Practice the diagnosis and treatment of vision loss

2021-04-16 04:48 PM

Loss of vision in one of the eyes due to not being used, as in the case of squinting

Sudden loss of vision

Sudden vision loss can be a symptom of a number of diseases as outlined below, but can also be an eye disease as in acute glaucoma ... Most The sudden force is ophthalmic emergencies that need to be treated quickly and referred to the hospital as soon as possible.

Common causes

Retinal artery occlusion.

Clogged retinal veins.

Retinal detachment.

Acute glaucoma.

Inflammation of the temporal arteries.

Postocular neuritis.

Stroke.

Migraine headache.

Progressive vision loss

Progressive vision impairment means that vision deteriorates over time for one or more reasons. These cases are often difficult to detect early because the patient does not realize that vision is declining. Therefore, if vision loss is suspected, routine eye exams should be performed. Progressive vision loss in children is very important to early detection because of its good ability to treat. For adults, if vision loss is detected, first of all, think about whether or not to wear glasses.

Common causes

Refractive error, irregular refractive error, means that the force is not converging equally in the eyes, usually due to a problem in one eye, such as near-sightedness, farsightedness, or astigmatism. Refractive errors cause visual disturbances because when a patient looks at an object, the image formed on the two retinae differs.

Loss of vision in one of the eyes due to not being used, as in the case of squinting (squint). Usually, just covering the normal eyes to force the squinted eye to work can correct vision.

Diabetic retinopathy is a condition of the retina caused by diabetes. The small blood vessels of the retina (capillaries) bulge, fluid from which oozes and haemorrhages in the retina. Abnormal blood vessels are formed on the surface of the retina, which can easily rupture and cause bleeding. Haemorrhage can also occur in the aqueous humour and form fibrous tissue in the fluid. Late-stage of the disease is often the cause of permanent blindness.

Inherited degenerative retinal diseases, such as retinitis pigmentosa.

Posterior inflammation

Pituitary tumour: because the pituitary gland is located in a pit of bone in the base of the skull, when a tumour grows, even benign tumours, it will press on the optic nerve, causing visual disturbances.

Common causes in the elderly

Refractive error (mentioned above).

Cataracts, a condition in which the protein fibres in the lens are altered, making the lens no longer transparent to allow light to pass through as easily as before. The disease has no known cause, but usually occurs in the elderly and increases with age, so it is still considered a natural process of ageing. As the lens becomes more and more opaque, vision gradually decreases, until the patient has very poor vision or can no longer see.

Macular degeneration (macular), is degenerative damage in the central part of the retina, forming yellow-white spots. Macular degeneration often occurs simultaneously in both eyes, causing the patient to lose sight in the central part, for example, when looking at a line of text, it is not possible to see 2 or 3 letters in the middle space. The disease occurs in old age, so far it has not been treated, but has not progressed to the point of causing complete vision loss.

Acute glaucoma, also known as closed-angle glaucoma (discussed above).

Hypertensive retinopathy is a condition in which the retina is damaged by high blood pressure, narrowing and atherosclerosis of the retinal artery wall. Damage to the retina leads to loss of vision