Title :
A miniaturized applanation tonometer
Author :
Ma, Jian-Guo ; Xu, De-Zhang
Author_Institution :
Anhui Inst. of Mech. & Electr. Eng., Wuhu, China
Abstract :
A miniaturized hand-held applanation tonometer is introduced, in which a special cone prism is employed to be an applanation probe to flatten the eye vertically. The self-weight of the probe is just the applanation force, and the applanation area of the ocular cornea is monitored by the optoelectronic signal. The preliminary test demonstrates its good clinical acceptance and its accuracy meeting clinical needs.
Keywords :
biomedical equipment; biomedical measurement; eye; portable instruments; pressure measurement; automatic direct-reading instrument; clinical acceptance; hand-held applanation tonometer; intraocular pressure measurement; miniaturized applanation tonometer; ocular cornea; optoelectronic signal; portable tonometer; special cone prism; vertical eye flattening; Area measurement; Biomedical optical imaging; Cornea; Force measurement; Geometrical optics; Instruments; Optical modulation; Optical sensors; Probes; Time measurement; Analog-Digital Conversion; Calibration; Cornea; Data Display; Diagnosis, Computer-Assisted; Equipment Design; Humans; Intraocular Pressure; Models, Theoretical; Optics; Regression Analysis; Reproducibility of Results; Tonometry, Ocular;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
