Infantile ET is typically constant rather than intermittent.

Infantile ET is typically constant rather than intermittent.

• A. Constant
• B. Intermittent
• C. Alternating
• D. Variable

Answer: (A)

Infantile esotropia is a persistent inward turn that is present from early infancy and remains in primary gaze at both near and distance. This constant pattern reflects a long-standing disruption of the developing vergence system, so the deviation does not come and go or swap between eyes. Fusional control is limited, leading to a fixed misalignment rather than episodic alignment. In contrast, intermittent, alternating, or variable patterns are more typical of other forms of strabismus, not the usual presentation of infantile esotropia.

Infantile esotropia is a persistent inward turn that is present from early infancy and remains in primary gaze at both near and distance. This constant pattern reflects a long-standing disruption of the developing vergence system, so the deviation does not come and go or swap between eyes. Fusional control is limited, leading to a fixed misalignment rather than episodic alignment. In contrast, intermittent, alternating, or variable patterns are more typical of other forms of strabismus, not the usual presentation of infantile esotropia.