Diabetes and the side effects of the drugs used for this disease can lead to visual impairment. There are some researches that reveal this kind of negative effect.
Having an eye examination once a year after the age of 40 is beneficial for everyone since it can be difficult to see nearby. Because, like all other diseases in the body, almost half of the eye diseases are genetic. Genetic visual defects should be followed up by the doctor.
Another factor is diabetes. Diabetes harms all organs in the body and causes the greatest damage. Diabetes can impair vision by holding the retinal layer that provides vision in our eyes and by lining the inner wall of the eye (Diabetic Retinopathy). Also, prolonged high blood sugar levels can affect the eye and cause blindness. Irregular glucose levels and sudden blood sugar rises and drops facilitate retinal disruption and disease progression. Pregnancy, hypertension, high blood fat, kidney disease are other factors that aggravate retinopathy, as well.
For these reasons, it is very important to continue periodic eye examinations. If the retina is normal in diabetics, an annual examination is sufficient. But, if there is a retinal deterioration, your doctor may decide the follow-up frequency as 3 – 4 months.