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PDX : Eye
Terms in this set (65)
True / False - The eye is the only organ viewable without operating.
How many cranial nerves are involved with the eye? (Can you list them?)
6. CN2, 3, 4, 5, 6, 7
Where does the autonomic innervation of the eye come from? (Sympathetic and Parasympathetic)
Sym - T1/T2 ; Para - CN3
Characterized by the eyelid hanging down, sometimes covering part of the pupil.
Constricted pupil when compared with the opposite eye
Lack of sweating, skin may also be slightly red.
This syndrome results from sympathetic nerve interruption to the head.
What is one cause talked about in class for Horner's Syndrome?
Apical Lung Tumor
Also known as iritis or iridocyclitis (inflammation of iris/ciliary body)
Eye pain that warrants referall to ophthalmologist
Also known as Choroidits. Exhibits eye pain, sensitivity to light, and "floaters"
True or False : A corneal abrasion usually only presents with pain due to minimal blood supply.
True (need dye to see)
Abnormal elevation of pressure within the eye, leads to loss of peripheral vision.
Known as aversion to light, often caused by migraines or systemic infections.
Known as an eyestrain headache caused by extraocular muscle weakness/imbalance
Also known as nearsightedness, the eye is long.
Also known as farsightedness, the eye is "short"
Caused by variations of corneal curvature, all portions of the visual field are not in focus at one time.
Characterized by decreased elasticity of the lens due to aging, inability to focus on fine print or see in dim light.
Characterized by partial loss of vision, a field or island of loss (blind spot). May be unnoticed by patient.
What type of visual loss is caused by the following visual field defects? A. Strokes B. Tumors C. Glaucoma
A. Strokes cause permanent loss
B. Tumors may cause progressive loss
C. Glaucoma may cause progressive loss or tunnel vision
Characterized by flashes of bright light followed by a loss of vision.
General term for muscle imbalance of the eye which may prevent them from aligning.
Double vision due to loss of eye muscle balance or function.
Name two conditions that may present with diplopia
1. Diabetic Neuropath
2. Myasthenia gravis
3. Thyroid disorders
Any opacity between cornea and retina, red reflection of the retina will be inturrupted.
Produce progressive blurred vision, lights at night can be a special problem.
May be indicative of retinal traction, however are usually harmless
Cloudy aqueous humor produced by glaucoma
May signify a deficiency in vitamin A
Also known as pink eye, usually painless and self limiting.
Patient presents with a very red eye after a hard sneeze and is frightened by the appearance. What is the likely diagnosis?
Small punctate hemorrhages seen in palpebral conjunctiva, classically presented by bacterial endocarditis.
Dilation of the scleral vessels and tenderness of the eye.
Patient presents with puffy eyelids and a swollen ankle. What serious condition could the patient be presenting?
Renal disease / protein loss
True or False : Periorbital Edema is common in hyperthyroidism?
False - hypothyroidism
Abnormal protrusion of the eye from the orbit
Patient presents with a loss of the lateral third of her eyebrow. What does this suggest?
These are the medial and lateral angles of the eye formed by the junction of the eyelids.
Layer of extra skin over medial angle of eye, more apparent in Asians and down's syndrome
Eyes are further apart than normal, what is this called and what is it indicative of?
Ocular hypertelorism, indicative of fetal alcohol syndrome
Abnormal elevation of the eyelid, caused by hyperthyroidism.
Secretions of the lacrimal gland drain into what?
Yellow sclera is indicative of?
Jaundice / bilirubin accumulation
What does the acronym PERRLA stand for?
Pupils, Equal, Round, React to, Light, Accomodation
True or False : If shining a light in the left eye, the right and left eye should constrict.
Patient is instructed to look left, and the left eye did not abduct. What does this indicate?
Patient presents with a right eye deviated laterally, the pupil is dilated, and there is ptosis of the lid. What does this indicate?
Obstruction of the Canal of Schlemm leads to what?
When the pupil dialates, the contracted Iris may block the canal of Schlemm. This is known as what?
Narrow Angle Glaucoma
Degenerative changes of the canal of Schlemm can cause what?
Open Angle Glaucoma
What is Tonometry?
Measuring of intraocular pressure
An infection of one of the glands along the eyelashes, also known as a "sty"
Cyst or fibrotic reaction in Meibomian gland, normally a painless lump
Peripheral milk white corneal deposits in the elderly. If under 40 may signify hyperlipoproteinemia.
Lipid deposition around the eye, indicative of high cholesterol or trilycerides.
An outward turned eyelash
An inward turned eyelash
Calcium salt deposition band in long standing hypercalcemia.
Golden brown deposits of copper in cornea, what is this called and what is it indicative of?
Kayser-Fleischer Ring, indicative of Wilson's disease
Tendency of the eye to deviate from normal position
Eye is turned nasally
Eye is turned laterally
Patient presents with a pupil that does not react to light but does to accommodation. What is this called and what does it indicate?
Argyll Robertson Pupil, indicates CNS syphilis
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