This is the first validated questionnaire in the Chinese language designed to evaluate ocular symptoms in a Chinese population. The OCI-C was translated from the original Ocular Comfort Index and validated using both Rasch and conventional analysis. Chao C, Golebiowski B, Cui Y, Stapleton F. Deveopment of a Chinese version of the Ocular Comfort Index. IOVS 2014.
1. Complete the OCI-C
2. Calculate total score using the OCI calculator
3. Convert the total score obtained from the OCI calculator using the conversion table provided in 1.