Recent research, including a study published in the Journal of Glaucoma, is exploring the connection between dental hygiene and glaucoma. Evidence suggests that excess bacteria in the mouth could be a catalyst for the development of open-angle glaucoma and that maintaining good oral health could reduce the risk.
In addition to glaucoma, cataracts have also been linked with oral health. Toxic elements in mercury fillings have been found to cause the formation of cataracts, retinitis pigmentosa, iritis, color-vision issues, and other eye conditions.
The body is a system and scientists are still working out how various microbiomes in that system can affect the body as a whole. So while you may not want to start passing out toothbrushes to patients at every visit like the dentist, information about how oral hygiene might affect their eye health could prove valuable.