High Blood Pressure
High blood pressure can damage the tiny, delicate blood vessels that supply blood to your eyes, causing: Damage to the retina. Damage to the light-sensitive tissue at the back of your eye can lead to bleeding in the eye, blurred vision, and complete loss of vision.
Oxidative Stress
Oxidative stress refers to harmful chemical reactions that can occur when our cells consume oxygen and other fuels to produce energy. It’s an unfortunate consequence of living, but it’s also considered a major contributor to normal aging cataract formation in the lens.
Reference:
[1] https://www.healthline.com/health/cataract#:~:text=A%20cataract%20is%20a%20dense,through%20the%20lens%20into%20signals.
[2] https://www.mayoclinic.org/diseases-conditions/cataracts/symptoms-causes/syc-20353790
[3] https://my.clevelandclinic.org/health/diseases/8589-cataracts
[4]https://www.diabetes.co.uk/diabetes-complications/cataracts.html#:~:text=Does%20diabetes%20increase%20the%20risk,greater%20risk%20of%20developing%20cataracts.
[5] https://www.everydayhealth.com/vision-center/the-aging-eye/tips/smoking-ups-risk-for-age-related-vision-loss.aspx#:~:text=Research%20has%20found%20that%20smokers,you%20have%20of%20developing%20cataracts.