PROBLEM TO BE SOLVED: To provide a measurement device for an eye surface friction coefficient/an eyelid friction coefficient capable of properly measuring an eye surface friction coefficient/an eyelid friction coefficient, and an evaluation method for an eye surface friction coefficient/an eyelid friction coefficient.SOLUTION: The measurement device for an eye surface friction coefficient/an eyelid friction coefficient is a device for estimating a friction coefficient μ of an eye surface and or of/an eyelid and comprises: a measurement unit 20 comprising a contact unit 22 having a contactor 23 being brought into contact with the eye surface or the eyelid, and a biasing mechanism 25 for biasing the contact unit 22 toward the tip of the contactor 23； a movement mechanism 10 for moving the measurement unit 20 along the direction intersecting with the direction in which the biasing mechanism 25 biases the contactor 23； and a friction coefficient estimation unit 30 for estimating the friction coefficient μ of the eye surface and/or the eyelid. The movement mechanism 10 comprises an encoder 16 for measuring a movement speed V of the measurement unit 20. The friction coefficient estimation unit 30 has a function for estimating the friction coefficient μ of the eye surface and/or the eyelid based on the biasing force generated by a spring 26 and the movement speed V of the measurement unit 20 detected by the encoder 16.SELECTED DRAWING: Figure 2【課題】眼表面の摩擦係数を適切に測定できる眼表面・眼瞼摩擦係数測定装置および眼表面・眼瞼摩擦係数評価方法を提供する。【解決手段】眼表面および／または眼瞼の摩擦係数μを推定する装置であって、眼表面または眼瞼に接触させる接触子２３を有する接触部２２と、接触部２２を接触子２３の先端に向かって付勢する付勢機構２５と、を備えた測定部２０と、測定部２０を、付勢機構２５が接触子２３を付勢する方向と交差する方向に沿って移動させる移動機構１０と、眼表面および／または眼瞼の摩擦係数μを推定する摩擦係数推定部３０と、を備えており、移動機構１０が、測定部２０の移動速度Ｖを測定するエンコーダ１６を備えており、摩擦係数推定部３０は、バネ２６が発生する付勢力と、エンコーダ１６が検出した測定部２０の移動速度Ｖと、に基づいて、眼表面および／または眼瞼の摩擦係数μを推定する機能を有している。【選択図】図２
