Which of the following does NOT utilize entoptic phenomenon?

The correct answer is anterior uveitis, as this condition does not involve entoptic phenomena. Entoptic phenomena refer to visual effects that originate from structures within the eye itself, allowing us to see aspects of our own anatomy.

Vitreous floaters result from shadows cast by tiny particles suspended in the vitreous humor, which can be perceived as small moving spots or strands in one’s vision. Moore's lightning streaks are created by the stimulation of the retina or visual pathways during certain visual activities, such as afterimages or pressure applied to the eye. Blue arcs of the retina, also a form of entoptic phenomenon, are visual effects produced by the scattering of light around the edges of the optic nerve or the fovea.

In contrast, anterior uveitis is an inflammatory condition affecting the uvea that does not produce these self-generated visual phenomena. Instead, it manifests through symptoms such as eye pain, redness, and blurred vision, which are not related to the perception of internal structures. Therefore, this option stands apart from the other choices that relate directly to entoptic phenomena.