Pneuma of sight (left eye)
Visual extension — anatomical left
Mirror of pneuma_visus_right: the left-eye termination of the visual pneumatic extension. The Stoic doctrine treats the bilateral organs as paired termini of a single pneumatic current originating in the chest; the visible cone is a tensional structure, not a property of the eye in isolation.
Point 3 of 9 in Stoic Hēgemonikon — Central Commanding Faculty + Seven Pneumatic Extensions
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Diogenes Laertius, Lives VII.157 (primary_canonical)
Diogenes Laertius VII.157 lists the eight parts of Stoic soul and identifies the five senses as powers extending from the governing faculty. The passage supplies the catalogue behind the paired visual terminals; it does not prescribe a separate left-eye substance.