From Halopedia, the Halo wiki
Project: SCLERA is a UNSC project, with researchers from Watershed Division, Materials Group, and select grad students from the Applied Sciences program at Koletre-Browning University. The project produced the P237-THEIATEK optical suite, compatible with the AKIS helmet.
The project takes its name from the fibrous protective outer layer of the human eye, also known as the "white of the eye". This suggests the project's optical nature.