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Measurement of corneal thickness using Pentacam HR versus Nidek CEM-530 specular microscopy
OBJECTIVE: To compare corneal thickness (CT) measurements using the CEM-530 (Nidal, Gamagori, Japan) and Pentacam HR (Oculus, Wetzlar, Germany). METHODS: The CT of 209 healthy subjects (209 right eyes) aged 24 to 89 years (71.35 ± 10.72 years) was measured at the corneal apex (CA), pupil center (PC)...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7783267/ https://www.ncbi.nlm.nih.gov/pubmed/31878803 http://dx.doi.org/10.1177/0300060519892385 |
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author | De Bernardo, Maddalena Cornetta, Palmiro Marotta, Giuseppe Salerno, Giulio De Pascale, Ilaria Rosa, Nicola |
author_facet | De Bernardo, Maddalena Cornetta, Palmiro Marotta, Giuseppe Salerno, Giulio De Pascale, Ilaria Rosa, Nicola |
author_sort | De Bernardo, Maddalena |
collection | PubMed |
description | OBJECTIVE: To compare corneal thickness (CT) measurements using the CEM-530 (Nidal, Gamagori, Japan) and Pentacam HR (Oculus, Wetzlar, Germany). METHODS: The CT of 209 healthy subjects (209 right eyes) aged 24 to 89 years (71.35 ± 10.72 years) was measured at the corneal apex (CA), pupil center (PC), and thinnest point (TP) with the Pentacam HR and at the corneal center with the CEM-530 in random order at the same time of day. RESULTS: A good correlation but statistically significant difference was found between the CEM-530 and Pentacam HR measurements at the CA (6.10 ± 8.12 µm, R(2) = 0.8947), PC (7.46 ± 8.57 µm, R(2) = 0.8826), and TP (12.44 ± 10.04 µm, R(2) = 0.8392). Comparison of the two devices produced the following regression formulas: y = 0.8859x + 57.644 for the CA, y = 0.8852x +56.657 for the PC, and y = 0.8557x + 68.148 for the TP, where x is the CT obtained with the CEM-530 and y is that obtained with the Pentacam HR. CONCLUSIONS: These findings indicate that the CEM-530 produces a thicker corneal measurement than the Pentacam HR. The herein-proposed correcting factors are needed to reliably compare these devices. |
format | Online Article Text |
id | pubmed-7783267 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-77832672021-01-13 Measurement of corneal thickness using Pentacam HR versus Nidek CEM-530 specular microscopy De Bernardo, Maddalena Cornetta, Palmiro Marotta, Giuseppe Salerno, Giulio De Pascale, Ilaria Rosa, Nicola J Int Med Res Prospective Clinical Research Report OBJECTIVE: To compare corneal thickness (CT) measurements using the CEM-530 (Nidal, Gamagori, Japan) and Pentacam HR (Oculus, Wetzlar, Germany). METHODS: The CT of 209 healthy subjects (209 right eyes) aged 24 to 89 years (71.35 ± 10.72 years) was measured at the corneal apex (CA), pupil center (PC), and thinnest point (TP) with the Pentacam HR and at the corneal center with the CEM-530 in random order at the same time of day. RESULTS: A good correlation but statistically significant difference was found between the CEM-530 and Pentacam HR measurements at the CA (6.10 ± 8.12 µm, R(2) = 0.8947), PC (7.46 ± 8.57 µm, R(2) = 0.8826), and TP (12.44 ± 10.04 µm, R(2) = 0.8392). Comparison of the two devices produced the following regression formulas: y = 0.8859x + 57.644 for the CA, y = 0.8852x +56.657 for the PC, and y = 0.8557x + 68.148 for the TP, where x is the CT obtained with the CEM-530 and y is that obtained with the Pentacam HR. CONCLUSIONS: These findings indicate that the CEM-530 produces a thicker corneal measurement than the Pentacam HR. The herein-proposed correcting factors are needed to reliably compare these devices. SAGE Publications 2019-12-26 /pmc/articles/PMC7783267/ /pubmed/31878803 http://dx.doi.org/10.1177/0300060519892385 Text en © The Author(s) 2019 https://creativecommons.org/licenses/by-nc/4.0/ Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | Prospective Clinical Research Report De Bernardo, Maddalena Cornetta, Palmiro Marotta, Giuseppe Salerno, Giulio De Pascale, Ilaria Rosa, Nicola Measurement of corneal thickness using Pentacam HR versus Nidek CEM-530 specular microscopy |
title | Measurement of corneal thickness using Pentacam HR versus Nidek
CEM-530 specular microscopy |
title_full | Measurement of corneal thickness using Pentacam HR versus Nidek
CEM-530 specular microscopy |
title_fullStr | Measurement of corneal thickness using Pentacam HR versus Nidek
CEM-530 specular microscopy |
title_full_unstemmed | Measurement of corneal thickness using Pentacam HR versus Nidek
CEM-530 specular microscopy |
title_short | Measurement of corneal thickness using Pentacam HR versus Nidek
CEM-530 specular microscopy |
title_sort | measurement of corneal thickness using pentacam hr versus nidek
cem-530 specular microscopy |
topic | Prospective Clinical Research Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7783267/ https://www.ncbi.nlm.nih.gov/pubmed/31878803 http://dx.doi.org/10.1177/0300060519892385 |
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