Tonometry2012
Tonometry2012
Tonometry2012
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Clinical considerations for Mackay Mackay-Marg<br />
Mackay Mackay-Marg Marg<br />
type tonometers<br />
Mackay – Marg highly accurate in dogs and cats<br />
Tono-Pen varies by model<br />
Highly accurate and precise over normal physiological range<br />
Less so at extremes of IOP<br />
Overestimates low IOPs, underestimates high IOPs<br />
Less affected by corneal disease than other types<br />
Artefactual under-estimation of IOP unlikely – so take the lowest<br />
reliable reading<br />
Viscosity of tear film affects the readings (increasing them by about<br />
15% if methylcellulose)<br />
Off center application doesn’ t significantly affect readings
Change language