Vision that becomes blurry can have many explanations, including an outdated glasses prescription, eye strain, dry eyes, cataracts, or changes in blood sugar.
Diabetes can affect small blood vessels in the retina and may eventually cause diabetic retinopathy. In some people, changing blood sugar levels can temporarily alter vision even before permanent retinal damage develops.
Blurred vision should be checked if it is persistent, recurring, or worsening.
Sudden vision loss or a sudden major change in vision is an emergency and requires urgent medical attention.
4. A Gray or White Ring Around the Cornea
