Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Dynamic Contour Tonometry: A Comparative Study on Human Cadaver Eyes Arch Ophthalmol. 2004;122(9): doi: /archopht Dynamic contour tonometer (DCT)tip. A, The DCT tip inserted into a Goldmann applanation tonometer tip holder.B, Surface of the experimental DCT tip. A piezoelectric pressure sensor (1)is built in the concavity of the tip. The contour-matched contact surface(2) is located concentrically around the pressure sensor. Figure Legend:

Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Dynamic Contour Tonometry: A Comparative Study on Human Cadaver Eyes Arch Ophthalmol. 2004;122(9): doi: /archopht Experimental tubing system. 1,Dynamic contour tonometer (DCT) base station; 2, DCT recharge unit; 3, DCTpressure-sensitive tip; 4, Goldmann applanation tonometry tip holder mountedat a slitlamp; 5, human cadaver eye, anterior chamber filled with 20% dextran;6, eye holder with moisturized gauze; 7, pressure transducer; 8, manometricdevice; 9-11, tubing system filled with balanced salt solution; 9, referencetube open to atmospheric pressure; 10, bottle with isotonic sodium chloridesolution, variable height; 11, stopcocks with syringes to bleed air bubblesfrom the tubing system. CCW 3-6 indicates that items labeled 3, 4, 5, and6 were rotated 90° during the actual measurements of intraocular pressurewith all of the instruments but are shown in the displayed orientation forsimplicity of diagram. Figure Legend:

Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Dynamic Contour Tonometry: A Comparative Study on Human Cadaver Eyes Arch Ophthalmol. 2004;122(9): doi: /archopht Absolute pressure readings. Intraocularpressure (IOP) values obtained with the dynamic contour tonometer (DCT) didnot differ significantly from the manometric pressure (P =.18). Goldmann applanation tonometry (GAT) and pneumatonometry(PTG) provided values significantly different from the manometric referencepressure (IOP) (P<.001). Figure Legend:

Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Dynamic Contour Tonometry: A Comparative Study on Human Cadaver Eyes Arch Ophthalmol. 2004;122(9): doi: /archopht Algebraic deviation from manometricintraocular pressure (IOP). Values obtained with the dynamic contour tonometer(DCT) measured on average 0.58 ± 0.70 mm Hg higher than intracameralpressure indicated by the manometer. Goldmann applanation tonometry (GAT)and pneumatonometry (PGT) showed consistently lower values, −4.01 ±1.76 mm Hg and −5.09 ± 2.61 mm Hg, respectively. Dynamic contourtonometry (DCT) values at all bottle heights were significantly closer tothe reference pressure than GAT and PTG values (P<.001). Figure Legend:

Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Dynamic Contour Tonometry: A Comparative Study on Human Cadaver Eyes Arch Ophthalmol. 2004;122(9): doi: /archopht Goldmann applanation tonometryhemidisc setting chosen for the entire study. Hemidiscs overlap approximatelyone fifth of the disc diameter (2 times the ring width). Figure Legend: