Cyanine Dyes as Optical Contrast Agents for Ophthalmological Surgery
摘要:
Cyanine dyes were prepared as optical contrast media for supporting the surgery of the lamina limitans interna (LLI) of the retina and other structures of the human eye. Their absorption spectra were adapted both to the spectral sensitivity of the human eye and to standard illumination. The contrast could be further amplified by the application of the strong fluorescence of the dyes used. The binding of the dyes to various surfaces was studied. No toxic effects could be detected for the applied dyes.
Cyanine dyes having optional sulfonic acid substituents on the aromatic nucleus have been developed for use as contrast agents for assisting in surgery and diagnosis, especially for simplifying the surgical removal of basal membranes of the eye, such as the internal limiting membrane (ILM), and for dyeing the lens capsule.
Cyanine dyes were prepared as optical contrast media for supporting the surgery of the lamina limitans interna (LLI) of the retina and other structures of the human eye. Their absorption spectra were adapted both to the spectral sensitivity of the human eye and to standard illumination. The contrast could be further amplified by the application of the strong fluorescence of the dyes used. The binding of the dyes to various surfaces was studied. No toxic effects could be detected for the applied dyes.