Mackay-Marg tonometer

Mac·kay-Marg to·nom·e·ter

(mă-kā' marg),
a recording electronic applanation tonometer.

Mackay,

Ralph Stuart, U.S. physicist, 1924–.
Mackay-Marg tonometer - a recording electronic applanation tonometer.

Marg,

Elwin, U.S. physicist, 1918–.
Mackay-Marg tonometer - see under Mackay