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Vision Problems – Causes and Symptoms of Vision Problems

Many kinds of visual problems or disturbances have been observed. The common list of visual problems seen in people include – blind spots, blurred vision, floaters, halos and other symptoms. Loss in the vision sharpness and and ability to locate small details is termed as blurred vision. This is one of most common problem related to vision.
Sometimes, people complain of dark holes being seen in their field of vision and through these holes they cannot see anything. Such sign is called blind spots or scotomas.

Any such conditions of changes in vision, appearance of blind spots, blurriness, halos around lights or disturbances in vision must be always evaluated by a medical professional. Because, these changes may be a sign of aging, eye disease, eye injury or a medical condition like diabetes. The causes can be numerous but should never be ignored. The signs of eye problems can get worse and affect your life to a great extent.

Causes of Visual Problems

In reference to medical science, there are three chief causes of myopia or eye problems. These are wrong food habits, mental strain and improper nerve and blood supply. Among these, mental strain is the most common cause of eye problem. Our mental stress can affect our eye physical applying a physical pressure on the muscles and nerves of the eye. There are a few mistakes people commit, which affect their eyes adversely. A few of these are –

  • reading in insufficiently low or dim light
  • glaring at light for longer hours
  • reading in an excessively high intensity light
  • reading in moving vehicles like buses, trains or cars
  • watching television and films excessively
  • stressful reading hours

There are several conditions that can cause visual problems. These are –

  • Brain Tumor
  • Bleeding into the eye
  • Cataracts – This is a common optical condition in elderly people. Symptoms of visual problems in Cataracts include –
    • appearance of cloudiness over the eye lens
    • halos around lights
    • poor vision at the nighttime
    • sensitivity to glare
    • generally vision is not affected during the daytime
  • Diabetic retinopathy – Diabetes may lead to eye complication in sever cases. It can cause bleeding into the retina leading to blindness. Such a medical complication is termed as Diabetic retinopathy.
  • Eye injury, eye infection or inflammation
  • Floaters – Most of us would have definitely observed some tiny particles drifting across the eye. These are called floaters. These floaters are observed for a brief period and are mostly harmless. But in rare cases, these can be a sign of retinal detachment.
  • Fatigue
  • Glaucoma – Increase in pressure on the yes can lead to Glaucoma which is often sudden and cause the following symptoms of vision problems –
    • poor vision during night time
    • loss of vision to either side
    • blind spots
  • Medication – Some medicines can affect the eyesight. So it is always advisable to talk to your physician in case of unreasonable sign poor vision is observed. The common medicines that can affect vision include
    • antihistamines
    • anticholinergics
    • temporary effects by digitalis derivatives
    • medicines curing high blood pressure (thiazide diuretics, guanethidine and reserpine)
    • indomethacin
    • phenothiazines
    • malaria medication
    • ethambutol medication to treat tuberculosis
  • Myopia – Myopia is popularly known as short-sightedness. A person suffering from myopia looses its ability to view far-off objects clearly unlike a normal person. Myopia is one of the most common eye problem.
  • Migraine – Prior to starting of an episode of migraine, halos, spots of light or zigzag patterns may be observed. But if visual symptoms are observed without any headache, then it is termed as Ophthalmic migraine.
  • Macular degeneration – Macular degeneration is one of the most common cause of blindness in elderly people above 60 years of age. The symptoms of Macular degeneration are as follows –
    • blurred vision may be felt during reading
    • loss of central vision
    • distorted vision or finding wavy lines in vision
    • colors appearing faded
  • Optic neuritis – The optic nerve (the main nerve in the eye which is connected directly to the brain) may get inflammed or infected due to multiple sclerosis. This causes pain in the eye while attempting to move or touch the eyelid.
  • Over-exposure to outdoors – When we expose ourselves to sunlight or over glary lights, then a temporary blurred vision may be noticed. This is a reversible condition.
  • Presbyopia – When focusing gets extremely difficult at objects lying close to us, it is called Presbyopia. This condition is common in elderly.
  • Retinal detachment – The common signs of retinal detachment include –
    • floaters
    • sensation of a shade hanging on one side of a visual field
    • flashes of light seen across the visual field
    • a sensation of a curtain hanging on a side of the visual area
  • Stroke
  • Temporal arteritis – An artery which supplies blood to the optical nerve gets inflamed in the brain, it is termed as Temporal arthritis.

Symptoms of Vision Problems

  • Vision may appear blurred to see far-off objects
  • Difficulty in identifying letters on the blackboard
  • Inability to identify people on the screen in the cinema hall
  • TV screen appearing blurred
  • Eyes beginning to water on little pressure
  • Severe itching in the eyes
  • Eyes feeling very heavy and the symptom lasts for longer time
  • Mild headache
  • Bloodshot eyes
  • Swelling seen around eyes
  • Abnormal sensitivity to light
  • Appearance of a white spot in the eye

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