Squalamine, derived from sharks, is being tested as a treatment for macular degeneration. It has been shown to be helpful in retinal vein occlusion and may become useful in diabetic retinopathy.
From Alzheimer's to ALS to Multiple Sclerosis to Parkinson's Disease, preliminary studies indicate retinal findings may contribute to diagnosis and staging. The retina is brain tissue and a growing window to brain disorders.
Aspirin use as it relates to the eye is complex: it may increase risk in typical macular degeneration, benefit visual outcomes in other retinal disease, and has been shown not to affect diabetic hemorrhages.