Get access

Application of physical principles in the development of tonometry


Correspondence: Dr Gordon C Stuckey, 14 Hargrave Lane, Paddington, NSW 2021, Australia. Email:


A review of the development of applanation tonometry is undertaken from the perspective of the physical principles involved. Original articles that have contributed to this process are discussed. The result of this endeavour leads to a conclusion that corneal thinning procedures have no effect on original intraocular pressure. Also concluded is a methodology that would allow the direct measurement of original intraocular pressure.