Certified Paraoptometric Practice Test

Define amblyopia.

1. A condition where both eyes function equally

2. A condition commonly known as "lazy eye," where vision in one eye is reduced

3. A condition that affects color perception

4. A condition leading to increased eye strain

The correct answer is: A condition commonly known as "lazy eye," where vision in one eye is reduced

Amblyopia, often referred to as "lazy eye," is defined as a developmental disorder where the vision in one eye is reduced because the eye and the brain are not working together properly. This condition typically occurs when one eye has a significantly worse visual acuity than the other, leading to reliance on the stronger eye. It is essential for this condition to be addressed early in pediatric populations, as untreated amblyopia can lead to permanent vision problems. To understand why option B is the correct definition, it is important to note that amblyopia specifically involves the reduction of vision in one eye, which can stem from various factors such as strabismus (misalignment of the eyes), refractive errors (like myopia or hyperopia), or deprivation due to conditions like cataracts. The term "lazy eye" captures the essence of the condition, emphasizing the diminished function of one eye relative to the other. The incorrect options highlight characteristics not associated with amblyopia. When both eyes function equally, that indicates healthy vision rather than amblyopia. Conditions affecting color perception relate more to color vision deficiency, not to the definition of amblyopia. Increased eye strain can stem from a range of issues, including uncorrected refractive errors or prolonged