Games
Study tools that make optician knowledge stick — across all three certification tracks. The ABO Basic Daily Challenge is free for everyone.
ABO BasicABO AdvancedNCLE
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Free dailyDaily Challenge
Five fresh questions every day. Same set for everyone — build your streak.
Today's challenge🎴
Basic planFlashcards
Tap to flip, rate how well you knew each card. Classic active-recall study.
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Basic planMemory Match
Match optical terms to their definitions. Build vocabulary while you play.
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Basic planSpeed Round
60 seconds, streak multipliers, infinite questions. How high can you score?
Beat the clock🧮
Basic planCalc Drills
Type the answer — transposition, Prentice's Rule, vertex, and decentration math.
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