Comparison and comparability of pneumotonometry and rebound tonometry results with Maklakov’s applanation tonometry

BACKGROUND: Introduction and use of various tonometry methods can lead to misinterpretation intraocular pressure results influence the choice treating approaches by ophthalmologist in a glaucoma patient.
 AIM: To compare pneumotonometry rebound with Maklakovs applanation develop corrections for their comparability.
 MATERIALS AND METHODS: The study included 75 patients. All subjects underwent Maklakov (10 g) pachymetry (Topcon SP-3000P). In 48 patients (94 eyes) 1st group, (TONOREF II Nidek) was performed, 27 2nd group (52 (iCare IC-100).
 RESULTS: mean difference level 4.81 (p 0.001), 0.98 mmHg = 0.399). Both pneumo- showed underestimated less than 23.0 22.5 (respectively) relative and, conversely, overestimated when these values were exceeded. A significant 0.001) strong (R2 0.86) relationship between obtained, which made it possible, using regression analysis, formula recalculating iCare into those tonometry: PMaklakov 0.40 PiCare + 13.44.
 CONCLUSIONS: demonstrate adequate P0 below overestimate are developed allows converting tonometry.