FREE ABO Cornea and External Disease Questions and Answers

Question 1

A 25-year-old patient with progressive myopic astigmatism is examined. On downgaze, the lower eyelid is pushed forward into a 'V' shape by the conical cornea. What is this clinical sign called?

Accepted Answer

Munson's sign

Answer

Vogt's striae

Answer

Fleischer's ring

Answer

Rizzuti's sign

Question 2

A patient presents with a red, painful eye and foreign body sensation. Slit-lamp examination after fluorescein staining reveals a linear, branching epithelial lesion. This finding is pathognomonic for which condition?

Accepted Answer

Herpes simplex keratitis

Answer

Acanthamoeba keratitis

Answer

Fungal keratitis

Answer

Corneal abrasion

Question 3

A 60-year-old female complains of blurry vision that is worse in the morning. Slit-lamp examination reveals corneal guttae and stromal edema. The primary pathology in this condition involves which corneal layer?

Accepted Answer

Endothelium

Answer

Epithelium

Answer

Bowman's layer

Answer

Stroma

Question 4

A 22-year-old who sleeps in their soft contact lenses presents with severe eye pain, discharge, and a corneal infiltrate with an overlying epithelial defect. Which organism is most notoriously associated with this clinical scenario?

Accepted Answer

Pseudomonas aeruginosa

Answer

Staphylococcus aureus

Answer

Streptococcus pneumoniae

Answer

Moraxella catarrhalis

Question 5

A patient with Fuchs' dystrophy and significant corneal edema but a clear stroma is a candidate for a corneal transplant. Which procedure would be most appropriate to selectively replace the diseased tissue?

Accepted Answer

Descemet's Membrane Endothelial Keratoplasty (DMEK)

Answer

Penetrating Keratoplasty (PKP)

Answer

Deep Anterior Lamellar Keratoplasty (DALK)

Answer

Phototherapeutic Keratectomy (PTK)

Question 6

A patient with dry eye disease has rapid tear break-up time but normal Schirmer's test results. Examination reveals inspissated meibomian glands. This presentation is most consistent with which type of dry eye?

Accepted Answer

Evaporative dry eye

Answer

Aqueous-deficient dry eye

Answer

Neurotrophic keratopathy

Answer

Allergic conjunctivitis

Question 7

A 50-year-old outdoor worker presents with a fleshy, triangular growth extending from the nasal conjunctiva onto the cornea. What is the most likely diagnosis?

Accepted Answer

Pterygium

Answer

Pinguecula

Answer

Conjunctival nevus

Answer

Squamous cell carcinoma

A 25-year-old patient with progressive myopic astigmatism is examined.On downgaze, the lower eyelid is pushed forward into a 'V' shape by the conical cornea.What is this clinical sign called?

A 25-year-old patient with progressive myopic astigmatism is examined.
On downgaze, the lower eyelid is pushed forward into a 'V' shape by the conical cornea.
What is this clinical sign called?