The effect of corneal thickness on applanation tonometry.

  title={The effect of corneal thickness on applanation tonometry.},
  author={M M Whitacre and Richard A. Stein and Khatab Hassanein},
  journal={American journal of ophthalmology},
  volume={115 5},
Simultaneous manometry and Perkins tonometry were performed at 10.0, 20.0, and 30.0 mm Hg on 15 eyes on which intraocular procedures were performed. There was a statistically significant relationship between corneal thickness and the error of Perkins tonometry. Thin corneas produced underestimations of the intraocular pressure by as much as 4.9 mm Hg, whereas thick corneas produced overestimations by as much as 6.8 mm Hg. Measuring the corneal thickness is necessary to interpret properly the… CONTINUE READING
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