30 Questions
What is the primary location of punctate epitheliopathy?
Epithelium
What is the name of the condition characterized by a triangular sheet of fibrovascular tissue that encroaches on the cornea?
Pterygium
What is the name of the condition characterized by thinning and ectasia of the cornea, often associated with Down syndrome and Marfan's syndrome?
Keratoconus
What is the name of the deposit that commonly occurs on the bulbar conjunctiva?
Pinguecula
What is the term for breaks or folds in Descemet's membrane?
Endothelial problems
What is the name of the condition characterized by degeneration of collagen fibers in the conjunctival stroma?
Pinguecula
What is the characteristic shape of the apical protrusion in keratoconus?
Nipple shape
What is the primary reason for advising patients with keratoconus to avoid eye rubbing?
To prevent further corneal thinning
What is the name of the sign characterized by bulging of the lower lid on downgaze?
Munson's sign
What is the result of acute hydrops in keratoconus?
Sudden drop in vision
What is the purpose of RGP contact lenses in treating keratoconus?
To correct irregular astigmatism
What is the characteristic finding on slit lamp examination in keratoconus?
Fine deep stromal striae
What is the primary cause of lipid keratopathy in vascularized corneae?
Abnormal vessels leaking lipid into the stroma
What type of dystrophy is characterized by 'Map Dot Fingerprint' or 'epithelial basement membrane' dystrophy?
Cogan Microcystic dystrophy
What is the percentage of patients with Cogan Microcystic dystrophy that will develop recurrent corneal epithelial erosion syndrome?
10%
Which type of dystrophy is characterized by fine ring-shaped or polygonal opacities producing a 'honeycomb' or 'fishnet' appearance in the epithelium?
Reis-Bucklers dystrophy
What is the primary treatment for band keratopathy?
Chelation therapy
Which type of dystrophy tends to present with recurrent epithelial erosions and worsening vision from subsequent scarring?
Dystrophies involving the epithelium and anterior stroma
What is the typical age of onset for patients with Reis-Bucklers dystrophy?
First decade of life
What is the primary component of the lesions in Schnyder dystrophy?
Fat and cholesterol
What is the characteristic feature of band keratopathy?
Nasal and temporal peripheral calcification
What is the treatment for patients with Schnyder dystrophy who experience reduced vision?
Excimer laser keratectomy
What is the primary characteristic of corneal dystrophies?
Mostly inherited and bilateral
What is the inheritance pattern of Meesman dystrophy?
Autosomal dominant
What should be checked before determining whether it is safe to remove an ocular foreign body embedded in the cornea?
Depth of the foreign body
What is the recommended method for removing a superficial metallic foreign body from the cornea?
Using the tip of a hyperdermic needle with topical anaesthetic
Which of the following is a sign of corneal abrasion?
Corneal epithelial defect, conjunctival hyperaemia, watering, lid swelling, and reduced vision
What should be considered for pain relief in a patient with corneal abrasion?
Topical cycloplegia
What should be given to aid wound healing and provide protection in a patient with an ocular foreign body?
Topical antibiotics in ointment form
What should be done in case of doubt regarding the removal of an ocular foreign body?
Refer the patient to a specialist
This quiz covers the various clinical signs of corneal problems, including irregular astigmatism, punctate epitheliopathy, and endothelial problems. It also touches on the importance of distinguishing between acute and chronic signs. Test your knowledge of corneal disease processes and their symptoms.
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