What causes vision loss in the elderly? _Industry information_
A large part of the decline in vision in the elderly is due to physiological reasons, that is, the factors of natural aging, and there will be different degrees of vision loss. However, the vision loss in the elderly is also related to other factors, including eye diseases, physical factors, etc. Some elderly people have a sharp decline in vision, and they are tight. Let’s take a look at the causes of vision loss in the elderly. Physiological reasons, also known as presbyopia, is a very normal physiological change. It usually occurs around the age of 40 and varies from person to person. It is mainly manifested in decreased vision, blurred vision, etc. diabetes etc. And because fundus hemorrhage and vitreous hemorrhage can cause different degrees of eye damage, which has a great impact on vision, and some even cause eye blindness. Acute glaucoma, manifested in severe vision loss, mydriasis, increased intraocular pressure and other phenomena. It is easy to cause damage to the optic nerve in the fundus, and it is easy to blind the eyes in a short period of time. Acute optic neuritis, an acute eye disease, also predisposes to blindness. There are many causes, mainly some internal inflammations, including influenza, pneumonia, etc., which can easily cause the occurrence of optic neuritis. Retinal detachment, commonly seen in middle-aged and elderly people with myopia, is mainly caused by lattice or cystoid degeneration around the retina, vitreous liquefaction, atrophy and shrinkage and other incentives, usually both eyes. Vitreous hemorrhage, a red or black patch in front of many patients, rupture of small blood vessels in the tissue near the vitreous body of the eye, causing vitreous hemorrhage. It generally occurs in elderly people with high blood pressure and diabetes, and the vision loss of diabetic patients is mostly due to diabetic retinopathy, which is also prone to blindness. Optic head ischemia, if the blood vessels supplying nutrients to the optic nerve head harden, resulting in degeneration of the optic nerve head. Vision loss in the elderly also includes senile cataracts, macular degeneration and so on.