dial vision is the ability to distinguish small or distant objects and subtle parts. Vision less than 1.0 for the vision loss, 0.3 below the low vision, the performance of blurred vision. Causing blurred vision of the lesion is very extensive, resulting in blurred vision for a variety of reasons.
1, inflammation is the most common cause of blurred vision, (1) infectious: by bacteria, viruses, chlamydia, fungi, parasites and other keratitis, corneal ulcers, iridocyclitis, choroiditis, endophthalmitis , All-eye inflammation, orbital cellulitis and so on. (2) non-infectious: keratoconjunctivitis, uveitis (including iridocyclitis, choroiditis), sympathetic ophthalmia, field sickness and so on.
2, refractive error: myopia, hyperopia, astigmatism, presbyopia.
3, strabismus, amblyopia
4, eye trauma, eye perforation injury, blunt contusion, blast injury, chemical burns, radiation injuries and so on.
5, glaucoma
6, all kinds of eye disease caused by sequelae, corneal scar, pupillary membrane closure, pupillary atresia, vitreous opacity.
7, systemic circulatory disturbance and metabolic disorders and hereditary diseases, hypertensive retinopathy, diabetic retinopathy, nephritis retinopathy, pregnancy-induced hypertension retinopathy, hematological retinopathy, retinitis pigmentosa, macular degeneration , Ischemic optic neuropathy, Leber disease and other fundus lesions, cataracts.
8, retinal vascular disease and retinal detachment, retinal artery occlusion, retinal vein occlusion, central serous chorioretinopathy, retinal vasculitis, retinal detachment.
9, senile and degenerative lesions, senile cataract, corneal degeneration, age-related macular degeneration.
10, dial vision lentes,tumor, intraocular tumor, orbital tumor or eye shadow eyelid tumors.
11, other, visual path lesions.
12 eye fatigue, when the eye is not hygienic or eye malnutrition and so on.