Which statement is true about torsional amblyopia in relation to the major refractive amblyopia types?

Which statement is true about torsional amblyopia in relation to the major refractive amblyopia types?

• A. It is one of the three major types
• B. It is not among the three major types
• C. It is a form of strabismic amblyopia
• D. It is the most common refractive amblyopia

Answer: (B)

The key idea is how amblyopia is classified. The three well-established major categories are refractive, strabismic, and deprivation. Torsional amblyopia describes a suppression pattern related to abnormal ocular torsion (often with cyclovertical deviations), but it isn’t counted as a separate major type in standard classifications. It can occur with other forms, such as strabismic or refractive amblyopia, but it does not stand alone as one of the three main categories. So the correct understanding is that torsional amblyopia is not among the three major types. The other statements clash with how amblyopia types are organized: it isn’t listed as a major type, it isn’t defined as a form of strabismic amblyopia, and it isn’t the most common refractive amblyopia (the common refractive type is typically anisometropic amblyopia).

The key idea is how amblyopia is classified. The three well-established major categories are refractive, strabismic, and deprivation. Torsional amblyopia describes a suppression pattern related to abnormal ocular torsion (often with cyclovertical deviations), but it isn’t counted as a separate major type in standard classifications. It can occur with other forms, such as strabismic or refractive amblyopia, but it does not stand alone as one of the three main categories. So the correct understanding is that torsional amblyopia is not among the three major types. The other statements clash with how amblyopia types are organized: it isn’t listed as a major type, it isn’t defined as a form of strabismic amblyopia, and it isn’t the most common refractive amblyopia (the common refractive type is typically anisometropic amblyopia).