An interventional study of , silicone hydrogel (lehfilcon A) soft contact lens (CL) with SMARTSURFACE Technology and UV protection in Eye, Astigmatism and Contact Lenses, sponsored by Southern College of Optometry. Active, not recruiting at 1 site in United States. Open to participants aged 18 Years to 40 Years. Per ClinicalTrials.gov, last updated 2026-11-04.
Sponsored by Southern College of Optometry · Not applicable, Interventional, and Other
This study aims to determine if participants who are currently wearing Max1day contact lenses can successfully be refit into P1 for astigmatism contact lenses.
This one month 4 visit study will determine if participants who are current Max1day contact lens wearers are able to be refit into P1 for astigmatism contact lenses. P1 Toric contact lenses are designed to promote stable Toric axis during wear. This stands to benefit daily disposable contact lens wearers who have astigmatism. Because this technology is relatively new there is currently a lack of literature regarding comfortability and wear during the day. Therefore, this study aims to determine if current wearers of Max 1day contact lenses can be refit into the new P1 Toric contact lenses.
417 studies on the registry are indexed under Astigmatism; 50 are open to participants now.
This study's planned enrollment of 32 is below the median of 55 across 325 interventional studies indexed under Astigmatism.
Browse Astigmatism studies →Southern College of Optometry is the lead sponsor of 18 studies on the registry; 10 are open to participants now.
Of its 7 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
Counted across the registry records on this site, refreshed daily.
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Exclusion Criteria:
Participants will be refit and provided with P1 toric contact lenses.
Device: , silicone hydrogel (lehfilcon A) soft contact lens (CL) with SMARTSURFACE Technology and UV protection
This soft contact lens was designed specifically for those with astigmatism and providing maximum comfort and effectiveness of the lenses.
Also known as: P1 Toric Contact lenses
Proportion of participants who have satisfied Contact Lens Dry Eye Questionnaire-8 (CLDEQ-8) scores (scores <12).
The Contact Lens Dry Eye Questionnaire-8 (CLDEQ-8) is a comfort survey with a 0-37 range with lower scores being better. The proportion of study participants who have scores \<12 will be reported.
Time frame: 1 month
Likert survey
1. Likelihood of continuing to wear the study CLs. 2. Overall satisfaction while wearing the study CLs. 3. Overall vision while wearing the study CLs. 4. End of day comfort while wearing the study CLs. 5. End of day vision while wearing the study CLs. 6. Overall comfort while wearing the study CLs. 7. Ability to play sports and perform fitness actives while wearing the study CLs. 8. Ability to use digital devices while wearing the study CLs. 9. Would recommend the study CLs to a friend
Time frame: 1 month
Likert Scale
Frequency of participants who have positive VAS scores based upon a ±50 VAS (end of day comfort; clarity of vision).
Time frame: 1 month
Started May 2026 (actual). Primary completion is estimated for Nov 2026, 5 months after the start.
Of 77 non-industry interventional studies with no phase under Astigmatism, half reached primary completion within 18 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 48. This study's planned 5 months is below that.
Counting every sponsor, half of 183 studies reached it within 12 months; a quarter within 4 and three quarters within 26.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is active, not recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
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Southern College of Optometry