Diagnostic values of questionnaires of Convergence Insufficiency Symptom Survey and College of Optometrists Vision Development Quality of Life in the screening of convergence insufficiency

To compare and analyse the diagnostic efficacy of the College of Optometrists Vision Development Quality of Life Questionnaire (COVD-QOL) and the Convergence Insufficiency Symptom Survey (CISS) in detecting convergence insufficiency and to compare their diagnostic value in clinical applications.