TABLE 9.

NEW CLASSIFICATION OF MGUS-INDUCED PPK BASED ON THE PRESENTED STUDY AND PAST LITERATURE

Superficial punctiform crystalline-like (with and without peripheral patches) Superficial comma-shaped crystalline-like (with and without haze) Stromal punctiform or comma-shaped crystalline-like Deep crystalline-like Superficial diffuse and fleck-like Superficial geographic-like Central granular-like Peripheral granular-like Peripheral circular band-like (with and without conjunctival inflammation) Peripheral inflammatory-like haze (with and without corneal vascularization) Peripheral superficial patch-like Stromal lattice-like Stromal flake-like Stromal punctiform-like Central golden-brown discoloration of Descemet + hypercupremia Verticillata-like appearance Mixed-like appearance

MGUS, monoclonal gammopathy of undetermined significance; PPK, paraproteinemic keratopathy.