Hello This could be subconjunctival hemorrhage This is unrelated to diabetic retinopathy This will resolve without treatment Having said that it would be better if u can send photo of ur eyes

Hello there......, Eye redness occurs when the vessels in your eye become swollen or irritated..... The most likely causes of a painless red eye are minor problems such as conjunctivitis or a burst blood vessel. These conditions don't tend to affect your vision and normally get better within a week or two...However..., kindly consult Ophthalmologist for further evaluation and treatment....