myopia
Conditions
Interventions
1:Complete the 5 m distance combined full field myopia defocus (3D) character reading task for 20 minutes through the distant screen
2:Five meters distance combined with full field myopic defocus (3D) and blue light stimulation were achieved through the distant screen, and complete the character reading task for 20 minutes
3:Five meters distance combined with myopic defocus (3D) out of 10 degree field and blue light stimulation were achieved through the distant screen, and complete the character reading task for 20 minu
4:Through the traditional electronic light screen to achieve the near (33cm) character reading task for 20 minutes
Sponsors
Beijing Tongren Hospital, Capital Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: (1) age range:18-40 years old (2) best-corrected visual acuity 0.20 logMAR or better in both eyes (3) astigmatism of 1.50 D or less in both eyes (4) anisometropia 1.50 D or less in both eyes (5) refractive error of spherical equivalent range of 0.50 D to -6.00 D in both eyes
Exclusion criteria
Exclusion criteria: (1) combined ocular diseases (eg, amblyopia, strabismus, corneal scar, cataract, glaucoma, retinal disease, uveitis, or ocular tumor) (2) history of systemic disease: immune system disease, abnormality of circulatory system, respiratory system, and hepatorenal function (3) introcular pressure?21mmHg, or introcular pressure difference in both eyes?5mmHg (4) use of anti-myopic therapy within the last 1 month, such as rigid orthokeratoscope, multifocal soft contact lens glasses, functional frame glasses, atropine or perenxil (5) unable to complete the clinical trial
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| choroidal thickness;axial length;choroidal vascularity index; | — |
Secondary
| Measure | Time frame |
|---|---|
| visual acuity;anterior chamber depth;lens thickness;uncorrected visual acuity; | — |
Countries
China
Contacts
Public ContactNINGLI WANG
Beijing Tongren Hospital, Capital Medical University
Outcome results
None listed