Myopia Control Flashcards Preview

Environmental Optometry > Myopia Control > Flashcards

Flashcards in Myopia Control Deck (21):
1

What is the best controller of myopia progression?

Atropine QHS

2

What's better, atropine .1% or .01%?

Both drops are good, but 0.01% had less SEs and rebound myopia

3

The use of tropicamide and cyclopentolate in myopia control provided what type of results when studied?

Contradictory results

4

What happens if you undercorrect myopia to try and control the growth?

Undercorrecting myopia actually accelerates myopia progression

5

Bifocal lenses (including PAL) were only effective in controlling myopia in what group?

Pxs with Low accommadation and esophoria

6

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

7

What type of contact lenses showed myopia control?

Biofinity MF D lens = Soft Bifocal Lens (+2.50 is best)

8

How do MF contract lenses decrease myopia progression?

Modifies peripheral rays that hit the back of the eye

9

Do RGPs help with myopia control?

Only helps during the first year

10

What is the 2nd most effective myopia control tx (after atropine)?

Orthokeratology

11

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

12

Ortho K produces what type of corneal shape to reduce the hyperopic defocus of the peripheral retina?

Oblate corneal shape

13

What is the largest risk factor for high myopia?

If both parents are myopic

14

Is sx recommended for trying to control myopia?

No!

15

What is the first tier of myopia control supported by the literature?

1. Atropine, QHS
2. Ortho K, QHS

16

What is the 2nd tier of myopia control supported by the literature?

1. Bifocal SCLs
2. Outdoor activities

17

Who are the most common candidates who undergo OrthoK?

1. Dre eye pxs
2. Females who fear lasik
3. Adolescent w/ progressive myopia

18

How many diopters of myopia can a px have to be selected for Orthok?

< -5.00 D

19

Which curve is primarily responsible for the fit of the lens?

Alignment Curve

20

Which curve is for refractive changes only (i.e. treatment zone)?

Base Curve

21

Is orthoK reversible?

Yes!