Comparing Predictive Accuracy of a Swept Source Optical Coherence Tomography Biometer and an Optical Low Coherence Reflectometry Biometer
Clayton Blehm,1 Brad Hall2 1Gainesville Eye Associates, Gainesville, GA, USA; 2Sengi, Penniac, NB, CanadaCorrespondence: Clayton Blehm, Gainesville Eye Associates, 2061 Beverly Road, Gainesville, GA, 30501, USA, Tel +1 770-532-4444, Email claytonblehm@gmail.comPurpose: To compare the refractive accu...
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| Format: | Article |
| Language: | English |
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Dove Medical Press
2023-07-01
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| Series: | Clinical Ophthalmology |
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| Online Access: | https://www.dovepress.com/comparing-predictive-accuracy-of-a-swept-source-optical-coherence-tomo-peer-reviewed-fulltext-article-OPTH |
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| author | Blehm C Hall B |
| author_facet | Blehm C Hall B |
| author_sort | Blehm C |
| collection | DOAJ |
| description | Clayton Blehm,1 Brad Hall2 1Gainesville Eye Associates, Gainesville, GA, USA; 2Sengi, Penniac, NB, CanadaCorrespondence: Clayton Blehm, Gainesville Eye Associates, 2061 Beverly Road, Gainesville, GA, 30501, USA, Tel +1 770-532-4444, Email claytonblehm@gmail.comPurpose: To compare the refractive accuracy resulting from calculations based on measurements with a swept-source optical coherence tomography (SS-OCT) biometer compared to calculations based on measurements with an optical low coherence reflectometry (OLCR) biometer at one month postoperatively.Methods: This was a retrospective comparative non-interventional study of preoperative biometry and postoperative refraction and visual acuity of 200 eyes. All eyes had preoperative biometry with both the Argos (Movu, a Santec company) and Lenstar LS900 (Haag-Streit AG) devices. Data were collected for mean postoperative prediction error (directional and absolute), preoperative mean K, delta K (corneal astigmatism), axial length, and anterior chamber depth.Results: The mean directional prediction error was − 0.15 ± 0.47 D for Argos and − 0.31 ± 0.50 D for Lenstar LS900, and there was a statistically significant mean of the differences (0.16 ± 0.24 D; p < 0.001). The mean absolute prediction error was 0.35 ± 0.34 D for Argos and 0.42 ± 0.41 D for Lenstar LS900, and there was a statistically significant mean of the differences (− 0.07 ± 0.24 D; p < 0.001). Neither the differences in directional prediction error nor the differences in absolute prediction error were clinically significant.Conclusion: The directional and absolute prediction accuracies were statistically significant, but not clinically different between the Argos and Lenstar LS900 devices. In addition, differences between preoperative K, AL, and ACD measurements were not clinically significant.Keywords: Argos, Lenstar LS900, biometry, SS-OCT, OLCR |
| first_indexed | 2024-03-12T21:55:02Z |
| format | Article |
| id | doaj.art-4bdca2a8c8894c5c87735c6be0e86edf |
| institution | Directory Open Access Journal |
| issn | 1177-5483 |
| language | English |
| last_indexed | 2024-03-12T21:55:02Z |
| publishDate | 2023-07-01 |
| publisher | Dove Medical Press |
| record_format | Article |
| series | Clinical Ophthalmology |
| spelling | doaj.art-4bdca2a8c8894c5c87735c6be0e86edf2023-07-25T19:04:50ZengDove Medical PressClinical Ophthalmology1177-54832023-07-01Volume 172125213185406Comparing Predictive Accuracy of a Swept Source Optical Coherence Tomography Biometer and an Optical Low Coherence Reflectometry BiometerBlehm CHall BClayton Blehm,1 Brad Hall2 1Gainesville Eye Associates, Gainesville, GA, USA; 2Sengi, Penniac, NB, CanadaCorrespondence: Clayton Blehm, Gainesville Eye Associates, 2061 Beverly Road, Gainesville, GA, 30501, USA, Tel +1 770-532-4444, Email claytonblehm@gmail.comPurpose: To compare the refractive accuracy resulting from calculations based on measurements with a swept-source optical coherence tomography (SS-OCT) biometer compared to calculations based on measurements with an optical low coherence reflectometry (OLCR) biometer at one month postoperatively.Methods: This was a retrospective comparative non-interventional study of preoperative biometry and postoperative refraction and visual acuity of 200 eyes. All eyes had preoperative biometry with both the Argos (Movu, a Santec company) and Lenstar LS900 (Haag-Streit AG) devices. Data were collected for mean postoperative prediction error (directional and absolute), preoperative mean K, delta K (corneal astigmatism), axial length, and anterior chamber depth.Results: The mean directional prediction error was − 0.15 ± 0.47 D for Argos and − 0.31 ± 0.50 D for Lenstar LS900, and there was a statistically significant mean of the differences (0.16 ± 0.24 D; p < 0.001). The mean absolute prediction error was 0.35 ± 0.34 D for Argos and 0.42 ± 0.41 D for Lenstar LS900, and there was a statistically significant mean of the differences (− 0.07 ± 0.24 D; p < 0.001). Neither the differences in directional prediction error nor the differences in absolute prediction error were clinically significant.Conclusion: The directional and absolute prediction accuracies were statistically significant, but not clinically different between the Argos and Lenstar LS900 devices. In addition, differences between preoperative K, AL, and ACD measurements were not clinically significant.Keywords: Argos, Lenstar LS900, biometry, SS-OCT, OLCRhttps://www.dovepress.com/comparing-predictive-accuracy-of-a-swept-source-optical-coherence-tomo-peer-reviewed-fulltext-article-OPTHargoslenstar ls900biometryss-octolcr |
| spellingShingle | Blehm C Hall B Comparing Predictive Accuracy of a Swept Source Optical Coherence Tomography Biometer and an Optical Low Coherence Reflectometry Biometer Clinical Ophthalmology argos lenstar ls900 biometry ss-oct olcr |
| title | Comparing Predictive Accuracy of a Swept Source Optical Coherence Tomography Biometer and an Optical Low Coherence Reflectometry Biometer |
| title_full | Comparing Predictive Accuracy of a Swept Source Optical Coherence Tomography Biometer and an Optical Low Coherence Reflectometry Biometer |
| title_fullStr | Comparing Predictive Accuracy of a Swept Source Optical Coherence Tomography Biometer and an Optical Low Coherence Reflectometry Biometer |
| title_full_unstemmed | Comparing Predictive Accuracy of a Swept Source Optical Coherence Tomography Biometer and an Optical Low Coherence Reflectometry Biometer |
| title_short | Comparing Predictive Accuracy of a Swept Source Optical Coherence Tomography Biometer and an Optical Low Coherence Reflectometry Biometer |
| title_sort | comparing predictive accuracy of a swept source optical coherence tomography biometer and an optical low coherence reflectometry biometer |
| topic | argos lenstar ls900 biometry ss-oct olcr |
| url | https://www.dovepress.com/comparing-predictive-accuracy-of-a-swept-source-optical-coherence-tomo-peer-reviewed-fulltext-article-OPTH |
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