The Tessera OcularNet Weave is a full retinal replacement system that installs a layered photonic mesh directly onto the retinal surface, preserving the organic eye's external appearance while replacing its internal imaging function with a multi-spectrum sensor array. Unlike total ocular replacement — which removes the eye entirely — the Prisma procedure preserves the sclera, iris, and lens, threading the photonic weave through a series of micro-incisions invisible to the naked eye. The result is an augmented eye that reads as biological on casual inspection, infrared scan, and most corporate security biometric checks, while providing the operator with a full suite of enhanced visual processing.

Prisma's core capability set includes low-light amplification across a 200-meter effective range, passive electromagnetic field visualization, real-time facial recognition against local cached databases, and a HUD overlay layer that can receive encrypted data feeds from paired Tessera hardware. The weave also supports a 'record and buffer' function, storing up to 72 hours of visual data in compressed format within an onboard microdrive accessible via a behind-the-ear port. What makes Prisma culturally distinctive is Tessera's aesthetic design philosophy — the weave introduces an almost imperceptible iridescent quality to the iris under direct light, which has become a recognized status marker in corporate and creative circles, worn as an intentional tell by those who can afford to be subtle about their augmentation.

Tessera Corponation markets Prisma primarily through its corporate wellness divisions and licensed cosmetic augmentation clinics, positioning it as much as a luxury product as a tactical one. However, the same units sold to corporate executives for 'enhanced visual wellness' are worn by intelligence operatives, surveillance specialists, and high-value corporate espionage contractors. Tessera maintains studied ignorance about the gap between marketed use and actual deployment.