How to Use Guava to Care for Your Eyes: Natural Remedies That Surprise

antioxidants and other phytochemicals—these are known to help protect tissues (including ocular tissues) from oxidative stress. 

A review notes guava supports eye health through vitamin A, beta-carotene and flavonoids, potentially reducing the risk of night blindness, macular degeneration and diabetic retinopathy. 

One older study tested a guava-leaf decoction as a topical antibacterial for the eye in animals; Although results were promised, sterility issues were noted and the study is far from definitive for human use.

Official sources (eg, WebMD) caution that while guava has nutritional benefits, there is  no strong