Abnormal smallness of one or both eyes is known as which condition?

Prepare for the ARRT Ultrasound Test with comprehensive study tools including flashcards and multiple choice questions, all with detailed explanations. Ace your exam with confidence!

Multiple Choice

Abnormal smallness of one or both eyes is known as which condition?

Explanation:
Microphthalmia is the name for abnormal smallness of one or both eyes. It describes a globe that is smaller than normal, which can occur in one eye or both and may be isolated or part of a syndrome. In ultrasound, you’d expect a reduced ocular diameter compared with gestational age norms. This differs from anophthalmia, where no eye tissue is present; from macrophthalmia (macrophthalmia), where the eye is abnormally large; and from coloboma, which is a structural defect of the eye rather than a size issue. That’s why the best answer is microphthalmia.

Microphthalmia is the name for abnormal smallness of one or both eyes. It describes a globe that is smaller than normal, which can occur in one eye or both and may be isolated or part of a syndrome. In ultrasound, you’d expect a reduced ocular diameter compared with gestational age norms. This differs from anophthalmia, where no eye tissue is present; from macrophthalmia (macrophthalmia), where the eye is abnormally large; and from coloboma, which is a structural defect of the eye rather than a size issue. That’s why the best answer is microphthalmia.

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