healthy human volunteers belonging to the target population of the intervention Binocular vision
Conditions
Interventions
Appointment 1: Screening Activities and Eye Examination with Ophthalmic lenses
Screening Activities
Medical history taking
Screening for refractive errors by performing:
Subjective refraction using a
Experimental Procedure/Surgery,Experimental Procedure/Surgery
Ophthalmic lenses,Contact lenses
Sponsors
None listed
Eligibility
Sex/Gender
All
Age
18 Years to 35 Years
Inclusion criteria
Inclusion criteria: Group 1: Non-myopic anisometropia (Both eyes myopic but not different from each other) 1. Male and female participants aged between 18 and 35 years, 2. Volunteers with myopia ranging from -0.75 to -6.00 D (diopter), 3. Volunteers with astigmatism not exceeding -1.50 D, 4. Volunteers whose spherical equivalent refraction (SER), after astigmatism compensation, differs between the right and left eye by less than -1.00 D, 5. Volunteers who have never used or have used eyeglasses and/or contact lenses regularly, 6. Volunteers who can communicate in and understand the Thai language, 7. Volunteers who willingly participate in the project and sign the informed consent form Group 2: Myopic anisometropia (Both eyes having different degrees of myopia) 1. Male and female participants aged between 18 and 35 years, 2. Volunteers with myopia ranging from -0.75 to -6.00 D (diopter), 3. Volunteers with astigmatism not exceeding -1.50 D, 4. Volunteers whose spherical equivalent refraction (SER), after astigmatism compensation, differs between the right and left eye by less than -1.00 D, 5. Volunteers who have never used or have used eyeglasses and/or contact lenses regularly, 6. Volunteers who can communicate in and understand the Thai language, 7. Volunteers who willingly participate in the project and sign the informed consent form
Exclusion criteria
Exclusion criteria: 1. Individuals with strabismus (crossed eyes or eye misalignment), 2. Individuals experiencing vertigo or dizziness, based on medical history obtained from the volunteer 3. Individuals with a history of eye surgery, 4. Individuals with diseases that affect vision, such as diabetes, bacterial eye infections, viral eye infections, keratitis, glaucoma, cataracts, etc., except amblyopia (lazy eye) 5. Individuals with abnormal eye conditions requiring caution when wearing contact lenses, such as pterygium, pinguecula, red eye, history of reduced corneal sensitivity, severe dry eye, incomplete blinking, etc. 6. Individuals who are unwilling to provide information
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Accommodation system immediatly post-intervention Accommodation values | — |
Secondary
| Measure | Time frame |
|---|---|
| Binocular vision system immediatly post-intervention Binocular vision values | — |
Countries
Thailand
Contacts
Public ContactSattaporn Weawsiangsang
AHS NU
Outcome results
None listed