Optics: Myopia Progression And Control Flashcards
Patients with ______myopia are likely to have a poorer quality of life.
Higher
people with high myopia worry about cosmetic appearance because..
Lenses are thick and are expensive to get thinner ones
25% of patients with myopia were likely to have ____ and _____
Depression and anxiety
Qualitative myopia definitions are
Myopia, axial myopia, refractive myopia, and secondary myopia
Myopia is
-Rays focus in front of retina
-due to long axial length or overly curved cornea
-nearsightedness
Axial myopia
Greater than normal axial length
Refractive myopia
Attributed to changes in the stricture or location of the image forming structure of the eye
Secondary myopia
Single specific cause of myopia
-drugs, corneal disease
Quantitative definitions of myopia are..
Myopia, low myopia, high myopia, pre-myopia
Myopia (quantitative)
Spherical equivalent Refractive error of lower or equal to -0.50D
Low myopia
Spherical refractive error of eye is between less than or equal to 0.50D and greater than -6.00 D
High myopia
Spherical equivalent of eye is less than or equal to -6.00D
Pre-myopia
Refractive state of eye is less than or equal to +0.75D and greater than -0.50D in children
Pathological myopia range
Between - 5 (or equal) and -6 D
What is the main risk factor for development of pathologic complications of myopia in adulthood?
Axial elongation
Axial elongation is accompanied by
Thinning of the choroid and sclera
Highest Myopia risk factor for age of onset
Less than 9 years old
Highest myopia risk faster with myopic parents
Both parents have it
Highest myopia risk factors for amount of outdoor time
Less outdoor time
Highest myopia risk factor for doing close work
More close work
Highest myopia risk factors for binocular vision disorders
Esophoria, high AC/C accommodation lag, intermittent exotropia
In societies where children go to school and complete years of school, have what effect on the prevalence of myopia?
It increases
Children that achieve higher grades in school tend to be ______ myopia
More