Usefulness Assessment of Automated Strabismus Angle Measurements Using Innovative Strabiscan Device
Background: The variability of the obtained results of manual tests assessing the angle of strabismus depends on the experience, skills, and training of the examiner. The authors hope that this new measuring device will provide a more sensitive and repeatable method for detecting small strabismus an...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Journal of Clinical Medicine |
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| Online Access: | https://www.mdpi.com/2077-0383/13/4/1067 |
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| author | Ewa Grudzińska Magdalena Durajczyk Marek Grudziński Łukasz Marchewka Monika Modrzejewska |
| author_facet | Ewa Grudzińska Magdalena Durajczyk Marek Grudziński Łukasz Marchewka Monika Modrzejewska |
| author_sort | Ewa Grudzińska |
| collection | DOAJ |
| description | Background: The variability of the obtained results of manual tests assessing the angle of strabismus depends on the experience, skills, and training of the examiner. The authors hope that this new measuring device will provide a more sensitive and repeatable method for detecting small strabismus angles compared to the gold standard—PCT. The purpose of this article is to present an innovative strabismus angle demonstration device, called Strabiscan, to provide automated measurements of eye deviation and to compare the obtained results of these measurements to the traditional manual method. Methods: For patients with manifest strabismic disease (<i>n</i> = 30) and a group of healthy subjects (<i>n</i> = 30), a detailed history was taken and routine ophthalmologic examinations were performed, including best-corrected distance visual acuity, assessment of refractive error using an autorefractometer after cycloplegia, biomicroscopic evaluation of the anterior segment of the eye and evaluation of the eye fundus by indirect ophthalmoscopy. Subsequently, each patient and healthy subject was subjected to a prismatic cover–uncover test using a manual method, after which the presence of strabismus was detected and its angle assessed using a Strabiscan demonstration device. Results: In the control group using the Strabiscan demonstration device, small-angle latent strabismus ≤ 3DP was diagnosed in 83% of patients, while >3DP was found in 13%. In contrast, using the prismatic cover–uncover test, latent strabismus ≤ 3DP was diagnosed in only 13% of patients, and latent strabismus with an angle > 3DP was found in 13% of patients. No statistically significant differences were noted in the measurements of strabismus angles made by the different methods. Conclusions: The Strabiscan demonstration device allows quick and accurate assessment of the strabismus angle. Compared to the prismatic cover–uncover test, it has a higher sensitivity for detecting low-angle latent strabismus. Measurements with the Strabiscan do not require the presence of additional assistants for the test. |
| first_indexed | 2024-03-07T22:26:53Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2077-0383 |
| language | English |
| last_indexed | 2024-03-07T22:26:53Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Clinical Medicine |
| spelling | doaj.art-a22924dde33d4bfc840d27d2e09b8c522024-02-23T15:22:12ZengMDPI AGJournal of Clinical Medicine2077-03832024-02-01134106710.3390/jcm13041067Usefulness Assessment of Automated Strabismus Angle Measurements Using Innovative Strabiscan DeviceEwa Grudzińska0Magdalena Durajczyk1Marek Grudziński2Łukasz Marchewka3Monika Modrzejewska4Second Chair and Department of Ophthalmology, Pomeranian Medical University in Szczecin, 70-111 Szczecin, PolandSecond Chair and Department of Ophthalmology, Pomeranian Medical University in Szczecin, 70-111 Szczecin, PolandFaculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, 70-310 Szczecin, PolandFaculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, 70-310 Szczecin, PolandSecond Chair and Department of Ophthalmology, Pomeranian Medical University in Szczecin, 70-111 Szczecin, PolandBackground: The variability of the obtained results of manual tests assessing the angle of strabismus depends on the experience, skills, and training of the examiner. The authors hope that this new measuring device will provide a more sensitive and repeatable method for detecting small strabismus angles compared to the gold standard—PCT. The purpose of this article is to present an innovative strabismus angle demonstration device, called Strabiscan, to provide automated measurements of eye deviation and to compare the obtained results of these measurements to the traditional manual method. Methods: For patients with manifest strabismic disease (<i>n</i> = 30) and a group of healthy subjects (<i>n</i> = 30), a detailed history was taken and routine ophthalmologic examinations were performed, including best-corrected distance visual acuity, assessment of refractive error using an autorefractometer after cycloplegia, biomicroscopic evaluation of the anterior segment of the eye and evaluation of the eye fundus by indirect ophthalmoscopy. Subsequently, each patient and healthy subject was subjected to a prismatic cover–uncover test using a manual method, after which the presence of strabismus was detected and its angle assessed using a Strabiscan demonstration device. Results: In the control group using the Strabiscan demonstration device, small-angle latent strabismus ≤ 3DP was diagnosed in 83% of patients, while >3DP was found in 13%. In contrast, using the prismatic cover–uncover test, latent strabismus ≤ 3DP was diagnosed in only 13% of patients, and latent strabismus with an angle > 3DP was found in 13% of patients. No statistically significant differences were noted in the measurements of strabismus angles made by the different methods. Conclusions: The Strabiscan demonstration device allows quick and accurate assessment of the strabismus angle. Compared to the prismatic cover–uncover test, it has a higher sensitivity for detecting low-angle latent strabismus. Measurements with the Strabiscan do not require the presence of additional assistants for the test.https://www.mdpi.com/2077-0383/13/4/1067strabismus diagnostic devicestrabismus angle measurementimage analysiseye tracking |
| spellingShingle | Ewa Grudzińska Magdalena Durajczyk Marek Grudziński Łukasz Marchewka Monika Modrzejewska Usefulness Assessment of Automated Strabismus Angle Measurements Using Innovative Strabiscan Device Journal of Clinical Medicine strabismus diagnostic device strabismus angle measurement image analysis eye tracking |
| title | Usefulness Assessment of Automated Strabismus Angle Measurements Using Innovative Strabiscan Device |
| title_full | Usefulness Assessment of Automated Strabismus Angle Measurements Using Innovative Strabiscan Device |
| title_fullStr | Usefulness Assessment of Automated Strabismus Angle Measurements Using Innovative Strabiscan Device |
| title_full_unstemmed | Usefulness Assessment of Automated Strabismus Angle Measurements Using Innovative Strabiscan Device |
| title_short | Usefulness Assessment of Automated Strabismus Angle Measurements Using Innovative Strabiscan Device |
| title_sort | usefulness assessment of automated strabismus angle measurements using innovative strabiscan device |
| topic | strabismus diagnostic device strabismus angle measurement image analysis eye tracking |
| url | https://www.mdpi.com/2077-0383/13/4/1067 |
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