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CC March 2016 Pinguecula and Pterygium

rename
echoecho's version from 2016-05-16 17:30

Section 1

Question Answer
Define pinguecula?a raised, yellowish lesion of the interpalpebral bulbar conjunctiva that does NOT encroach upon the cornea
Pingueculae are more common the _____ side of theeye and are more commonly seen with patients with what?1) nasal 2) greater ultraviolet exposure
Pinguecula may cause what?1) redness 2) irritation or dry eyes
Why do pinguecula rarely affect the patient/s vision?because they do not affect the cornea
For symptosm of irritation, what is recommended for a pinguecula?artificial tears lubrication
When is short-term use of topical steroids or topical anti-inflammatory drugs appropriately needed for a pinguecula?if it is acutely inflamed (pingueculitis)
Surgical therapy is reserved in pinguecula for what type of patients? 1) cosmesis 2) chronic irritation 3) interference with contact lens use
Is treatment with laser therapy produces sumilar results to traditional surgical excision?yes
Define pterygium?an elevated, superficial growth that forms over the perilimbal conjunctiva and extends over the corneal surface.
What is the caue of pterygium?it is caused by degeneration of collagen fibers and fibrovascular prolifieration with a covering of epithelium
Pterygia most commonly occurs in the _____ aspect of the eye, where the _____ exposure is the greatest. The incidence is higher in the ______ latittudes?nasal; ultraviolet; lower
Pterygium are more common in what gender? More common what age group?men; 20-40 y.o.
Pterygium common presenting symptoms include?eye redness, itching, irritation
Pterygia that go over the pupil will cause what?visual blurring
Smaller pterygia can affect vision by inducing what? astigmatism
Observation can take place for a pterygium if what is present?1) symptoms are mild 2) vision is not affected
Surgical treatment of a pterygium is reserved for what patients?1) with significant symptoms (visual loss or the threat of visual loss) OR 2) irritative symptoms nonresponsive to medical therapy
*** The recurrence rate for pterygium after surgery is significant; the use of adjuvant therapy with what has been shown to reduce this outcome?mitomycin C
What other interventions can be used to minimize the recurrence of a pterygium?1) Bevacizumab drops 2) conjunctival transplantation
What cancer is an exceedinly rare cancer that presents as ofcal unilateral redness or chronic diffuse conjunctivitis presenting in the 7th decade of life or later?Squamous cell carcinoma of the conjunctiva
What cancer is thought to occur with an even lower frequency than squamous cell carcinoma of the conjunctiva, presenting with lesions that arise at the limbus and are slow-growing erythematous papules?Basal cell carcinoma of the conjunctiva
Define Xanthomas?1) fatty depositis of the skin that have a waxy appearance 2) are associated with dyslipidemia 3) usually do not occur on the sclera
*** SUMMARY = What is a pinguecula?a raised, yellowish lesion of the interpalpebral bulbar conjunctiva that does not encroach upon the cornea
*** SUMMARY = What is a Pterygium?an elevated superficial growth that forms over the perilimbal conjunctiva and extends over the corneal surface
*** SUMMARY = Pterygia that go over the pupil will cause what? Smaller pterygia can affect vision by inducing what?visual blurring; astigmatism
memorize

Section 2