Tinted Contact Lense
Conditions
Brief summary
Investigators planned to investigate changes in visual function after wearing decorative tinted soft contact lenses with different pigment-free optical zone diameters.
Interventions
DEVICEEyeLIKe Callamatch II, Koryo Eyetech Co, Seoul, Korea
tinted contact lens, daily-wear tinted lens
DEVICEEyeLIKe Shine, Koryo Eyetech Co
clear lens
Sponsors
Yonsei University
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* normal subject * aged above 20 years old
Exclusion criteria
* subject who had a history of ocular diseases, such as ocular infection, ocular allergy, and autoimmune disease, * patients with continuous use of topical ocular medications before surgery, or histories of ocular surgery or ocular injury.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| score of best-corrected visual acuity (BCVA) | 1 day |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Total score of ocular higher-order aberrations | 1 day | ocular higher-order aberrations measured by iTrace (Tracey Technologies, Houston, Texas, USA; software V.4.1.0) |
| contrast sensitivity with tinted lense | 1 day | contrast sensitivity measured by Optec 6500 test system (Stereo Optical Co, Chicago, Illinois, USA) at five spatial frequencies (1.5, 3, 6, 12 and 18 cycles/degree (cpd)) under photopic (luminance value of 85 candelas/square metre (cd/m2)) and mesopic conditions (target luminance value of 3 cd/m2) with or without glare after wearing clear lens and tinted lenses with different pigment-free optical zone diameters (4, 5 and 6 mm). |
Countries
South Korea
Outcome results
None listed