The Effect of Eyelid Margin Debridement on Contact Lens Discomfort

Inclusion Criteria: * Age of 18 years or above * Understand their rights as a research subject * Willing and able to sign a statement of informed consent * Normal ocular status, defined as a minimum of 20/40 visual acuity in each eye; clear corneas without scarring, opacities, or vascularization, as determined by biomicroscopic examination * Normal external examination * Normal puncta without punctal plugs * Ability to cooperate with the required procedures of diagnostic agent installation, eyelid eversion, and examination. * Contact lens wearers who have worn lenses for at least 6 months, used contact lenses for 3 weeks before the evaluation visit and used these lenses at least four times a week. These contact lens wearers will be on daily wearing modality, where the subject is supposed to wear it for at least for 6 hours, only during the day and remove the lenses during sleep. Exclusion Criteria: * Any ocular or systemic disease that might influence the tear film and especially subjects with a history of episodes of epilepsy. * Subjects with eyelid inflammation of more than grade 2 will be excluded from the study as they need therapeutic intervention. * All conjunctival abnormalities, including pingueculae greater than 1 mm in diameter, location closer than 2 mm to the limbus, or elevated more than 0.2 mm * All forms of conjunctivitis, including allergic conjunctivitis * Fluorescein corneal staining of grade 2 or more, after a single installation of non-preserved fluores…