Yes, diabetes can have a significant impact on your eyesight. High blood sugar levels can damage the tiny blood vessels in your eyes, leading to conditions like diabetic retinopathy, which can cause vision loss. It's crucial to have regular eye examinations, especially if you have diabetes, to detect any changes early. If you notice any changes in your vision, such as blurriness or sudden loss of vision, consult your GP promptly. Managing your blood sugar levels effectively can help prevent eye-related complications.