Diabetes
Diabetes can affect vision in many ways. Some vision changes are temporary and some are permanent. Temporary changes are due to unstable blood sugar levels. This can cause a temporary swelling of the natural lens in the eye, thus cause fluctuating vision.
Dry Eye Syndrome
DES is caused by a decrease in the quantity and/or quality of tears. The purpose of natural tears is to lubricate the eyes to keep them comfortable, and to provide a protective barrier to bacteria and foreign particles. Tears also help to sharpen vision.
