Optics: Myopia Progression And Control Flashcards

1
Q

Patients with ______myopia are likely to have a poorer quality of life.

A

Higher

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2
Q

people with high myopia worry about cosmetic appearance because..

A

Lenses are thick and are expensive to get thinner ones

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3
Q

25% of patients with myopia were likely to have ____ and _____

A

Depression and anxiety

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4
Q

Qualitative myopia definitions are

A

Myopia, axial myopia, refractive myopia, and secondary myopia

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5
Q

Myopia is

A

-Rays focus in front of retina
-due to long axial length or overly curved cornea
-nearsightedness

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6
Q

Axial myopia

A

Greater than normal axial length

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7
Q

Refractive myopia

A

Attributed to changes in the stricture or location of the image forming structure of the eye

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8
Q

Secondary myopia

A

Single specific cause of myopia
-drugs, corneal disease

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9
Q

Quantitative definitions of myopia are..

A

Myopia, low myopia, high myopia, pre-myopia

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10
Q

Myopia (quantitative)

A

Spherical equivalent Refractive error of lower or equal to -0.50D

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11
Q

Low myopia

A

Spherical refractive error of eye is between less than or equal to 0.50D and greater than -6.00 D

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12
Q
A
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13
Q

High myopia

A

Spherical equivalent of eye is less than or equal to -6.00D

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14
Q

Pre-myopia

A

Refractive state of eye is less than or equal to +0.75D and greater than -0.50D in children

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15
Q

Pathological myopia range

A

Between - 5 (or equal) and -6 D

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16
Q

What is the main risk factor for development of pathologic complications of myopia in adulthood?

A

Axial elongation

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17
Q

Axial elongation is accompanied by

A

Thinning of the choroid and sclera

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18
Q

Highest Myopia risk factor for age of onset

A

Less than 9 years old

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19
Q

Highest myopia risk faster with myopic parents

A

Both parents have it

20
Q

Highest myopia risk factors for amount of outdoor time

A

Less outdoor time

21
Q

Highest myopia risk factor for doing close work

A

More close work

22
Q

Highest myopia risk factors for binocular vision disorders

A

Esophoria, high AC/C accommodation lag, intermittent exotropia

23
Q

In societies where children go to school and complete years of school, have what effect on the prevalence of myopia?

A

It increases

24
Q

Children that achieve higher grades in school tend to be ______ myopia

25
Myopia prevalence _______ with college graduate and above education
Increases
26
Children born in summer months are _____ myopic
More (RIP Leo’s) -could be if they start school earlier*
27
Children that are not the first borns tend to be ___ myopic.
Less
28
Low socioeconomic status patients were ___ likely to have myopia
More
29
High complexity means..
Low socioeconomic status
30
Plus lenses on the newborn chick eyes caused the eyes to
Grow shorter
31
Minus lenses on newborn chick eyes caused the eyes
To grow longer
32
Myopic defocus leads to
Choroid thickening and decreased sclera growth
33
Choriodal thickening and decreased scleral growth leads to
Decreased virtuous chamber depth and induced hyperopia
34
Myopia control may take two forms, what are they?
Decrease myopia progression or prevention of myopia onset
35
Treatments for myopia include..
Slowing the eye growth not just focusing the image correctly
36
Under correction has been shown to ____ myopia
Increase
37
What spectacle designs are shown to be effective in slowing myopia progression?
-Essilor stellest -hoya miyosmart
38
The principal behind DIMS( hoya, myosmart) is
That all the little plus circles all focus on the retina -myopic defocus in peripheral retina!!
39
CARE(Zeisy’s, myoglass)lens have cylindrical tubes that
Correcting the peripheral retina because it more susceptible to myopia -HALT (essilor, stellest lens) does the same thing
40
Orhtokeratology contact lenses have been found to
Low the growth of the eye
41
_______ is the only FDA approved myopia control design in the US.
Mysight CL
42
Mysight is using what kind of CLs
Dual focus
43
Dual focus CLs are creating ..
Simultaneous defocus
44
Dual focus CLs design:
Gradual increase in relative plus power toward the lens periphery
45
What kind of drops are commonly used in ophthalmic myopic control?
Atropine -controversial in optometry
46
Note the difference between treatment and management of myopia :)