Cling film as a barrier against CJD in Goldmann-type applanation tonometry

Davies, Leon N., Bartlett, Hannah E. and Dunne, Mark C.M. (2004). Cling film as a barrier against CJD in Goldmann-type applanation tonometry. Ophthalmic and Physiological Optics, 24 (1), pp. 27-34.


Purpose: To determine the feasibility of taking intra-ocular pressure (IOP) readings with Goldmann-type applanation tonometer probe covered with cling film to avoid transmission of Creutzfeldt-Jakob disease (CJD). Methods: Data were collected on two occasions from the right eyes of 30 healthy subjects using a Perkins applanation tonometer. On each occasion, a single tonometry measurement was made with and without cling film covering. Results: Cling film covering brought about a statistically significant IOP bias (-0.8 mmHg on first occasion and -1.17 mmHg on second occasion). The 95% limits of agreement, between readings made with and without cling film covering, were ±3.4 mmHg on first occasion; ±2.5 mmHg on second occasion. A statistically significant reduction of inter-sessional repeatability was observed for readings taken with cling film (±5.2 mmHg) compared to those made without (±3.9 mmHg). Conclusions: Even if the above findings are found to be acceptable, given the known intra-subject variations of this type of tonometry (±4 mmHg), ethical and legal considerations relating to the barrier properties of cling film are likely to prevent its routine use by optometrists. © 2004 The College of Optometrists.

Publication DOI:
Divisions: Life & Health Sciences > Optometry
Life & Health Sciences > Ophthalmic Research Group
Life & Health Sciences
Uncontrolled Keywords: cling film,Creutzfeldt-Jakob disease,Goldmann-type applanation tonometry,Ophthalmology,Sensory Systems,Health Professions(all)
Full Text Link: ... 775304/abstract
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2004-01
Authors: Davies, Leon N. ( 0000-0002-1554-0566)
Bartlett, Hannah E. ( 0000-0002-7531-6902)
Dunne, Mark C.M. ( 0000-0001-9126-0702)

Export / Share Citation


Additional statistics for this record