OCANZ Written exam 100% questions and answers

OCANZ Written exam 100% questions and answers Px holds a x4 mag telescope and VA reduces from 6/24 to 6/60. Probable diagnosis? RP, diabetic retinopathy, malingerer, one other - ANSWERS diabetic retinopathy Amioderone causes what? - ANSWERS Vortex keratopathy RE Aides pupil px given 0.12% pilocarpine. What happens? RE constricts and LE doesn't, LE constricts and RE doesn't, , LE constricts more than RE. - ANSWERS RE constricts more than LE With which disease is a Kayser-Fleischer ring seen? - ANSWERS Wilson's disease What vitamin taken in EXCESS causes hair loss (madarosis), headaches and blurred vision. Vitamin A, B, C or E - ANSWERS Vit A What medication causes retinal haemorrhages? Quinines and 3 others. - ANSWERS What topical medication needs to be shaken before use? Topical steroids, antihistamines and 2 others - ANSWERS Topical steroids Why do Topical steroids need to be shaken? - ANSWERS liquid suspension Which of these diseases are more common in men? Fuch's, macular hole, terriens marginal degeneration and one other. - ANSWERS terriens marginal degeneration Which antihistamine causes immediate relief? - ANSWERS Ketotifen Patching schedule for 4 yr old amblyope.. - ANSWERS How to calibrate a keratometer.. using a steel ball with known radius, RGP with known radius, something to do with a mirror and rular and 2 formulas? - ANSWERS X2 questions on accessing patients records.. need patient consent. - ANSWERS When does UV change to visible light? - ANSWERS 400nm Wavelength of UVB? - ANSWERS 280 - 315nm Wavelength of UVA? - ANSWERS 315-380 When is corneal debridement not suitable? Phylctenulosis, filament keratitis, herpes keratitis and 1 other - ANSWERS Phylctenulosis What is Phylctenulosis? - ANSWERS phlyctenulosis is a corneal sequelae of chronic Staphylococcal blepharitis, a disorder that often presents in the clinic as chronic conjunctivitis or keratitis characterized by punctate epithelial keratopathy, and/or marginal corneal infiltrates -4.00DS and -7.00DS spec rx.. differential prism with a +1.50DS - ANSWERS What causes ring scotoma? RP, high minus, high plus, one other - ANSWERS high plus, How often do you need to calibrate goldmann? - ANSWERS Monthly Describe a Keplerian Telescope (astronomical) - ANSWERS prismatic, 2 convex (plus) lenses, the objective lens being of smaller diopter power than the ocular. distance between the lenses is the sum of their focal lengths image real and inverted (hence prism) longer and heavier than Gallileon Describe a Galilean Telescope - ANSWERS simple system consisting of 2 lenses: Objective lens: convex (plus) lens, closest to the object