None or not sure
100%
Out of the 12 reviews for the cap or diaphragm, 0 people (0%) reported discomfort wearing contact lenses.
Data is taken from self reported Lowdown user reviews
25% of the cap or diaphragm reviewers reported vaginal discharge
17% of the cap or diaphragm reviewers reported cystitis
8% of the cap or diaphragm reviewers reported vaginal dryness
8% of the cap or diaphragm reviewers reported thrush
0% of the cap or diaphragm reviewers reported nausea or vomiting