A characteristic of CVI is delayed response when looking at objects (visual latency).

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Visual latency is a hallmark of CVI because the challenge lies in the brain’s processing speed, not in the eye’s ability to see. People with cerebral visual impairment may look at an object but take longer to interpret what it is and to decide how to respond. This leads to noticeable delays when recognizing objects, identifying their details, or initiating a visually guided action like reaching for something. The eyes may receive a clear image, but the brain’s interpretation and planning take extra time, especially with complex scenes or clutter.

In contrast, the other statements describe features that aren’t typical defining signs of CVI. A missing or impaired visual blink reflex isn’t a standard CVI hallmark, distance vision isn’t necessarily fully intact in CVI since visual difficulties can affect how clearly things are seen at a distance, and acute color discrimination changes aren’t a universal or defining CVI feature. The key concept is the slowed processing of visual input leading to delayed responses.