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Ametropia clinical trials

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NCT ID: NCT06408649 Not yet recruiting - Myopia Clinical Trials

Post-market Clinical Follow-up Study of Alcon TOTAL30® Contact Lenses (Lehfilcon A)

Start date: August 2024
Phase:
Study type: Observational

The purpose of this Post-Market Clinical Follow-Up (PMCF) study is to continuously assess the visual performance and safety of TOTAL30 Sphere and TOTAL30 for Astigmatism contact lenses in a real-world setting across a broad variety of patients through routine clinical practices.

NCT ID: NCT06400914 Active, not recruiting - Ametropia Clinical Trials

Clinical Evaluation of Biomedics Monthly Sphere and Avaira Vitality Sphere

Start date: April 2, 2024
Phase: N/A
Study type: Interventional

The aim of this study is to compare the short-term clinical performance of two sphere contact lenses.

NCT ID: NCT06295536 Not yet recruiting - Ametropia Clinical Trials

Optimization of a Photoretinoscopy Method for Determining the Objective Refraction of Children

Start date: March 2024
Phase: N/A
Study type: Interventional

The objective is to compare the refractive parameters of the photorefraction prototype device without cycloplegia with the refractive parameters of reference device, an autorefractometer with and without cycloplegia.

NCT ID: NCT06165627 Completed - Astigmatism Clinical Trials

Comparison of Clinical Performance of Two Monthly Replacement Toric Soft Contact Lenses

Start date: January 23, 2024
Phase: N/A
Study type: Interventional

The purpose of this study is to assess the clinical performance of TOTAL30 for Astigmatism (T30fA) soft contact lenses with Biofinity Toric soft contact lenses.

NCT ID: NCT05959200 Completed - Myopia Clinical Trials

Clinical Performance Evaluation of Two Frequent Replacement Silicone Hydrogel Toric Contact Lenses

Start date: August 14, 2023
Phase: N/A
Study type: Interventional

The primary objective of this study is to evaluate the axis orientation of LID226397 toric contact lenses.

NCT ID: NCT05957458 Completed - Myopia Clinical Trials

Myopia Control With Three Lever Irradiance of PBM Therapy in Children and Adults

MCPT
Start date: January 1, 2021
Phase: N/A
Study type: Interventional

Photobiomodulation therapy, that is, Low-level red-light technology provides a new and innovative myopia control approach. This strategy enables relatively high energies of light to be delivered at much shorter durations of exposure to induce the myopia control effect. The efficacy of the low-level red-light technology has been proven in a Chinese populationb for the recent 3 years with evidence based papers and amazing results. However, there's not yet evidence to demonstrate the relationship between the dose response effect of photobiomodulation therapy on myopia control at the different age lever.

NCT ID: NCT05516082 Completed - Ametropia Clinical Trials

Clinical Evaluation of Two Daily Disposable Lenses in Sphere Design

Start date: August 8, 2022
Phase: N/A
Study type: Interventional

This was a single-blind, interventional, prospective, direct refit, bilateral wear, fixed-sequence crossover study.

NCT ID: NCT05483127 Completed - Myopia Clinical Trials

Clinical Comparison of Two Daily Disposable Toric Soft Contact Lenses

Start date: September 13, 2022
Phase: N/A
Study type: Interventional

The primary purpose of this study is to demonstrate noninferiority in the visual acuity at distance when wearing PRECISION1™ for Astigmatism (P1fA) soft contact lenses compared to another commercially available, soft toric contact lens, MyDay® toric (MDT).

NCT ID: NCT05166902 Completed - Ametropia Clinical Trials

Evaluation of Monthly Replacement Lenses in Habitual Soft Contact Lens Wearers Who Report Frequent Digital Devise Use

Start date: January 31, 2022
Phase: N/A
Study type: Interventional

To evaluate the clinical performance of two monthly silicone hydrogel contact lenses in habitual wearers of frequent replacement (FRP) lenses when worn for 1-month.

NCT ID: NCT05010512 Completed - Myopia Clinical Trials

Clinical Performance of Two Commercial, Daily Disposable Contact Lenses

Start date: August 31, 2021
Phase: N/A
Study type: Interventional

The purpose of this study is to compare the clinical performance of DAILIES TOTAL1 ( DT1) contact lenses with Infuse contact lenses.