Visual Health Evaluation of Natural Color Display Technology

Capital Medical University

Status: Completed

Conditions: Chromatic Adaptation

Treatments: Other: The automatic color temperature adjustment mode equipped on terminal display devices can reduce the discrepancy between the color temperature of the device and the ambient light.

Study type: Interventional

Funder types: Other

Identifiers

NCT06394102

TREC2023-KY120

Details and patient eligibility

About

Study on visual fatigue and visual function under changing ambient light color temperature by natural color mode: The influence of electronic display devices on visual fatigue of human eyes is the main evaluation index and the main outcome index of this experiment. Secondary outcome indicators were visual function indicators such as regulation and aggregation. There are other outcome measures: effective reading efficiency, blink detection, retinal fundus blood flow. The baseline values of the above indicators were respectively measured, and then the specific values of different indicators when the natural color mode was enabled and not enabled were collected under the changing ambient light color temperature, and the baseline values were statistically compared and analyzed. Evaluate the effect of natural color patterns on the relief of visual fatigue and on visual function.

Enrollment: 24 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. Adult population, regardless of gender
2. Refractive error is less than or equal to -2.5D and both eyes achieve corrected visual acuity of 0.8 or higher.
3. Normal intraocular pressure with no organic pathology.
4. No apparent symptoms of dry eye.
5. Willing to cooperate to complete all the tests.
6. Voluntarily signing the informed consent form.

Exclusion criteria

• 1: Individuals with strabismus and amblyopia exist.

  2: Suffering from congenital eye conditions such as congenital cataracts or congenital retinal diseases.

  3: Those who have undergone intraocular surgery (such as cataract removal, intraocular lens implantation, etc.).

  4: Individuals with refractive media opacity (such as corneal lesions, lens opacity, etc.).

  5: Abnormal intraocular pressure (IOP) (IOP < 10 mmHg or IOP > 21 mmHg, or a bilateral IOP difference of ≥5 mmHg).

  6: Only one eye meets the inclusion criteria.

  7: Active corneal infections such as bacterial, fungal, viral, or other acute or chronic anterior segment inflammations.

  8: Currently using medications that may lead to dry eye or affect vision and corneal curvature.

  9: Other ocular conditions, such as dacryocystitis, eyelid disorders and abnormalities, abnormal intraocular pressure, and glaucoma.

  10: Unable to undergo regular eye examinations.

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Single Group Assignment

Masking: Single Blind

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24 participants in 2 patient groups

A Group

Experimental group

Description:

Is a group that accepts natural color mode processing and then accepts natural color mode closing. In this group, subjects will first be exposed to an environment using a natural color pattern, which applies a specific light source to adjust the color temperature of the ambient light, and the phone color temperature will change with the ambient light color temperature. To evaluate the effects of natural color patterns on visual fatigue and visual function, including but not limited to measures of adjustment function, assembly function, reading efficiency, blink detection, and retinal fundus blood flow.

Treatment:

Other: The automatic color temperature adjustment mode equipped on terminal display devices can reduce the discrepancy between the color temperature of the device and the ambient light.

B Group

Experimental group

Description:

Is the group that accepts the natural color mode off first, and then accepts the natural color mode on. In group B, the subjects will first be in the condition of changing ambient light, and the color temperature of the phone will not change with the ambient light color temperature. Then the experiment was performed on different days to open the natural color mode. The aim is to provide a benchmark against which to compare the effects of natural color pattern treatment in the experimental group.

Treatment:

Other: The automatic color temperature adjustment mode equipped on terminal display devices can reduce the discrepancy between the color temperature of the device and the ambient light.