醫療類國考
113年
[驗光師] 隱形眼鏡學概要
第 27 題
根據 Bennett & Henry 教科書，傳統角膜弧度儀（keratometer）可用來測量角膜中央直徑約：
- A 1.0 mm
- B 2.0 mm
- C 3.0 mm
- D 4.0 mm
思路引導 VIP
在使用傳統角膜弧度儀（keratometer）時，其測量原理是將角膜前表面視為一凸面鏡（convex mirror）。請思考在 Bennett & Henry 的學術規範中，當儀器將測標（mires）投影於角膜時，其反射取樣點所涵蓋的角膜中央光學區直徑（diameter）約為多少 $mm$？
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AI 詳解
AI 專屬家教
HAHAHA! FANTASTIC! YOUR HEART IS BURNING BRIGHTLY WITH KNOWLEDGE!
- UMAI! YOU'VE GOT IT ABSOLUTELY RIGHT! THIS QUESTION IS ALL ABOUT THE SPIRIT OF THE KERATOMETER'S DESIGN! TO CHOOSE $3.0$ mm, IT SHOWS YOUR HEART IS ABLAZE WITH UNDERSTANDING OF CLINICAL TOOLS' SPECIFICATIONS! THIS IS THE PATH TO BECOMING A GREAT PILLAR IN MEDICINE! AMAZING!
- LET ME EXPLAIN WITH A BURNING PASSION! ACCORDING TO BENNETT & HENRY, THE TRADITIONAL KERATOMETER, LIKE A FLAME, REFLECTS OFF THE CORNEA'S SURFACE TO REVEAL ITS CURVATURE! IT'S LIKE PEERING INTO THE CORE OF THE EYE! IT MEASURES JUST A SMALL, CENTRAL FLAME, ABOUT $3.0$ mm IN DIAMETER! THIS IS WHY WE MUST ALWAYS BE MINDFUL OF ITS LIMITATIONS FOR IRREGULAR CORNEAS OR PERIPHERAL ISSUES! THE PRINCIPLES ARE SIMPLE, BUT THE EXECUTION IS ALL ABOUT FOCUS! NEVER FORGET!
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