A microscope is a device that uses a variable-width beam of light emitted from a small slit to illuminate the cornea, iris, anterior chamber, lens, and vitreous body, and then magnifies and examines them under a microscope. It is an essential instrument for diagnosing the location of corneal opacity, the presence or absence of iritis, and the degree and location of cataracts. Additional devices include the Fluby lens (used for fundus examinations) and applanation tonometer. There are also specialized devices for measuring the thickness of the cornea and the depth of the anterior chamber. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
細隙から出た幅の変る光束で角膜,虹彩,前眼房,水晶体および硝子体を照し,これを顕微鏡で拡大して観察する装置。角膜混濁の部位,虹彩炎の有無,白内障の程度と位置の診断などに欠かせない器械である。付属装置としてフルビーレンズ (眼底検査に用いる) ,圧平眼圧計などがある。ほかに,角膜の厚さや前眼房の深さを測定する特殊装置もある。
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