None listed
Conditions
Interventions
Medical Device : healthy adults without any ophthalmic disease history were asked to watch the documentary movie, using two different sizes of smart devices
smartphones and tablets. Before and after using the device, the near point accommodation (NPA) and the near point convergence (NPC) waere measured, and objective accommodation was measured using an au
Sponsors
Chung-Ang Univerisity Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Among the participants, only those who had no history of ocular disease except correctable refractive error and were able to use smart devices were included, aged 19 to 40 years old
Exclusion criteria
Exclusion criteria: patients who were unable to use smart devices due to other problems. Patients who had undergone operations other than refractive surgery were also excluded, and there were no restrictions related to astigmatism.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| accommodation (For the evaluation of accommodative function, the near point of accommodation (NPA), near point of convergence (NPC), accommodative responses to each stimulus at different distances were measured before and after using each smart device. | — |
Secondary
| Measure | Time frame |
|---|---|
| subjective ocular discomfort (Ocular discomfort was assessed using a validated Korean version of questionnaire, ODAS (ocular discomfort analog scale) | — |
Countries
Korea, Republic of
Contacts
Public ContactNamJu Moon
Chung-Ang Univerisity Hospital
Outcome results
None listed