Myopia management using contrast management spectacle lenses Eye Diseases
Conditions
Interventions
Novel spectacle Diffusion Optic Technology (DOT) lenses from SightGlass Vision (SGV) have shown the ability to control the progression of myopia in children. These lenses contain contrast-reducing seg
Sponsors
SightGlass Vision
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Has had a self-reported oculo-visual examination in the last two years 2. Is at least 18 years of age and has full legal capacity to volunteer 3. Has read and understood the informed consent letter 4. Is willing and able to follow instructions and maintain the appointment schedule 5. Is correctable to a visual acuity of 20/40 or better (in each eye) with their habitual vision correction or 20/20 best-corrected 6. Is willing and able to wear contact lenses in the office for testing 7. Spectacle cylinder less than -0.75DC 8. Has clear corneas and no active ocular disease 9. Can tolerate having one eye covered and study procedures
Exclusion criteria
Exclusion criteria: 1. Has any systemic disease affecting their ocular health 2. Is using any systemic or topical medications that will affect their ocular health 3. Has any ocular pathology or severe insufficiency of lacrimal secretion (moderate to severe dry eyes) that would affect clear vision when wearing spectacle lenses 4. Is aphakic
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Contrast sensitivity measured using the FrACT test at a 4m distance at 8, 12, 6 and 3 cycles per degree under photopic (85cd/m2) conditions with each spectacle lens at one timepoint | — |
Secondary
| Measure | Time frame |
|---|---|
| Visual acuities measured using a standard letter chart at a 4m distance under photopic (85cd/m2) conditions with each spectacle lens at one timepoint | — |
Countries
United States of America
Outcome results
None listed