healthy volunteers
Conditions
Interventions
Group A: blue-light alleviated desk lamp group
Group B: existing desk lamp group
Sponsors
Minamiaoyama Eye Clinic
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Subjects who meet all of the following criteria are included in this study. 1. subjects whose corrected visual acuity is 0.7 or higher 2. subjects who is aged from 16 to 22 at obtaining consent 3. male and female 4. Written consent form to participate in the study signed by subjects themselves after full explanation of this study and its ethical considerations. Minor subjects need additional written consent form signed by legal representative 5. subjects who can have the ophthalmological examinations at the day of the visual load tests according to the indication by the attending physicians
Exclusion criteria
Exclusion criteria: Subjects who fall into any of the following criteria are excluded from participating in the study. 1. subjects who uses glasses 2. subjects who have any anamneses or complications which could affect the results of the study, such as dry eye, ophthalmological surgery, eye inflammation including allergic reaction, ocular infection, glaucoma, keratoconus, and diabetes mellitus 3. subjects who use any eye drops, oral medicines or dietary supplements whose objective are to alleviate visual fatigue or symptoms of eye diseases 4. subjects who were considered inappropriate to participate in this study by physicians
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| change on critical flicker frequency (CFF) from before to after the visual load test | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. change on ocular accommodation response from before to after the visual load test 2. change on accommodative microfluctuations from before to after the visual load test 3. change on visual acuity from before to after the visual load test 4. change on manifest refraction from before to after the visual load test | — |
Countries
Japan
Contacts
Public ContactHiroki Takayama
Soiken Inc. Clinical Study Support Division
Outcome results
None listed