what caused Diabetes vision confused

Diabetic retinopathy is not to be underestimated, if not treated, then it is likely to lead to the risk of blindness, then, in addition to retinopathy causes blurred vision, but also for what reasons do?
A refractive error. Myopia, hyperopia, astigmatism, and presbyopia.
2, and glaucoma.
3, eye trauma. Penetrating eye injury, blunt trauma, blast injury, chemical burns, radiation injury.
4, the systemic circulation disorders and metabolic disorders and genetic diseases. Hypertensive retinopathy, diabetic retinopathy, nephritis retinopathy, pregnancy induced hypertension retinopathy, blood disease retinopathy, retinitis pigmentosa, macular degeneration, ischemic optic neuropathy, cataract.
5, inflammation is the most common cause blurred vision.
(1) infection: caused by bacteria, viruses, chlamydia, fungi, parasites, keratitis, corneal ulcers, iridocyclitis, choroiditis, endophthalmitis, the whole eye inflammation, orbital cellulitis, etc. .
(2) non-infectious: bullous keratitis, uveitis (iridocyclitis, choroiditis), sympathetic ophthalmia, Harada disease.
6, strabismus, amblyopia.