Fixing solution for eyes according to YANOFF is used for preservation and stabilization of tissues, especially eye tissues. The application of this solution preserves the protein structure of the tissue by forming cross-links between proteins. This process is made possible by the aldehydes contained in the product, in particular formaldehyde and glutardialdehyde. The added phosphate salts act as a buffer to keep the pH of the solution at a constant level, which is crucial for the efficiency of fixation. After application, the ocular tissue remains structurally intact and is ready for further examination, such as histological analysis. By using this fixation solution, the tissue can be stored for extended periods of time without significant structural changes occurring.