Kearns-Sayre syndrome (KSS) is a rare mitochondrial myopathy that usually develops before 20 years of age. It demonstrates multisystemic involvement with a triad of cardinal features: progressive ophthalmoplegia. pigmentary retinopathy. and cardiac conduction abnormalities. https://www.bekindtopets.com/save-now-Rx-Chorulon-HCG-for-Cattle-save-extra/