The Health-Related Quality of Life of the Patients With Symptomatic Convergence Insufficiency

Study Overview
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Brief Summary
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This trial is an observational cohort study. Patients aged 8-15 years with symptomatic convergence insufficiency and 150 patients with symptomatic convergence insufficiency who had not received visual training were selected from the Tianjin Eye Hospital Optometry Center and received 1 course of visual training treatment. Self-assessment and other assessments were combined, and the patient and guardian questionnaires were collected. The EQ-5D-Y and CHU9D scales were used to evaluate Chinese patients' health-related quality of life with symptomatic convergence insufficiency. The feasibility of the EQ-5D-Y and CHU9D scales in assessing the health-related quality of life of Chinese patients with symptomatic convergence insufficiency was analyzed. To assess the effectiveness of visual training on visual symptoms and improvement of quality of life in patients with symptomatic convergence insufficiency

Official Title
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The Health-Related Quality of Life of the Patients With Symptomatic Convergence Insufficiency

Conditions
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Myopia, Convergence Insufficiency

Intervention / Treatment
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* Behavioral: Visual training in hospital


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 8 15 years old Monocular best corrected visual acuity at distance and near was more than 0.8 Near exophoria 4Δ greater than distance exophoria NPC ≥ 6cm PFV ≤15△BO Stereogram ≤500 '' Score of CISS questionnaire ≥16 or COVD questionnaire≥20 Exclusion Criteria: present constant strabismus, nystagmus or vertical phoria at distance or near. developmental delay or ocular surgery Myopia≤ -6.00D, Hyperopia ≥ +5.00D, Astigmatism ≥ 4.00D Monocular Amplitude of accommodation<5D Other diseases except myopia

Ages Eligible for Study
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Minimum Age: 8 Years
Maximum Age: 15 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Training group<br>Patients with symptomatic convergence insufficiency who had received visual training | Behavioral: Visual training in hospital<br>* Completion of 1 session of standardized visual training<br>|
| Not training group<br>Patients with symptomatic convergence insufficiency who had not received visual training | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Changes in EuroQol five dimensions questionnaire(EQ-5D-5L) score | The EQ-5D-5L questionnaires were used to evaluate the quality of life scores of myopic patients.The health utility value can be calculated by the number of the answer to the question. 0 means death and 1 means complete health. | The changes between baseline and 3 months | 
| Changes in shortForm 6D(SF-6D) questionnaire score | The SF-6D questionnaires were used to evaluate the quality of life scores of myopic patients.The health utility value can be calculated by the number of the answer to the question. 0 means death and 1 means complete health. | The changes between baseline and 3 months |