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Vision loss

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At the outset we must make it clear that vision loss is not blindness. It involves losing proper sight with one eye or with both eyes which could happen all of a sudden or might be progressive. We shall discuss various other attributes of vision loss in the upcoming segment.


Symptoms of vision loss

You are most likely to experience the following symptoms in both eyes or in one. 

  • Dimming of vision or loss of clarity in vision
  • Blurriness, fogginess, double vision
  • Appearance of spots before eyes
  • Complete loss of vision in one eye
  • Difficulty in seeing in dim light
  • Trouble in moving ahead while walking
  • Increased sensitivity to light 
Along with the aforementioned symptoms you might also experience pain, swelling and discharge from eyes and observe change in the anatomy of eyes.


What causes vision loss?

Any kind of trauma, injury, inflammation, disease or infection that affects the components of your eyes (which include cornea, iris, pupil, optic nerves, lens, macula, and eye fluid) can lead to loss of vision.

Risk factors for vision loss are:

  • Glaucoma
  • Cataract
  • High refractive error
  • Macular degeneration
  • Diabetes mellitus
  • Retinitis pigmentosa
  • Optic neuritis, compression of optic nerves
  • Diabetic retinopathy
  • Hereditary Retinal Dystrophies
  • Retinal detachment
  • Vitreous haemorrhage  
Loss of vision could also be a consequence of head injury, brain damage, brain tumour or pituitary tumour and nutritional deficiency. Medicines like tuberculosis drugs, tamoxifen, tetracyclines, systemic steroids, etc. can also induce vision loss as one of their side effects.


When to see a doctor

Even if your vision is normal, ideally you should go for an eye check up one in two years. However, if you observe any of those aforementioned problems then do not delay.

Loss of vision can eventually lead to blindness and bring about a drastic change in your life. So take care of your eyes.


Diagnosis for vision loss

Loss of vision is certainly a complicated condition and is diagnosed very meticulously. Your eye specialist would carefully observe the symptoms and associated attributes like: 

  • Since when you have noticed- vision loss is sudden or gradual
  • The problem is in one eye or both eyes
  • Type of vision loss – peripheral, central, etc
  • History of medical condition and medicines you are taking
  • Incidence of injury both recent and past
  • Other symptoms associated other than vision problems 

Your doctor will conduct a comprehensive eye exam which comprises of different kinds of eye tests and procedures capable of detecting the problem.

If your vision loss is a side effect of other health complications like diabetes, stroke, etc. then you need to undergo other tests specific to your medical condition.


Treatment of vision loss

The treatment is absolutely dependent upon the diagnostic reports. It’s important to note that vision loss cannot be corrected through corrective glasses and your doctor would give you visual aids and devices to manage condition of your eyes. Some examples are reading prisms, telescopic glasses, lenses for filtering light, magnifying glasses, etc.

Surgery is one mode for improving vision for in case of cataract, glaucoma, macular degeneration and many more.

Apart from this your doctor would advise you to attend adjustment classes and vision loss management sessions where you will be taught various techniques to cope with your eye condition and lead a normal life.

Written by: healthplus24.com team
Date last updated: August 17, 2014

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