ischemia of the optic nerve can also produce the similar defect
Horizontal Defect
Causes Ptosis (3)
- Myasthenia Gravis
- CN 3 damage
- Damage to sympathetic nerve supply (Horner Syndrome)
A harmless yellowish triangular nodule in the bulbar conjuctiva
Pinguecula
Localized ocular inflammation of the episcleral vessels
Episcleritis
Causes Episcleritis (3)
- Rheumatoid Arthritis
- Sjogren Syndrome
- Herpes Zoster
A painful, tender, red infection at the margin of the eyelid
Hordeolum (Stye)
A subacute non-tender nodule caused by a blocked meibomian gland
Chalazion
Slightly raised, yellowish, well-circumscribed cholesterol-filled plaques that appear along the nasal portions of one or both eyelids
- Xanthelesma
A thin grayish white arc or circle not quite at the edge of the cornea
Corneal Arcus
A golden to red brown ring, sometimes shading to green or blue, from copper deposition in the periphery of the cornea found in Wilsons Disease
Kayser-Fleischer Ring
A superficial grayish white opacity in the cornea, secondary to an old injury or to an inflammation
Corneal Scar
A triangular thickening of the bulbar conjunctiva that grows slowly across the outer surface of the cornea, usually from the nasal side.
Pterygium
Opacities of the lenses visible through the pupil.
Cataract
Risk factors of Cataract (4)
- Older age
- Smoking
- Diabetes
- Corticosteroid use
Cataract that looks gray when seen by a flashlight
Nuclear Cataract
Cataract - if the pupil is widely dilated, the gray opacity is surrounded by a black rim
Nuclear Cataract
Cataract - produces spokelike shadows that point - gray against black, as seen with a flashlight, or black against red with an ophthalmoscope
Peripheral Cataract
Effect on pupil when Anisocoria is greater in dim light than in bright light
the smaller pupil cannot dilate properly caused by an interruption of the sympathetic nerve supply
Effect on pupil when Anisocoria is greater in bright light than in dim light
the larger pupil cannot constrict properly
Causes of Anisocoria where it is greater in bright light than in dim (4)
- blunt trauma
- open-angle glaucoma
- impaired parasympathetic nerve supply to the iris
- occulomotor nerve paralysis
Pupil is large, regular and usually unilateral
Tonic Pupil (Adie’s Pupil)
The dilated pupil is fixed to light and near effort
CN III Paralysis
Horner’s Syndrome symptoms (6)
S ympathetic A nhidrosis M iosis P tosis L oss of Ciliospinal Reflex E nopthalmos