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Comparison of dynamic contour tonometry with Goldmann applanation tonometry following Descemet's stripping automated endothelial keratoplasty (DSAEK).
Klin Monbl Augenheilkd. 2009 Apr; 226(4):241-4.KM

Abstract

BACKGROUND

Intraocular pressure (IOP) measurements using Goldmann applanation tonometry (GAT) are influenced by central corneal thickness (CCT) whereas dynamic contour tonometry (DCT) allows for IOP measurements independent of CCT. After Descemet's stripping automated endothelial keratoplasty (DSAEK) the CCT is, compared to healthy eyes, increased. The objective of this prospective study was to compare IOP measurements obtained by DCT and GAT in patients after a DSAEK procedure.

PATIENTS AND METHODS

DCT and GAT were performed 3 and/or 6 months after DSAEK. Comparison of means was performed using the Wilcoxon signed-ranks test.

RESULTS

In total, 50 IOP measurements on 33 eyes were obtained. Mean CCT was 621 (+/- 60) microm. Overall correlation between GAT and DCT was good, however, in some patients a remarkable difference between pressure readings of up to 10.8 mmHg was observed. Mean IOP readings obtained by DCT were significantly higher (20.9 +/- 5.9 mmHg) than those obtained by GAT (19.1 +/- 6.5 mmHg; p = 0.0002). However, the difference between GAT and DCT readings was not influenced by the thickness of the transplanted lamella.

DISCUSSION

The well-known difference in mean pressure readings between DCT and GAT was not affected by the increase in CCT following DSAEK. IOP readings with the GAT seem not to be influenced by the increase in CCT. Because of the remarkable differences in individual pairs of IOP measurements, both GAT and DCT should be used after DSAEK.

Authors+Show Affiliations

Department of Ophthalmology, Cantonal Hospital of Lucerne, Lucerne, Switzerland. frank.bochmann@ksl.chNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Controlled Clinical Trial
Journal Article

Language

eng

PubMed ID

19384775

Citation

Bochmann, F, et al. "Comparison of Dynamic Contour Tonometry With Goldmann Applanation Tonometry Following Descemet's Stripping Automated Endothelial Keratoplasty (DSAEK)." Klinische Monatsblatter Fur Augenheilkunde, vol. 226, no. 4, 2009, pp. 241-4.
Bochmann F, Kaufmann C, Becht C, et al. Comparison of dynamic contour tonometry with Goldmann applanation tonometry following Descemet's stripping automated endothelial keratoplasty (DSAEK). Klin Monbl Augenheilkd. 2009;226(4):241-4.
Bochmann, F., Kaufmann, C., Becht, C., Bachmann, L. M., & Thiel, M. A. (2009). Comparison of dynamic contour tonometry with Goldmann applanation tonometry following Descemet's stripping automated endothelial keratoplasty (DSAEK). Klinische Monatsblatter Fur Augenheilkunde, 226(4), 241-4. https://doi.org/10.1055/s-0028-1109242
Bochmann F, et al. Comparison of Dynamic Contour Tonometry With Goldmann Applanation Tonometry Following Descemet's Stripping Automated Endothelial Keratoplasty (DSAEK). Klin Monbl Augenheilkd. 2009;226(4):241-4. PubMed PMID: 19384775.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of dynamic contour tonometry with Goldmann applanation tonometry following Descemet's stripping automated endothelial keratoplasty (DSAEK). AU - Bochmann,F, AU - Kaufmann,C, AU - Becht,C, AU - Bachmann,L M, AU - Thiel,M A, Y1 - 2009/04/21/ PY - 2009/4/23/entrez PY - 2009/4/23/pubmed PY - 2009/7/14/medline SP - 241 EP - 4 JF - Klinische Monatsblatter fur Augenheilkunde JO - Klin Monbl Augenheilkd VL - 226 IS - 4 N2 - BACKGROUND: Intraocular pressure (IOP) measurements using Goldmann applanation tonometry (GAT) are influenced by central corneal thickness (CCT) whereas dynamic contour tonometry (DCT) allows for IOP measurements independent of CCT. After Descemet's stripping automated endothelial keratoplasty (DSAEK) the CCT is, compared to healthy eyes, increased. The objective of this prospective study was to compare IOP measurements obtained by DCT and GAT in patients after a DSAEK procedure. PATIENTS AND METHODS: DCT and GAT were performed 3 and/or 6 months after DSAEK. Comparison of means was performed using the Wilcoxon signed-ranks test. RESULTS: In total, 50 IOP measurements on 33 eyes were obtained. Mean CCT was 621 (+/- 60) microm. Overall correlation between GAT and DCT was good, however, in some patients a remarkable difference between pressure readings of up to 10.8 mmHg was observed. Mean IOP readings obtained by DCT were significantly higher (20.9 +/- 5.9 mmHg) than those obtained by GAT (19.1 +/- 6.5 mmHg; p = 0.0002). However, the difference between GAT and DCT readings was not influenced by the thickness of the transplanted lamella. DISCUSSION: The well-known difference in mean pressure readings between DCT and GAT was not affected by the increase in CCT following DSAEK. IOP readings with the GAT seem not to be influenced by the increase in CCT. Because of the remarkable differences in individual pairs of IOP measurements, both GAT and DCT should be used after DSAEK. SN - 1439-3999 UR - https://www.unboundmedicine.com/medline/citation/19384775/Comparison_of_dynamic_contour_tonometry_with_Goldmann_applanation_tonometry_following_Descemet's_stripping_automated_endothelial_keratoplasty__DSAEK__ L2 - http://www.thieme-connect.com/DOI/DOI?10.1055/s-0028-1109242 DB - PRIME DP - Unbound Medicine ER -