Problem to be solved: to provide an eyepiece structure of an operating microscope in which an astigmatism correcting lens can be replaced easily according to an observer, and an astigmatic correction lens can be turned in the correct direction when replaced.The holder 12 having the astigmatism correcting lens 13 for individual use can be inserted into and removed from the pocket portion 16 of the eye cup 3, so that the observer can only put the holder 12 for personal use into the pocket portion 16 when the operation microscope 1 is used. If another observer uses an operating microscope, it may be replaced with another holder dedicated to herself.Diagram【課題】観察者に応じて容易に乱視矯正レンズを交換でき且つ交換した際に乱視矯正レンズを正しい向きにすることができる手術顕微鏡の接眼部構造を提供する。【解決手段】個人専用の乱視矯正レンズ13を有するホルダー12をアイカップ3のポケット部16内に出し入れ自在なため、観察者は個人専用のホルダー12を手術顕微鏡1を使用する際にポケット部16に入れるだけで済む。別の観察者が手術顕微鏡を使用する場合は、自分専用の別のホルダーに交換すれば良い。【選択図】図1
