Study Overview: This study is testing how well delefilcon A contact lenses fit. These are special types of contact lenses. The study will look at different lens sizes and shapes.

Participation Details: You will need to visit the office 4 times over about 3 days. Each visit will help researchers learn how the lenses fit your eyes.

Eligibility: You can join if you wear soft contact lenses in both eyes for at least 5 days a week and 6 hours each day. Your eye power should be between -2.00 and -4.00 diopters (a measure of lens strength). Your vision should be better than or equal to 0.10 logMAR, a vision clarity measurement.

• The study requires 4 office visits over 3 days.
• Participants must be regular contact lens wearers.
• Certain eye conditions might exclude you from participating.

Before joining, make sure you do not have any eye infections, diseases, or plan to have eye surgery. If you have had eye surgery before, you may not qualify. Other checks will be done to ensure safety.