T30 for Astigmatism in Digital Device Users
This study aims to determine if Total30 lenses for astigmatism can be successfully fit in participants who are heavy digital device users.
- EligibilityCriteria: Inclusion Criteria:  Adult (18- to 40-year-old) 0.00 LogMAR visual acuity or better in their habitual CLs or by manifest refraction in both eyes Smart phone with text messaging capabilities Existing wearers of soft, frequent replacement toric CLs within past 6 months Frequent digital device user (e.g., phone, iPad, computer, social media, video streaming, etc.) defined as at least 8 hours of usage per day Willing to follow the required wear schedule Astigmatism ranging from 0.75 D to 2.50 D in each eye Willing to wear their CLs at least 13 hours/day  Exclusion Criteria: Have known systemic health conditions that are thought to alter tear film physiology (e.g., Sjögren's syndrome).  Have a known history of being diagnosed with dry eye disease Have a history of ocular surgery within the past 12 months Have a history of severe ocular trauma, active ocular infection or inflammation Have a history of viral eye disease Currently using isotretinoin-derivatives or ocular medications Currently using a dry eye treatment including but not limited to artificial tears Currently using rewetting drops daily or occasionally If they are pregnant or breast feeding Need for spectacle add power of any amount (presbyopic) Currently wearing T30fA CLs Have a history of wearing hard CLs Subjects who show excessive lens oscillation with the T30fA lenses during the fitting process yet show 0.0 logMAR acuity, will be excluded from the study. Patients who report unstable vision while wearing their habitual or study CLs (e.g., rotational instability of CLs) Willing to not use any artificial tears or dry eye treatments during the study Willing to not use rewetting drops during the study - HealthyVolunteers: Accepts Healthy Volunteers - Gender: All - MinimumAge: 18 Years - MaximumAge: 40 Years - StdAgeList: Adult