Flashcards in Myopia Control Deck (21):
What is the best controller of myopia progression?
What's better, atropine .1% or .01%?
Both drops are good, but 0.01% had less SEs and rebound myopia
The use of tropicamide and cyclopentolate in myopia control provided what type of results when studied?
What happens if you undercorrect myopia to try and control the growth?
Undercorrecting myopia actually accelerates myopia progression
Bifocal lenses (including PAL) were only effective in controlling myopia in what group?
Pxs with Low accommadation and esophoria
What are some lifestyle changes that a px can do to control myopia progression?
1. Read in the light
2. Avoid short reading distance
3. Don't use nightlight
What type of contact lenses showed myopia control?
Biofinity MF D lens = Soft Bifocal Lens (+2.50 is best)
How do MF contract lenses decrease myopia progression?
Modifies peripheral rays that hit the back of the eye
Do RGPs help with myopia control?
Only helps during the first year
What is the 2nd most effective myopia control tx (after atropine)?
What is the theoretical, main cause of myopia progression?
In myopia, the peripheral rays defocus behind the retina, causing the eye to think it is too short and it grows
Ortho K produces what type of corneal shape to reduce the hyperopic defocus of the peripheral retina?
Oblate corneal shape
What is the largest risk factor for high myopia?
If both parents are myopic
Is sx recommended for trying to control myopia?
What is the first tier of myopia control supported by the literature?
1. Atropine, QHS
2. Ortho K, QHS
What is the 2nd tier of myopia control supported by the literature?
1. Bifocal SCLs
2. Outdoor activities
Who are the most common candidates who undergo OrthoK?
1. Dre eye pxs
2. Females who fear lasik
3. Adolescent w/ progressive myopia
How many diopters of myopia can a px have to be selected for Orthok?
< -5.00 D
Which curve is primarily responsible for the fit of the lens?
Which curve is for refractive changes only (i.e. treatment zone)?