Reliability of the Nidek NT-1000 non contact tonometer.
In this prospective study, we compared the intraocular pressure (IOP) readings of 100 patients measured with the Goldmann applanation tonometer and the Nidek NT-1000 pneumotonometer. The correlation coefficient between the Goldmann and Nidek readings was 0.86. On the average the pneumotonometer overestimated the intraocular pressure with 0.43 mm Hg. The Nidek NT-1000 non contact tonometer can be used for screening purposes provided an appropriately low IOP value is used to indicate the need for further assessment with the Goldman applanation tonometer.
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005901:Glaucoma / Q000503:physiopathology; D006801:Humans; D007429:Intraocular Pressure; D008875:Middle Aged; D011446:Prospective Studies; D012016:Reference Values; D014065:Tonometry, Ocular / Q000295:instrumentation / Q000379:methods*