角膜反射（Corneal reflex）又称眨眼反射（blink reflex），是指刺激角膜（如通过触摸或有异物）或明亮的光线引起角膜产生的反射。刺激引起被刺激眼睛产生和刺激有直接、因果联系的不自主眨眼（称为直接角膜反射，同时和刺激无关的另一只眼睛也会同时产生反应，称为间接角膜反射）。角膜反射的速率为0.1秒。人类进化出这种反射的目的是为了保护异物和明亮的灯光对眼睛产生不良影响。 角膜反射也可以发生于声音大于40-60分贝时。

角膜反射介导的机理：

角膜反射检查是常用的神经系统检查。正常人直接和间接角膜反射均存在。直接和间接角膜反射同时消失提示患者可能有三叉神经（眼支）病变；直接反射消失，间接反射存在，提示患者患侧面神经瘫痪；角膜反射完全消失可见于深度昏迷患者。

The corneal reflex, also known as the blink reflex, is an involuntary blinking of the eyelids elicited by stimulation of the cornea (such as by touching or by a foreign body), though could result from any peripheral stimulus. Stimulation should elicit both a direct and consensual response (response of the opposite eye). The reflex occurs at a rapid rate of 0.1 seconds. The purpose of this reflex is to protect the eyes from foreign bodies and bright lights (the latter known as the optical reflex). The blink reflex also occurs when sounds greater than 40-60 dB are made.