理想的角膜知觉计应是不直接接触角膜。Jalavisto等(1951)根据气流刺激角膜时产生凉爽或风吹感这一现象,设计了气流式角膜知觉计。Lele和Weddell(1956)用冷、暖气流刺激角膜,调查角膜的温度觉。但这些都没超出生理学研究的范畴。作者应用气流刺激原理设计研制出简便的非接触性角膜知觉计,并将其应用于临床。 (1)制 The ideal keratometer should not be in direct contact with the cornea. Jalavisto et al. (1951) designed a flow keratometer based on the phenomenon of cool or blown air when the air flow stimulated the cornea. Lele and Weddell (1956) stimulated the cornea with cold and warm airflow to investigate the corneal temperature. But these are beyond the scope of physiological research. The author applied the principle of airflow stimulation to design and develop a simple non-contact corneal perceptual meter, and apply it to clinic. (1) system