Strab sx techniques
Strab sx complications
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(ง’̀-‘́)ง
100
The type of conjunctival incision that Recko uses.
+100: why is this incision not as good for adults?
What is Fornix incision?
What is tearing of thinner conjunctiva?
100
The oculocardiac reflex is most easily elicited by manipulation of this muscle.
What is medial rectus?
100
Describe the two main types of telescopes in terms of the eyepiece and objective lens powers.
What is Galilean: high minus eye, low plus obj.; Keplerian: high plus eye, low plus obj
100
What is Gardner syndrome?
100
The term for Horner syndrome with CN VI palsy that localizes to cavernous sinus (-800 for incorrect).
What is Parkinson sign
200
Potential cosmetic effect of resections or recessions of the superior or inferior rectus muscles.
What are changes in palpebral fissure height?
200
The most likely result if you perforate the sclera in strabismus surgery.
What is: nothing (chorioretinal scar without sequelae).
200
A sphericocylindrical lens with a spherical equivalent of zero.
What is a Jackson Cross Cylinder?
200
Hypertensive patient
What are Elschnig spots
200
Name each type of nystagmus +200 . The waveform is named for which phase of the nystagmus? +200
What is: congenital, vestibular, latent (or gaze-evoked)
Slow phase
300
A description of the hemi-hangback technique for recessions.
What is: make scleral pass part way back, they hang muscle back to complete full dose of recession.
300
A complication you may see if operating unilaterally on 2+ rectus muscles (+300), and the first sign of it (+300).
What is anterior segment ischemia, AC cell/flare
300
Equation for power of a mirror.
What is: P = -2/r
300
The gold standard for diagnosing true ocular albinism.
What is VEP?
A single eye stimulation will result in an asymmetric occipital response because there is a greater number of decussating fibers
300
What +300, why +300
What is Harlequin syndrome (a/w Horner), due to denervation supersensitivity to circulating adrenaline
400
A description of the Harada-Ito procedure (indication, and technique).
What is: torsional diplopia from superior oblique palsy, split tendon fibers and transpose anterior fibers anteriorly and laterally.
400
The definition of adherence syndrome (+400), and the muscle which, if operated on, may be most likely to lead to it (+400).
What is motility restriction caused by adhesions from prolapsed orbital fat, inferior oblique
400
A definition of diffraction.
What is: the tendency of light to bend around corners.
400
Child with seesaw nystagmus, renal failure, and molar tooth sign on MRI.
What is Joubert syndrome?
400
A cause of Horner syndrome in middle-aged men with daily unilateral headaches that are not characteristic of cluster headaches accompanied by ipsilateral sensory and/or motor abnormalities in the distribution of the trigeminal nerve fibers.
What is Raeder paratrigeminal syndrome?
500
A way to augment the effect of rectus muscle transposition surgeries (+500), and the eponymous name for this modification (+500).
What is: posterior fixation sutures, Foster modification
500
The term for intraoperative dehiscence of a muscle (+500), and the most common muscle to be affected (+500).
What is: PITS (Pulled-In-Two-Syndrome), inferior rectus
500
What is the Munnerlyn formula and what is it used for?
What is:
Ablation depth = (myopia D x optical zone^2)/3
500
What is Jalili syndrome?
Amelogenesis imperfecta (defective dental enamel production) plus a cone-rod dystrophy.
500
Location of the only lesion that can cause an RAPD without vision or visual field loss.
What is Brachium of the superior colliculus?