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Viophtans are sterile water-salt solutions of bioregulators of small matrix of eye tissue of young gobies. Like Viorgons and Vioftans, after isolation from tissues in the form of specially obtained tissue extracts, they undergo multistage purification using modern methods of biochemistry and bioorganic chemistry. Moreover, all Viophtans are tested for specific biological activity. And only after obtaining biologically active highly purified substances, water-salt preparations are prepared from them by aseptic filling, which reach the end user.