The Impact of Soft Contact Lens Attributes on Symptoms Associated With Digital Eye Strain in Symptomatic Soft Contact Lens Wearers

Inclusion Criteria:

1. Self-reported "eye fatigue" at least once per week attributable to digital device use
with baseline.

2. Uses a digital device (phone, tablet, computer, etc) at least 4 hours per day

3. Mobile digital device with active data and text plan, able to receive email and text
messages

4. Habitual 2-week or monthly silicone single vision hydrogel soft contact lens use;
habitually wearing lenses for 6 or more hours per day for 5 or more days per week for
the past 30 days

5. Habitual soft contact lens prescription optimized over-refraction within ±0.25 D

6. 18-35 years of age

7. The subject must appear able and willing to adhere to the instructions set forth in
this clinical protocol.

8. Vertex corrected refractive cylinder must be -0.75 or less.

9. Visual acuity best correctable to 20/25 or better for each eye

10. The subject must read and sign the Informed Consent form.

Exclusion Criteria:

1. A habitual wearer of any of the test lenses

2. Any active conditions that may prevent soft contact lens wear.

3. Any doctor diagnosed, self-reported ocular surface disease or dry eye requiring
regular, ongoing treatment

4. Any doctor diagnosed, self-reported accommodative or binocular vision issues

5. History of issues of eye alignment or binocularity by self-report