Performance of Red Tinted Contact Lenses on Colour Defects (CL)
Color Vision Defects, Color Blindness
About this trial
This is an interventional device feasibility trial for Color Vision Defects focused on measuring Anomalous Trichromats, Color Vision Defect, Contact Lenses
Eligibility Criteria
Inclusion Criteria: Age range 18-40 years all sex color defect diagnosed with Ishihara Test no contraindication in contact lens wear Exclusion Criteria: have ocular and systemic diseases
Sites / Locations
- Optometry Clinic
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Active Comparator
Active Comparator
Active Comparator
Active Comparator
TES and performance assessment with Type A Red Tint Lens
TES and performance assessment with Type B Red Tint Lens
TES and performance assessment with Type C Red Tint Lens
TES and performance assessment with Type D Red Tint Lens
6 subjects will be inserted with the Type A red Tint Lenses. Only the non dominant eye will be inserted. The comparison is made before and after wearing the CL.
6 subjects will be inserted with the Type B red Tint Lenses. Only the non dominant eye will be inserted. The comparison is made before and after wearing the CL.
6 subjects will be inserted with the Type C red Tint Lenses. Only the non dominant eye will be inserted. The comparison is made before and after wearing the CL.
6 subjects will be inserted with the Type D red Tint Lenses. Only the non dominant eye will be inserted. The comparison is made before and after wearing the CL.