View clinical trials related to Astigmatism.
Filter by:The objective of this orthokeratology study is to evaluate the safety and effectiveness of the Arise Orthokeratology Lens with non-spherical posterior peripheral curves
The primary objective of this study is to evaluate the axis orientation of LID226397 toric contact lenses.
To subjectively evaluate wearing experience in the T30fA lens among subjects who were already satisfied with their Biofinity Toric lenses.
The objective of the study is to compare the clinical performance of two monthly toric silicone hydrogel contact lenses in habitual wearers, when worn for 1-month each.
The objective is to compare the percentage of monocular UDVA -0.1 logMAR (20/16) outcomes for each planning strategy (Phorcides and manifest refraction) at the 3-month post operative visit.
The objective is to determine the percentages of past toric CL wearers (who dropped out of contact lens wear due to dissatisfaction with comfort or vision) who are satisfied with the comfort and vision of DT1fA contact lenses.
Subjects will undergo SMILE surgery in one eye and LASIK using Contoura with Phorcides on the contralateral eye to correct myopia.
To evaluate the efficacy, safety and accuracy of Contoura topography-guided LASIK & PRK in comparison to Wavefront optimized LASIK & PRK in virgin eyes with astigmatism.
The purpose of this study is to compare the fit characteristics between four Alcon commercially available toric contact lenses.
This study is to evaluate the patient subjective experiences of two daily disposable toric contact lenses.