Myopia Flashcards
(16 cards)
What is simple myopia?
more common than the other types of myopia, is generally less than 6 diopters
What is anisometropic myopia?
occurs when the degree of myopia is unequal in the two eyes (not clinically significant until difference reaches about 1D)
What is nocturnal myopia?
occurs only in dim illumination, is due primarily to increased accommodative response associated with low levels of light
What is psuedomyopia?
the result of an increase in ocular refractive power due to overstimulation of the eye’s accommodative mechanism or ciliary spasm
*Fake myopia
What is pathological (degenerative) myopia?
associated with degenerative changes in the posterior segment of the eye
What is induced or acquired myopia?
the result of exposure to various pharmaceutical agents, variation in blood sugar levels, nuclear sclerosis of the crystalline lens, or other anomalous conditions
*Often temporary and reversible
What does etiology mean?
Root of the cause
What is the most common symptom associated with myopia?
*BLURRED DISTANCE VISION
What is the most common sign of myopia>
*REDUCED UNAIDED DISTANCE VISUAL ACUITY
What is the primary modality for treatment for myopia?
Optical correction
What is important to consider when prescribing for myopia?
That you are not over minusing the patient
*If VA is not improving with each -0.25D, giving too much minus
What is the proper patient education for simple myopia?
Children with simple myopia usually have an onset in childhood. The condition almost always increases in severity until the progression slows or stops in the mid to late teens. Young adults with myopia can be told that increases in myopia during young adulthood are not uncommon. In some patients the increase in simple myopia may continue into the third decade of life.
What is the proper patient education for nocturnal myopia?
Patients should instructed to wear the correction for nighttime seeing under dark conditions, such as when driving at night.
What is the proper patient education for pseudomyopia?
Patients should be educated that the goal of treatment for pseudomyopia is to relax accommodation. Clinicians should explain that periods of blurred distance vision occur when accommodation is not relaxed, and that blurred distance vision may occur periodically until accommodative response is reduced.
What is the proper patient education for degenerative myopia?
Patients should be advised to have annual or more frequent eye and vision examinations, depending upon the severity of ocular changes. Patients need to understand the importance of regular retinal examination, visual fields testing, and measurement of intraocular pressure. Patients should also be educated about the causes and symptoms of retinal break or detachment and be advised to seek immediate care if they experience the onset of symptoms
What is the proper patient education for induced myopia?
Patients should be educated about the agent or condition inducing the myopia and the nature of the changes occurring in the eye. Patients should be informed as to whether the induced myopia will be temporary or long standing and, if appropriate, how to avoid the induced myopia in the future.
