Translation and validation of Convergence Insufficiency Symptom Survey (CISS) to Portuguese - psychometric results

Tavares, Catarina; Nunes, Amélia; Nunes, António João Santos; Pato, Maria Vaz; Monteiro, Pedro

doi:10.5935/0004-2749.20140007

Cited by 9 publications

(9 citation statements)

References 15 publications

(33 reference statements)

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“…Our CISS VE showed a mean score (15.10 ± 10.13) that was comparable to those reported in studies conducted in similar populations, such as the adolescents assessed by Horan et al 6 (16.3 ± 11.4) and the university students used to develop the Portuguese version (CISS VP ; 15.56 ± 8.86). 5 These two studies provided mean scores for the entire group of participants instead of separating scores according to subjects' visual problems. Furthermore, the mean score obtained in our sample (from a general population) is higher than those reported by Rouse et al 2,38 in adults and children with normal binocular vision recruited from a clinical population (11.3 ± 8.1 for adults and 10.4 ± 8.1 for children).…”

Section: Discussionmentioning

confidence: 99%

“…The CISS is not a condition-specific instrument for convergence insufficiency; rather, it is useful for measuring the symptoms associated with visual discomfort caused by different factors. Accordingly, it considers the most common symptoms regarding near-vision problems 5 and provides similar scores in children with accommodative insufficiency and convergence insufficiency. 4 In addition, as described by Horan et al, 6 some patients with normal sensorimotor exam results were found to score high (i.e., showed a higher level of the assessed symptoms) on the CISS, while others with convergence insufficiency had relatively low scores.…”

Section: Introductionmentioning

confidence: 99%

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Spanish Cross-Cultural Adaptation and Rasch Analysis of the Convergence Insufficiency Symptom Survey (CISS)

González-Pérez

Pérez-Garmendia

Barrio

et al. 2020

Trans. Vis. Sci. Tech.

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To culturally and linguistically adapt the Convergence Insufficiency Symptom Survey (CISS) to Spanish and assess the psychometric performance of the new version through Rasch analysis and classical test theory methods. Methods: The Spanish version of the CISS (CISS VE) was completed by 449 subjects (9-30 years old) from the general population. The validity and reliability of CISS VE were assessed through Rasch statistics (precision, targeting, item fit, unidimensionality, and differential item functioning). To test construct validity, we calculated the coefficients of correlation between the CISS VE and the Computer-Vision Symptom Scale (CVSS17) or Warwick-Edinburgh Mental Well-Being Scale (WEMWBS). We determined test-retest reliability in a subset of 229 subjects. We used differential item functioning (DIF) to compare the CISSS VE and the CISS after administering the CISS to 216 English children. Results: After applying exclusion criteria, the responses of 420 participants (mean age, 18.62 years; female, 54.95%) revealed good Rasch model fit, good precision (person separation = 2.33), and suboptimal targeting (-1.37). There was some evidence of multidimensionality, but disattenuated correlations between the Rasch dimension and a possible secondary dimension were high, suggesting they were measuring similar constructs. No item bias according to gender or age was detected. Spearman's correlation was 0.34 (P < 0.001) for CISS VE-CVSS17 and non-significant for CISS VE-WEMWBS. The limits of agreement for test-retest reliability were 9.67 and-8.71. Rasch analysis results indicated no difference between CISS and CISS VE. Conclusions: According to our results, CISS VE is a valid and reliable tool for measuring the symptoms assessed by CISS in Spanish people 9 to 30 years of age. Translational Relevance: CISS VE can measure convergence insufficiency symptoms in Spanish-speaking subjects.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spanish Cross-Cultural Adaptation and Rasch Analysis of the Convergence Insufficiency Symptom Survey (CISS)

González-Pérez

Pérez-Garmendia

Barrio

et al. 2020

Trans. Vis. Sci. Tech.

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“…Researchers from the CITT group (Convergence Insufficiency Treatment Trial Investigator Group) have quantified the symptoms reported by patients with a questionnaire developed for this purpose, the CISS (Convergence Insufficiency Symptom Survey). This questionnaire has been validated for various populations, for different age-groups [11–14] and has been used regularly to help with diagnosis and to assess the effectiveness in treating the syndrome [4–6].…”

Section: Introductionmentioning

confidence: 99%

Convergence insufficiency and accommodative insufficiency in children

Nunes¹,

Monteiro²,

Ferreira³

et al. 2019

BMC Ophthalmol

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Purpose Convergence and accommodative insufficiency represent the main cause of complaints during close visual work and can reduce visual performance and comfort. Knowing their prevalence among schoolchildren is fundamental to define strategies for action. The purpose of this study was to estimate the frequency of these conditions in children in 5th and 6th school years in inland Portugal and to assess the impact that each visual condition has on their quality of life, based on the level of visual symptoms. Methods a cross-sectional study was carried out with children enrolled in the 5th and 6th school years. 372 children (192 girls) were assessed, with average ages of 10.9 ± 0.9 years. Refractive error and binocular vision assessment, integrating accommodative parameters, were used to analyse the visual condition. Symptoms were quantified using the Portuguese version of the CISS (Convergence Insufficiency Symptom Survey). Results The prevalence of definite Convergence Insufficiency (CI) in the children assessed was 2%. A prevalence of 6,8% could be considered if clinically significant CI (high suspect and definite categories) cases are accounted. In relation to Accommodative Insufficiency (AI), a frequency rate of 10% was recorded, with 3% of the evaluated children presenting AI and CI simultaneously. The symptoms score was higher in AI than in CI. Conclusions A frequency of approximately 10% was found for each one of the visual syndromes, and it was verified that visual discomfort is common among teenagers who carry these conditions. In cases of asthenopia, such as headaches and loss of concentration, associated with near vision activities, there is a requirement to evaluate the quality of binocular vision.

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“…The tool used to study the level of symptoms of the participants was the Portuguese version of the CISS questionnaire adapted from the original developed by the Convergence Insufficiency Treatment Trial group (CITT) [19]. This questionnaire is organized in 15 items in a Likert frequency scale, ranging from 0 (never) to 4 (always) with a total score ranging from 0 to 60.…”

Section: Ciss Questionnairementioning

confidence: 99%

Eye discomfort at close work in Portuguese university students: A comparative analysis between the pre-COVID and confinement period

Nunes

Leitão

Nunes

et al. 2023

WOR

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BACKGROUND: Many individuals experience visual symptoms associated with near work. The level of discomfort appears to increase with the amount of digital screen use. OBJECTIVE: To study the eye discomfort with near tasks in university students in the pre-COVID period and in the period of confinement due to the pandemic. METHODS: Two independent samples of students, aged between 18 and 35 years, were used to assess symptomatic behaviour with the Convergence Insufficiency Symptom Survey (CISS) questionnaire. In the pre-COVID period the sample had 342 participants, 64.6% females and in the COVID period 322 students participated, 71.4% females. The study of differences was carried out by the Mann-Whitney U test. The interpretation of the statistical inference was performed for a significance level≤0.05. RESULTS: There was an increase in the number of symptomatic cases in the COVID period without statistical evidence of differences in the frequency of symptoms reported in the two periods. The dimensions “somatic sensations” and “cognitive performance” were the typology of symptoms that most contributed to visual complaints with near vision. There was a significantly different symptomatic behaviour between genders in the period of confinement (p = 0.001), worsening in females and improving in males. CONCLUSION: These findings suggest that females and males exposed to digital environments, over time, may exhibit different symptomatic behaviour. Our results suggest that boys adapt more quickly than girls. Factors that predispose to these changes, aetiology and potential intervention actions still need further study.

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Translation and validation of Convergence Insufficiency Symptom Survey (CISS) to Portuguese - psychometric results

Cited by 9 publications

References 15 publications

Spanish Cross-Cultural Adaptation and Rasch Analysis of the Convergence Insufficiency Symptom Survey (CISS)

Spanish Cross-Cultural Adaptation and Rasch Analysis of the Convergence Insufficiency Symptom Survey (CISS)

Convergence insufficiency and accommodative insufficiency in children

Eye discomfort at close work in Portuguese university students: A comparative analysis between the pre-COVID and confinement period

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