Eye strenght. Refraction
Conditions
Interventions
One dose of cyclopentolate 1% followed by one dose tropicamide 1%: interval 5
minutes in one eye, and 2 doses of cyclopentolate 1%, interval 5 minutes, in
the other eye
compared to 3 days, in total 5 doses atropine 0.5% in both eyes
after an interval of 2 weeks.
Sponsors
Medisch Centrum Haaglanden
Eligibility
Age
2 Years to 11 Years
Inclusion criteria
Inclusion criteria: Healthy; not suffering from syndromes or diseases, 3 to 6 years (not attending group three of Dutch primary school system) old very dark irided hypermetropic children, possesing good accommodation, with no glasses prior or who did not wear their hypermetropic glasses since at least 4 weeks and able to fixate with each eye.
Exclusion criteria
Exclusion criteria: All children not possesing the inclusioncriteria (D4a)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Primary outcome parameter is the refractive outcome. Differences will be considered statistical significant if p 0.25 D will be considered clinical significant. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary outcomes are amount of cycloplegia and time to reach optimal refractive outcome and amount of cycloplegia. Differences will be considered statistical significant if p 0.25 D and a difference in time to optimal refractive outcome and/or maximum cycloplegia of >10 minutes will be considered clinical significant. | — |
Countries
Netherlands
Outcome results
None listed