The morphological characteristics and the distribution of hyalocytes. TEM micrograph of a hyalocyte was distributed in the vitreous cavity close to the retina (A). Higher magnification showed the hyalocyte was completely free and close to the inner limiting membrane (ILM) of the retina (B). SEM micrograph showed three of the free hyalocytes were distributed randomly in the vitreous cortex very close to the retina, which lies in the background (C). A higher magnification view showed the cell was entangled in a collagen fibril network in the vitreous cortex and a few protuberances are observed at the cell surface (D). (Original magnification A, ×2600, bar 5 μm; B, ×6000, bar 1 μm; C, ×1100, bar 10 μm; D, ×4300, bar = 1 μm).