View clinical trials related to Ametropia.
Filter by:This is a prospective, comparative, randomized, controlled, open-label, single-surgeon, single-center PMCF clinical study whereby presbyopic patients undergoing refractive surgery will receive a SUPRACOR treatment for the correction in the non-dominant eye and a PROSCAN refractive treatment in the dominant eye to correct for ametropia. The participants will be randomized to either a SUPRACOR regular (100%) or SUPRACOR strong (130%) treatment with a 1:1 ratio.
The primary objective of this study is to evaluate the overall performance of an investigational silicone hydrogel lens when compared to ACUVUE OASYS® with HYDRACLEAR® PLUS (AOHP).
Main objective Show that the equivalent sphere refraction measurements obtained by the SiVIEW software have no significant clinical difference with those obtained by an optometrist expert. Secondary objectives Show that the sphere refraction measurements obtained by the SiVIEW software have no significant clinical difference with those obtained by an optometrist expert. Show that the cylinder refraction measurements obtained by the SiVIEW software have no significant clinical difference with those obtained by an optometrist expert. Show that the visual acuity measurements obtained by the SiVIEW software do not have a significant clinical difference with those obtained by an optometrist expert. Demonstrate that the report delivered for each eye exam by SiVIEW software is consistent and relevant to a vision health practitioner. Show that the differences obtained between two eye examination experts are consistent with those found in the literature.
This subject-masked, randomized, bilateral crossover study will compare the clinical performance and subjective acceptance of the somofilcon A 1 day soft contact lens with the nelfilcon A daily disposable lens when used on a daily wear, daily disposable basis.
The aim of this work is to investigate the clinical performance and subjective acceptance of the comfilcon A asphere contact lens when compared to single-vision spectacles in subjects who have never worn contact lenses and who use digital devices (such as phones, tablets, laptops, desktop computers) for at least 4 hours per day on at least 5 days per week.
The aim of this prospective study is to evaluate the clinical performance of habitual wearers of methafilcon A toric lenses after a refit with fanfilcon A toric lenses for 1-month of daily wear.
The aim of this prospective study is to evaluate the clinical performance of habitual wearers of methafilcon A aspheric lenses after a refit with fanfilcon A sphere lenses for 4 weeks of daily wear.
This clinical trial will document the feasibility of the Apioc lens design by assessing which lens shape parameters yield successful on-eye-fit and movement of the Apioc contact lens design and evaluate the subjectively-reported comfort of the Apioc contact lens design.
This is a single-site, two-visit, contralateral, non-dispensing, randomized, controlled and subject-masked study to measure potential benefits of the new UV blocker.
This is an unmasked, non-randomized, single arm, stratified, dispensing investigation of symptomatic and asymptomatic subject populations. Subjects will be assigned to a single study lens type to be worn bilaterally for approximately 4 weeks followed by no contact lens wear for 1 week.