https://www.theralife.com/fish-oil/

Fish oil is known for being abundant in unsaturated fatty acids. These fatty acids are known to help the eye and may assist in the prevention of macular degeneration, cataract and dry eye. Fish oils, also called omega-3 fatty acids, contain components called docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA). These acids are naturally found in the retina of the eye and are vital nutrients that maintain healthy function of the retina.