Symptoms Contact Lens Users (n=166) Non-contact lens users (n=461)
Dry eyes 122 (73.5%) 153 (33.2%)
Discomfort 104 (62.6%) 208 (45.1%)
Blurring of vision 97 (58.4%) 123 (25.5%)
Grittiness/scratchiness 88 (53.0%) 177 (38.3%)
Burning sensation/  stinging 58 (34.9%) 99 (18.6%)
Table 2: Comparison of frequency of dry eye symptoms in contact lens wearers and non-contact lens wearers.