What might indicate a problem with the eye, such as tumor or detachment?

The presence of a white reflex in the eye, also known as leukocoria, can be indicative of serious eye conditions such as tumors (like retinoblastoma) or retinal detachment. In normal circumstances, a healthy eye will display a red reflex, which is the reflection of light from the retina. When a white reflex is observed instead, it suggests the potential presence of an abnormality that needs further investigation.

In essence, the white reflex alters the expected presentation in eye examinations and is a critical sign that may warrant further diagnostic evaluations. Other options, such as the presence of a red reflex, clear vision, or stable vision, indicate that the eye is functioning normally and do not suggest any underlying pathology.