N/A N=16 Evaluating Contact Lens Optics
Myopia
Primary: Visual Performance — 0.23; 0.38 logMAR
Clinical Trial Search
Completed trials with posted results — search by concept, filter by the parameters that matter at the bedside.
Phase 2 N=42 Dilated Versus Non-Dilated Wavefront Corrections for Patients With Down Syndrome
Down Syndrome · Refractive Errors
Primary: Distance Visual Acuity — 0.41; 0.41; 0.40; 0.43 logMAR — p=0.92
N/A N=25 Measurement of Refractive SE Following Implantation of LS313 MF30 IOL
Refractive Errors
Primary: Evaluation of the Most Precise Method for Measuring Post-operative Refraction Following Implantation of the Asymmetric Multifocal LS-313 MF30 — 0.36; 0.27; -0.81; -0.78…
N/A N=230 Study of a Hand-held Device Plus Mobile App Versus Standard Eye Care Devices in Measuring Refractive Error of the Eye
Refractive Errors · Astigmatism
Primary: BVCA Utilizing Refraction Results From Handheld Device Compared to Manual Refraction Methods for the Age Stratum 45 Through 65 Years — 0.06; 0.02; 0.03 logMAR
N/A N=83 Accommodation Disorders
Accommodative Insufficiency · Ill-sustained Accommodation
Primary: Accommodation Lag 5D — 0.9 diopters
N/A N=150 Optimizing the Assessment of Refractive Outcomes After Cataract Surgery
Cataract
Primary: IOL A-constant at 3 Months at Each Site — 119.23; 119.18; 118.86; 118.93 unitless
N/A N=100 Evaluation of a Night Spectacle Correction Concerning an Improvement of Mesopic Vision Quality
Myopia-Night Blindness
Primary: Night Myopia — -0.30; -0.32 D
N/A N=10 Early Feasibility Study to Evaluate the AccuraSee in Correcting Residual Refractive Errors After Cataract Surgery
Refractive Errors
Primary: Subjects With Stable Manifest Refraction Spherical Equivalent (MRSE) — 7 Subjects
N/A N=30 Spectacles for Patients With Down Syndrome
Vision, Low
Primary: Adapted Visual Acuity — 0.256; 0.440; 0.356; 0.284 logMAR — p=0.341
N/A N=35 Enhancement of Emmetropization in Highly Hyperopic Infants
Hyperopia
Primary: Central Cycloplegic Refractive Error With Retinoscopy — 1.6; 1.2; 2.8 Diopters
Phase 4 N=119 Clinical Investigation of the Vision-R800 Device.
Myopia · Hyperopia · Astigmatism
Primary: Subjective Questionnaire Response — 22; 32; 5; 3 Participants
N/A N=205 Comparing Low-cost Handheld Autorefractors - a Practical Approach to Measuring Refraction in Low Resource Settings
Myopia · Hyperopia
Primary: Accuracy of Assessment of Participants' Best Visual Acuity (in Diopters) — 0.685; -0.416; -0.039 Diopters
N/A N=448 Safety and Suitability of ICL for Correction of Refractive Errors Without the Use of Dispersive OVDs
Refractive Errors · Myopia · Myopic Astigmatism
Primary: Unaided Visual Acuity After the Procedure — 0.264; 0.227 LogMar vision
N/A N=146 Observational Study of Optical Correction for Strabismic Amblyopia in Children 3 to <7 Years Old
Amblyopia
Primary: Mean Amblyopic Eye Visual Acuity Improvement With Spectacles — 2.3; 3.2 logMAR units
Phase 3 N=118 Correction of Myopia Evaluation Trial 2
Myopia
Primary: Distribution of Change in Spherical Equivalent Refractive Error From Baseline to 3 Years — 6; 3; 11; 8 participants
N/A N=31 Evaluation of Binocular Visual Acuity and Refractive Stability in the Alcon Clareon Intraocular Lens
Cataract
Primary: Refractive Stability — 0.03 Diopters (D)
Phase 4 N=132 Presbyopia-Correcting Intraocular Lenses (IOLs)
Cataract
Primary: Best Corrected Visual Acuity — -0.075; -0.080; -0.081; 0.227 logMAR
N/A N=79 Patient Perception of Visual Distortions
Cataract · Astigmatism
Primary: Visual Distortion Symptoms — 0.89; 0.38; 0.64; 0.38 rating of visual distortion symptoms
N/A N=69 Safety and Effectiveness of Wavefront-Guided LASIK Correction of Hyperopic Refractive Errors
Hyperopia
Primary: Number of Eyes With a Loss of >2 Lines for Best Spectacle Corrected Visual Acuity (BSCVA) — 2 eyes
Phase 3 N=170 Safety and Effectiveness of Wavefront-Guided LASIK Corrections of Myopic Refractive Errors
Myopia
Primary: Percentage of Eyes With Loss of More Than 2 Lines Best Spectacle Corrected Visual Acuity (BSCVA) — 0 percentage of eyes
N/A N=249 Hyperopia Treatment Study 1 (HTS1) - Glasses vs Observation
Hyperopia
Primary: Number of Participants With Confirmation of Failure Criteria — 5; 4; 11; 18 Participants — p=0.72
N/A N=53 Quantification of the Visual Benefits of Soft Toric Contact Lenses Compared to Soft Spherical Contact Lenses
Astigmatism
Primary: Visual Acuity — 0.2 logMAR
N/A N=40 CLARITI (TM) 1-Day Multifocal Contact Lenses Performance and Acceptance Evaluation
Presbyopia Correction
Primary: Distance LogMAR Visual Acuity — -0.466; -0.972; -2.842; -3.768 LogMAR
N/A N=29 Evaluating Refractive and Visual Outcomes With the Alcon Toric ReSTOR +2.5 and +3.0 Models
Cataract
Primary: Residual Refractive Cylinder — 0.02 diopters
N/A N=72 Ocular Comfort and the "Aging" Lens (ERBIUM)
Refractive Error
Primary: Phase 3: Ocular Comfort, Lens Age 1 Day, Hour 1 — 76; 88 Units on a scale
N/A N=62 Clinical Evaluation of a Reusable Multifocal Optical Design in a Presbyopic Population
Visual Acuity
Primary: CLUE Vision — 57.1 units on a scale
N/A N=28 Evaluation of On-eye Optical Performances of the RMY-100 Lens
Visual Acuity
Primary: Distance Spherical Aberration (Z4, 0) — 0.350; 0.364 micron
N/A N=30 Tolerance to Residual Astigmatism in Eyes With Vivity®
Lenses, Intraocular
Primary: Distance Against the Rule Astimatism — 0.01 LogMAR
N/A N=102 Retardation of Myopia in Orthokeratology
Myopia
Primary: Axial Elongation in the Study and Control Subjects Who Completed the Two Years Study — 0.36; 0.63 mm
N/A N=10 Evaluation of Surface Refractive Index Shift of Kalifilcon A Lenses Compared to Dailies Total 1, Precision 1 and Biotrue ONEday Lenses
Habitual Soft Contact Lens Use
Primary: Surface Refractive Index Shifts at 5 Minutes — 1.4102; 1.4251; 1.4188; 1.3788 No units