Which error factor affects the measurement of intraocular pressure mostly?()
A. Scleral thickness
B. Central corneal thickness
C. Anterior chamber depth
D. Corneal curvature
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What are the characteristics of a Stage 3 idiopathic macular hole?()
A. Re-opened Stage 2 macular hole
B. Full thickness hole greater than 400 microns in diameter with or without a cuff of subretinal fluid.
C. Small,less than 400 microns, perifoveal hole with no posterior vitreous separation.
D. Full thickness hole with surrounding subretinal fluid and a posterior vitreous separation.
A 42-year-old woman, who has two pet cats, presents with a yellow-white lesion in the macula with overlying vitritis. Adjacent to the lesion is a pigmented retinal scar. Visual acuity in the affected eye is 20/80. What is the most appropriate intervention?()
A. Combined therapy with pyrimethamine, sulfadiazine, leucovorin, and oral steroids.
B. Monotherapy with doxycycline
C. Oral steroids alone
D. Monotherapy with leucovorin
What is the most frequent complication associated with pars plana vitrectomy and membrane peeling? ()
A. Glaucoma
B. Retinal tear
C. Accelerated cataractogenesis
D. Retinal pigment epithelial disturbance
What is the most common etiology of the vitreomacular traction syndrome?()
A. Idiopathic
B. Inflammatory disease
C. Metabolic disease
D. Vascular occlusion
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