Glaucoma is the second leading cause of blindness in the world. For women, the risk of glaucoma may even be related to estrogen levels.

Some women take hormone medications to help with menopausal symptoms. It's possible that these medications protect their eyesight as well.

Glaucoma is one of the leading causes of blindness. And women who use birth control may be at greater risk than those who don't.

Being born too early comes with various possible health risks, including a form of blindness called retinopathy of prematurity that afflicts about half of babies born before 28 weeks.