The Correlation Analysis Between the Non-contact Intraocular Pressure and Diopter

This paper discusses the relevance of the non-contact intraocular pressure (non-contact tonometer, NCT) and the diopter value measurements of refractive errors. Methods for the measurement of both eyes IOP of 192 patients, and binocular eye refraction as well, then the measured data were statistically analyzed. Research on age, gender, which eye, refractive power and refractive status (i.e. myopia, face, and hyperopia) affects the values of non-contact tonometer measurements. The results of refractive measurements were as follows: myopia, emmetropia and hyperopia accounted as 47.92, 15.62 and 36.46 % respectively. IOP measurement of all ages: age of 10 years old group (17.74 ± 3.34) mmHg, 10–20 years old group (17.85 ± 3.34) mmHg. According to gender, the male gender (17.94 ± 3.12) mmHg, and female (17.92 ± 3.23) mmHg. Group of the different eye, right eyes IOP was (18.05 ± 3.12) mmHg, left eyes IOP was (17.88 ± 3.17) mmHg. According to refractive errors: myopia group IOP was (17.83 ± 2.95) mmHg, hyperopia group IOP was (18.12 ± 2.94) mmHg, and emmetropia group IOP was (17.81 ± 3.16) mmHg. The results are: As we age, non-contact tonometry values tended to increase; gender has no effect on IOP measurement; detecting IOP found the value of the right eyes higher than the left eye; the refractive errors of (hyperopia, myopia and emmetropia); The values of IOP of myopia and hyperopia are higher than the emmetropia eyes.