ABO Ophthalmology Practice Questions - American Board Of Ophthalmology Written Qualifying Examination (WQE) Exam

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During phacoemulsification, the surgeon notes a sudden deepening of the anterior chamber, pupil snap-back, and loss of followability. Which complication is most likely, and what is the correct immediate step?

Iris prolapse — lower infusion bottle height only Posterior capsule rupture — stop ultrasound and raise the bottle Posterior capsule rupture — lower the bottle, inject dispersive OVD, then withdraw the phaco tip under viscoelastic Zonular dialysis — increase vacuum to remove remaining cortex quickly

Correct Answer:

Posterior capsule rupture — lower the bottle, inject dispersive OVD, then withdraw the phaco tip under viscoelastic

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