The collaboration between Royan Institute researchers and the University of Dresden in Germany revealed:

• Saffron stops yellow spot disease in eyes.
• These two groups by examining crocetin, one of the ingredients of saffron, proved that The natural antioxidant reduces the effect of oxidative stress on the retinal cell and It reduces or stops the progression of the disease.
• To decompose yellow spot disease Due to old age, It is one of the causes of visual impairment in the elderly population that there are limited treatments for it. One of the major causes of this disease is oxidative stress by damaging the retinal pigmented epithelium. They disrupt light receptors.
• In general, the results of this study show that using natural antioxidants such as crocetin can:
  • Reduce the effect of oxidative stress on retinal cells.
  • Reduce or stop the progression of the yellow spot disease.

you can read more about saffron benefits here.