Tangible Hydra-PEG: A Promising Solution for Scleral Lens Wearers With Dry Eye

Inclusion Criteria: * Reduced tear film break up time (TBUT), a sign of dry eye disease and contact lens discomfort * Scleral lens wearer (at least 8 hours per day for at least 5 days per week and have had their habitual lenses no longer than 1 year). Scleral lenses wear will be defined as 15.00 mm to 19.00 mm inclusive. Exclusion Criteria: * Disorders that affect sensitivity (herpetic disease, severe diabetes mellitus) * Anatomic variations of the conjunctiva that can impair proper scleral lens fitting * Pregnancy * Best corrected Snellen visual acuity worse than 20/30 in either eye * Ocular pathology other than dry eye (e.g. glaucoma, macular degeneration, keratoconus) which may significantly impact visual function.