Table 1.1

Influence of corneal status, thickness and tear film on the intraocular pressure (IOP) value measured with the Goldmann Applanation Tonometry.

DirectKoeppe (contact fluid required)
Layden (sized for infants; contact fluid required)
Worst
IndirectPosner or Zeiss or Sussman 4 mirror (contact fluid not required)
Goldmann lens, 1 to 4 mirrors (contact fluid required)
CGA 1.4© Lasag (contact fluid required)
Magnaview (contact fluid required)