OCANZ Written Exam Test Questions And Answers Verified 100% Correct

OCANZ Written Exam Test Questions And Answers Verified 100% Correct Describe Horners - ANSWER Constricted pupil due to sympathetic disorder Also may have ptosis Causes could be lung tumor, carotid artery dissection, or even a congenital malformation Associated with decreased sweating on the effected side Constricted pupil Will not dilate to cocaine A px comes in to the store, he got cement in his eye 10 minutes ago. Outline your work up of this patient On examination you decide he needs immediate referral. What details would you include in the referral letter? - ANSWER NaFl examination of the cornea to determine extent and depth of alkaline injury Palpebral fissure checks Initial PH IOP Details in referral letter should include - chemical, duration since initial incident, initial PH, IOP, however immediate emergency attention is required and irrigation. What are potential treatments for diabetic retinopathy? - ANSWER laser photocoagulation anti vegf vitrectomy How quickly would you refer a patient with proliferative diabetic retinopathy (PDR) or diabetic macula oedema (DMO)? - ANSWER Urgent to Ophthalmologist (within 4 weeks) unless under review Describe the management of GPC in a silicone hydrogel contact lens wearer. - ANSWER improve lens hygeine Increase lens replacement frequency DD if possible Reduce modulus of lens material (Swap to hydrogel lens, be aware more difficult to handle) Manage lid margin disease If sever - topical Mast cell stabalisers 28 y/o overweight female has 6/6 vision and IOPs are normal. On examination, she has bilaterally woollen optic discs that are hyperaemic and with flame haems. a) What optometric tests would you perform b) What non-optometric tests would you perform c) What is your primary concern? - ANSWER Visual fields Pupils Colour Vision Motility Stereo Disc images Primary concern Papilloedema due to raised intercranial pressure, caused by sub arachnoid haemorrhage or space occupying legion, refer emergency HES tests - Urgent neuro imaging (MRI CT) and CBC count, blood sugar, angiotensin- converting enzyme, erythrocyte sedimentation rate What is the typical retina feature of RP? - ANSWER Bone spicule What visual field loss would you expect in RP? - ANSWER Tunnel vision What genetic factors and other factors affect this condition? - ANSWER May be sporadic or progressive, autosomal dominant -20%, recessive -13%, or X-linked 8% What formula for back vertex correction? - ANSWER Fc=F/(1-xF) Fc is the power corrected for vertex distance, F is the original lens power x is the change in vertex distance in meters. How does this change when you are working out i there is cylindrical correction? - ANSWER Carry out Fc=F/(1-xF) for each meridian and than convert into notation required (+/- cyl) What is the first rule of thumb relating to changing the BOZR of a RGP? - ANSWER Change BOZR by 0.1mm then change power of 0.50D to keep NaFL pattern? What is the rule of thumb when increasing the TD of an RGP to keep same NaFl pattern? - ANSWER Increase TD by 0.1mm then flatten BOZR by 0.05mm Px attends asking for an appointment complaining of flashes & floaters started yesterday when do you see her? A) appt today b) tomorrow c) within the next week d) within the next 4 weeks - ANSWER A) appt today A mum wants to collect her 20 year old daughters rx what do you do? A) give it b) give it and then inform daughter c) request consent from daughter d) refuse - ANSWER c) request consent from daughter How often should you calibrate Goldman? A) daily b) weekly c) monthly d) yearly - ANSWER c) monthly (if under 2 years old, otherwise twice-yearly) List what is used to diagnose optic neuritis? - ANSWER acute unilateral decrease in vision, eye pain-especially with movement RAPD decreased color vision/contrast/brightness sense documentation of a visual field defec (young, female 3:2, MS 75%) Sudden onset eso, what do you suspect? out of duanes and browns? - ANSWER Duanes Px c/o waking up with soreness - not pain - and red eyes for the last two days with associated mucopurulent discharge. All tests are normal but the eye does look red and sore. What is your diagnosis? A) Allergic conjunctivitis b) chlamydial conjunctivitis c) viral conjunctivitis d) bacterial conjunctivitis - ANSWER d) bacterial conjunctivitis A CL multifocal rep asks for the contact details of all your px over 45 to tell them about a new CL available on the market. What do you do? A) give it to him b) refuse C) give address but not names - ANSWER b) Refuse 7) which of the following breaks patient confidentiality? A) showing px the photos of their eyes B) calling their name in the waiting area C) leaving the px with their notes alone in the room - ANSWER D) showing px records to another OO outside of the practice