…Currently used tonometers measure intraocular pressure by applying a certain force to the eyeball and measuring the degree of deformation (indentation tonometer) or the force required to cause a certain deformation (applanation tonometer). Usually, in clinical practice, there are indentation tonometers, such as the Schiøtz tonometer, and applanation tonometers, such as the Goldmann tonometer. The former includes errors due to the degree of extensibility of the eyeball wall (eyeball wall stiffness), but the latter is not affected by this and can obtain more accurate intraocular pressure values. … *Some of the terminology that mentions "Goldmann tonometer" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…現在用いられている眼圧計では,眼球に一定の力を加えて生ずる変形の程度(圧入眼圧計),あるいは一定の変形をおこすのに必要な力(圧平眼圧計)を測定することにより眼圧を測定する。通常,臨床的には,シエッツ眼圧計Schiøtz tonometerを代表とする圧入眼圧計とゴールドマン眼圧計Goldmann tonometerを代表とする圧平眼圧計がある。前者では眼球壁の伸展性(眼球壁硬性)の大小による誤差を含むが,後者では,その影響をうけず,より精度の高い眼圧値が得られる。… ※「Goldmann tonometer」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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