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Causes of Blindness

March 19, 2018 -

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Causes of Blindness

Nothing, nothing is worse than blindness; be it a blindness of the eye or of thoughts. Sight is a gift bestowed upon living beings by nature. We do not realize how fortunate we are to be able to see things until we lose it. This blog post explains to you the various causes of blindness. Let’s get going!

1. Head Injury:
Any sort of injury to the brain or skull or scalp is treated as a head injury. Head injuries generally include concussions, skull fractures, and scalp wounds. The cause and the intensity of the injury determine the consequences and the type of treatment.

Head injuries can be classified as follows:
i) open head injury- an injury involving a broken skull
ii) closed head injury- one that doesn’t break the skull

Since it is difficult to assess the type of injury by a mere glance, it is better to get any head injury examined and assessed by a doctor to avoid major consequences.

2. Glaucoma:
Glaucoma is caused by increased eye pressure, which can damage the optic nerve and result in blindness. The fluid produced at the ciliary body drains out through the trabecular meshwork. When these channels get blocked, the pressure inside the eye increases and causes glaucoma.
If detected in the early stage, it is possible to avoid further vision loss.

3. Hereditary retinal degenerations:
If one has a family history of glaucoma or other severe eye problems, there is quite a possibility for blindness to occur.

4. Retinal Detachment:
When the retina gets separated from the back of the eye, it is called retinal detachment. Sounds painful, but it is associated with very little or no pain.
The symptoms of retinal detachment are:

  • blurred vision
  • partial vision loss, which makes it seem as if a curtain has been pulled across your field of vision, with a dark shadowing effect
  • sudden flashes of light that appear when looking to the side
  • suddenly seeing many floaters, which are small bits of debris that appear as black flecks or strings floating before your eye

5. Hypertensive Retinopathy:
Hypertensive Retinopathy is caused by prolonged high BP or hypertension. It generally occurs after your blood pressure has been consistently high over a prolonged period. Hypertension or high BP causes the walls of the blood vessels in the retina to thicken, thereby restricting blood supply. These factors have a profound effect on blood pressure:

  • lack of physical activity
  • overweight
  • too much salt intake
  • stressful lifestyle

6. Cataract:
Cataract is basically an opacification of the crystalline lens of the eye. This affects the clarity of the vision. Cataracts are common in older people. It can be diagnosed by getting a comprehensive eye test done by a qualified eye specialist. It can be removed by a simple painless surgery. Patients are usually discharged 10 minutes after the procedure at our center.

7. Macular Degeneration:
The macula is the central part of the retina which controls visual acuity. This part is responsible for the accuracy of activities like reading, driving, usage of devices etc, When this part of your eye begins to degenerate, your central vision, that is, your ability to view straight ahead will begin to falter. However, your peripheral vision, which is the ability to view sideways doesn’t get affected by this.

8. Intracranial hemorrhage:
Intracranial hemorrhage is a life-threatening emergency which requires medical care. It refers to bleeding inside the skull or brain. Symptoms include sudden tingling, weakness, numbness, paralysis, severe headache, difficulty with swallowing or vision, loss of balance or coordination, difficulty understanding, speaking, reading, or writing, and a change in the level of consciousness or alertness, marked by stupor, lethargy, sleepiness, or coma. Such intracranial hemorrhage is one of the likely causes of blindness.

9. Chlorine poisoning:
The common perception of chlorine is that it is used in swimming pools. But apart from being mixed in pools, chlorine is added to a lot of household cleaning chemicals, due to its antibacterial nature. This chlorine is highly toxic if it comes into contact with eyes. In the event of chlorine poisoning immediately flush your eyes with water continuously and rush to a hospital for medical attention.

10. Eye Emergencies:
Foreign objects in the eye, chemical poisoning, injury to the eye and burns are treated as eye emergencies. As soon as you find bleeding or persisting irritation or swelling or other abnormality, rush to a hospital. Don’t rub your eye or apply pressure to it; Do not attempt to remove a foreign object with sharp tools; Do not use medicines or ointments without medical prescription.

Dear Chennai people, get the best treatment for any kind of eye problem at R.K. Eye Centre. R.K. Eye Centre was founded by one of the top 3 ophthalmologists of the city. Get the best treatment and service at R.K. Eye Centre.

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