Comparison of measurements between manual and automated eyetracking systems in patients with strabismus – A preliminary study
Purpose: The main objective is to test the measurements made by an automated eye-tracking system in the presence of strabismus and to compare the data with manual measurements of deviation. Methods: A prospective observational cross-sectional masked double-blinded study was conducted in a tertiary e...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2022-01-01
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| Series: | Indian Journal of Ophthalmology |
| Subjects: | |
| Online Access: | http://www.ijo.in/article.asp?issn=0301-4738;year=2022;volume=70;issue=10;spage=3625;epage=3628;aulast=Rajendran |
| _version_ | 1797995917068992512 |
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| author | Janani Rajendran Kshama Rai Shashikant Shetty V Mathangi |
| author_facet | Janani Rajendran Kshama Rai Shashikant Shetty V Mathangi |
| author_sort | Janani Rajendran |
| collection | DOAJ |
| description | Purpose: The main objective is to test the measurements made by an automated eye-tracking system in the presence of strabismus and to compare the data with manual measurements of deviation. Methods: A prospective observational cross-sectional masked double-blinded study was conducted in a tertiary eye care center with 39 participants included in our study, aged 3–41 years. Initial screening of all participants was performed by an ophthalmologist. Ocular deviations were evaluated and compared between manual measurements and an automated eye-tracking system. The device is based on eye-tracking technology. The participants had either a congenital or acquired type of manifest or latent strabismus. Children less than 3 years of age, visual acuity <6/36, and abnormal configuration of the anterior segment were excluded from the study. Results: The prism alternate cover test (PACT) manual measurements and the automated alternate cover test for measuring horizontal deviation, the manual measurement, and the automated eye track system showed a highly positive correlation (r = 0.932, P < 0.001). The Bland Altman plot analysis shows good agreement between the two measurements, with the mean difference between the two measurements being 1.55 PD, and the 95% limit of agreement was ± 10 PD. Conclusion: The results obtained with an automated eye-tracking system correlate well with manual strabismus measurements with PACT in terms of diagnosis, precision, and accuracy, with an added benefit of lesser time consumption in performing the test in cooperative/motivated patients. Considering these aspects, patients above the age of 3 years could be assessed with the equipment. |
| first_indexed | 2024-04-11T10:09:15Z |
| format | Article |
| id | doaj.art-2d4f12231f64445b955ee6fa47ed9ebc |
| institution | Directory Open Access Journal |
| issn | 0301-4738 1998-3689 |
| language | English |
| last_indexed | 2024-04-11T10:09:15Z |
| publishDate | 2022-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Ophthalmology |
| spelling | doaj.art-2d4f12231f64445b955ee6fa47ed9ebc2022-12-22T04:30:09ZengWolters Kluwer Medknow PublicationsIndian Journal of Ophthalmology0301-47381998-36892022-01-0170103625362810.4103/ijo.IJO_487_22Comparison of measurements between manual and automated eyetracking systems in patients with strabismus – A preliminary studyJanani RajendranKshama RaiShashikant ShettyV MathangiPurpose: The main objective is to test the measurements made by an automated eye-tracking system in the presence of strabismus and to compare the data with manual measurements of deviation. Methods: A prospective observational cross-sectional masked double-blinded study was conducted in a tertiary eye care center with 39 participants included in our study, aged 3–41 years. Initial screening of all participants was performed by an ophthalmologist. Ocular deviations were evaluated and compared between manual measurements and an automated eye-tracking system. The device is based on eye-tracking technology. The participants had either a congenital or acquired type of manifest or latent strabismus. Children less than 3 years of age, visual acuity <6/36, and abnormal configuration of the anterior segment were excluded from the study. Results: The prism alternate cover test (PACT) manual measurements and the automated alternate cover test for measuring horizontal deviation, the manual measurement, and the automated eye track system showed a highly positive correlation (r = 0.932, P < 0.001). The Bland Altman plot analysis shows good agreement between the two measurements, with the mean difference between the two measurements being 1.55 PD, and the 95% limit of agreement was ± 10 PD. Conclusion: The results obtained with an automated eye-tracking system correlate well with manual strabismus measurements with PACT in terms of diagnosis, precision, and accuracy, with an added benefit of lesser time consumption in performing the test in cooperative/motivated patients. Considering these aspects, patients above the age of 3 years could be assessed with the equipment.http://www.ijo.in/article.asp?issn=0301-4738;year=2022;volume=70;issue=10;spage=3625;epage=3628;aulast=Rajendranalternate cover testautomated eye tracking systemstrabismus measurement |
| spellingShingle | Janani Rajendran Kshama Rai Shashikant Shetty V Mathangi Comparison of measurements between manual and automated eyetracking systems in patients with strabismus – A preliminary study Indian Journal of Ophthalmology alternate cover test automated eye tracking system strabismus measurement |
| title | Comparison of measurements between manual and automated eyetracking systems in patients with strabismus – A preliminary study |
| title_full | Comparison of measurements between manual and automated eyetracking systems in patients with strabismus – A preliminary study |
| title_fullStr | Comparison of measurements between manual and automated eyetracking systems in patients with strabismus – A preliminary study |
| title_full_unstemmed | Comparison of measurements between manual and automated eyetracking systems in patients with strabismus – A preliminary study |
| title_short | Comparison of measurements between manual and automated eyetracking systems in patients with strabismus – A preliminary study |
| title_sort | comparison of measurements between manual and automated eyetracking systems in patients with strabismus a preliminary study |
| topic | alternate cover test automated eye tracking system strabismus measurement |
| url | http://www.ijo.in/article.asp?issn=0301-4738;year=2022;volume=70;issue=10;spage=3625;epage=3628;aulast=Rajendran |
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