Cyclocheck: a new web-based software for the assessment of objective cyclodeviation

Simiera, Justyna; Loba, Piotr

doi:10.1016/j.jaapos.2017.02.009

Cited by 12 publications

(17 citation statements)

References 17 publications

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“…23 Nevertheless, high repeatability and reproducibility achieved with our software indicate that special leveling devices are not necessary to guarantee stable head position. 18 Standard head-support and chinrest incorporated in the fundus camera is sufficient for precise measurement of the DFA.…”

Section: Discussionmentioning

confidence: 99%

“…The DFA was calculated using special graphic software Cyclocheck ® , described in detail elsewhere. 18 Two separate fundus photographs were taken of each eye by the first author (J.S. ), and the average result of the DFA measurements was considered for data analysis.…”

Section: Methodsmentioning

confidence: 99%

“…We have recently proposed the Cyclocheck ® application for objective assessment of cyclodeviation, which has been demonstrated to be a reliable and convenient method to calculate the DFA. 18 The objective of the present study was to investigate the range of cyclodeviation in normal subjects by means of the above-mentioned web-based software, freely available at www.cyclocheck.com.…”

Section: Introductionmentioning

confidence: 99%

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Objective cyclodeviation measurement in normal subjects by means of Cyclocheck^® application

Simiera

Ordon

Loba

2020

European Journal of Ophthalmology

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Purpose: To evaluate the range of cyclodeviation in normal individuals by means of Cyclocheck® application recently designed by the authors and freely available at www.cyclocheck.com . Methods: Healthy subjects with normal muscle balance, best-corrected visual acuity of ⩾0.8, and stereopsis on Randot charts of ⩽100 s of arc were included in the study. Two separate digital fundus photographs were taken of each eye of every patient. The disk-foveal angle was calculated using the Cyclocheck® application. The average result of the disk-foveal angle measurements were considered for data analysis. Results: A total of 131 patients met inclusion criteria for the study population. The mean value of the disk-foveal angle in the whole study group (both right and left eye) was 6.39° ± 2.72° with 5.26° ± 2.56° (range from −0.4° to 12.55°) in the right eye and 7.52° ± 2.39° (range from 1.25° to 12.76°) in the left eye. The mean value of the disk-foveal angle of the left eye was greater by 2.26° than that of the right eye. Conclusion: Cyclocheck® software allows easy assessment of cyclodeviation. Normal individuals present with a positive value of the disk-foveal angle with a certain spread of the results. The analysis of obtained measurements revealed a significant asymmetry between both eyes with the left eye being more excyclodeviated in an otherwise orthotropic population, which remains a subject for further investigations.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Objective cyclodeviation measurement in normal subjects by means of Cyclocheck^® application

Simiera

Ordon

Loba

2020

European Journal of Ophthalmology

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“…Cycloposition is quantified by the inclination of a line connecting the fovea with the optic disc centre in relation to the horizon ( Figure ). It is called the disc‐fovea angle (DFA) and is considered the gold standard method for objective cycloposition measurement 4–8 . By convention, the DFA is positive when the fovea is below the optic disc centre and negative when it is above.…”

Section: Introductionmentioning

confidence: 99%

“…The DFA has recently become a relevant parameter in torsional change due to its good repeatability and reproducibility 4,6,8,13,19 . It is assessed in strabismus monitoring and is considered an important change parameter in extraocular muscle surgery 20–25 …”

Section: Introductionmentioning

confidence: 99%

Minimal detectable change of the disc‐fovea angle for ocular torsion assessment

Piedrahita-Alonso

Valverde-Megías

Martín-García

et al. 2021

Ophthalmic Physiologic Optic

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Purpose The disc‐fovea angle (DFA) is used as a relevant indicator of ocular torsion change in cyclovertical strabismus. However, interpretation of the variation in time must differentiate whether a real change has occurred or if the disparity is due to random measurement error. The aim of the study was to obtain the minimal detectable change (MDC) of the DFA. It represents the minimal variation between two measurements that may be considered a real ocular torsion change. Methods A prospective cross‐sectional study was conducted in San Carlos Clinical Hospital of Madrid, Spain. Sixty healthy right eyes from 60 patients (31 men and 29 women) were recruited. Three digital fundus photographs were obtained, and between measurements, the patient moved their head away from the head support and then returned. Two observers quantified the DFA with software designed with MATLAB. Test‐retest and interrater reliability were calculated. Results Mean participant age was 56.1 years (SD 16.6, range 25–85). Mean DFA was 8.1° (SD 3.5, range 1.3–18.5). Test‐retest reliability for Observer 1 (Ob1), Observer 2 (Ob2) and interrater reliability were excellent (ICC 0.80, 0.83 and 0.95, respectively). Precision was 2.9° (Ob1) and 3.0° (Ob2), and the MDC95 was 4.1° (Ob1) and 4.2° (Ob2). Bland‐Altman analysis revealed an absence of bias and a homoscedastic distribution of the differences. Conclusions The MDC of the DFA in fundus photography was 4°, which represents the minimal change that may be considered a real change in ocular torsion. This result may improve the interpretation of ocular torsion changes in surgery and clinical scenarios.

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Superior oblique paresis after endoscopic brow lift: A case report

Shekarchian,

Motamed Shariati,

Karimi Amir Abadi

2024

Clinical Case Reports

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Key Clinical MessageAlthough a forehead lift is generally a safe surgery, it has well‐known complications. Iatrogenic SO paresis is one of the rare complications following forehead lifting procedures which almost resolves spontaneously.AbstractThis report aims to introduce a woman with superior oblique (SO) muscle paresis following the brow and forehead lift procedure. A 30‐year‐old woman with a history of brow and forehead lift surgery was referred to the ophthalmic emergency department complaining of vertical diplopia. A right eye hypertropia was obvious at the left gaze. A Park's three‐step test showed right eye superior oblique paresis. Other ophthalmic examinations including slit‐lamp examination, tonometry, and dilated fundoscopy were unremarkable for both eyes. After a 3‐month follow‐up period, she had no diplopia. No sign of SO paresis was apparent in her ocular motility examinations. Iatrogenic SO paresis is one of the rare complications following forehead lifting procedures which almost resolves spontaneously.

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Cyclocheck: a new web-based software for the assessment of objective cyclodeviation

Cited by 12 publications

References 17 publications

Objective cyclodeviation measurement in normal subjects by means of Cyclocheck^® application

Objective cyclodeviation measurement in normal subjects by means of Cyclocheck^® application

Minimal detectable change of the disc‐fovea angle for ocular torsion assessment

Superior oblique paresis after endoscopic brow lift: A case report

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Cyclocheck: a new web-based software for the assessment of objective cyclodeviation

Cited by 12 publications

References 17 publications

Objective cyclodeviation measurement in normal subjects by means of Cyclocheck® application

Objective cyclodeviation measurement in normal subjects by means of Cyclocheck® application

Minimal detectable change of the disc‐fovea angle for ocular torsion assessment

Superior oblique paresis after endoscopic brow lift: A case report

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Objective cyclodeviation measurement in normal subjects by means of Cyclocheck^® application

Objective cyclodeviation measurement in normal subjects by means of Cyclocheck^® application