What is Blindness, and What Causes it?

Health Impress 2021

To answer the question “what is blindness” one has to know that the inability to see anything, including light, is what is referred to as blindness. On the other hand, one has limited eyesight if one is partially blind. You may, for example, experience fuzzy vision or be unable to discern between the shapes of objects. You can’t see anything and are in complete darkness if you’re completely blind.

Legal blindness is a condition in which one’s vision is severely impaired. A legally blind person can only see from 20 feet distant what a person with healthy vision can see from 200 feet away. If you suddenly lose your ability to see, get medical help straight away. Make arrangements for someone to take you to the emergency department for treatment. Don’t hold your breath for your vision to return. Depending on the source of your blindness, seeking therapy as soon as possible may improve your chances of regaining your eyesight. Surgery or medication may be used to treat the condition.

What Are Blindness’s Signs and Symptoms?

You can’t see anything if you’re fully blind. You might have the following symptoms if you’re partially blind:

  • Hazy vision,
  • Difficulty to perceive shapes, and just seeing shadows
  • Night vision is poor.
  • vision via a tunnel

Infants’ Symptoms of Blindness

What is blindness
What is blindness

The visual system of your child begins to grow in the womb, but it will not be fully formed until your child is about two years old. Your infant should be able to fix their sight on an object and follow its movement by the age of 6 to 8 weeks. Their eyes should be properly aligned and not turned inward or outward at the age of four months. Visual impairment in young children can manifest itself in a variety of ways, including:

  • Continual eye rubbing
  • Chronis tears from the eyes
  • Severe light sensitivity
  • Poor concentration
  • Chronic eye redness
  • A white rather than a black pupil
  • Poor visual tracking, or difficulty following an item with their eyes
  • At 6 months of age, irregular eye alignment or movement

What Causes Blindness and How Can It Be Prevented?

Blindness can be caused by the following eye disorders and conditions:

  • Glaucoma is a group of four eye diseases that can harm your optic nerve, which transmits visual information from your eyes to your brain.
  • Macular degeneration is a disease that affects the area of your eye that allows you to see fine details. It mainly affects people in their fifties and sixties.
  • Cataracts result in hazy eyesight. They are more common in the elderly.
  • It can be difficult to perceive details if you have a lazy eye. It has the potential to cause eyesight loss.
  • Optic neuritis is an inflammation of the optic nerve that can result in temporary or permanent vision loss.
  • The term “retinitis pigmentosa” refers to retinal damage. Only a small percentage of cases result in blindness.
  • Blindness can also be caused by tumors that affect the retina or optic nerve.

If you have diabetes or have had a stroke, you could become blind. Other major causes of blindness include birth defects, eye traumas, and problems after eye surgery.

Causes of Infant Blindness

In babies, the following conditions can impair vision or cause blindness:

  • pinkeye – blocked tear ducts – cataracts – strabismus (crossed eyes) – amblyopia (lazy eye) – ptosis (droopy eyelid) – congenital glaucoma
  • – retinopathy of prematurity, which occurs in preterm babies when the blood vessels supplying their retina aren’t fully matured – visual inattention, or a delay in your child’s visual system’s development

Who is at Risk of Becoming Blind?

Blindness is a threat to the following groups of people:


  • persons with eye problems such macular degeneration and glaucoma – people who have diabetes – people who have had a stroke
  • persons who work with or near sharp items or harmful chemicals – premature babies – people who have had eye surgery

What Is the Process of Diagnosing Blindness?

An optometrist will do a complete eye exam to establish the source of your blindness or partial vision loss. A series of tests will be performed by your eye doctor to assess the quality of your vision, the function of your eye muscles, and the response of your pupils to light. A slit lamp, which is a low-power microscope paired with a high-intensity light, will be used to assess the general health of your eyes.

Blindness in Infants: Diagnosis and Treatment.

Shortly after birth, your infant will be screened for eye abnormalities by a pediatrician. You should have your child’s visual acuity, focus, and eye alignment checked again at 6 months of age by an eye doctor or pediatrician. Your baby’s eye structures will be examined to discover if they can follow a light or colorful item with their eyes.

By the age of 6 to 8 weeks, your infant should be able to pay attention to visual stimuli. You should have your child’s eyes tested straight away if they don’t react to light beaming in their eyes, or focus on colored objects, by the age of two to three months. If you observe crossed eyes or other signs of vision impairment, you should have their eyes tested.

What Is the Treatment for Blindness?

One or more of the following may help restore your vision in some cases of vision impairment:

  • Contact lenses – prescribed by your eye doctor / eye health professional
  • Prescription eyeglasses – prescribed by your eye doctor / eye health professional
  • Medicine – prescribed after a thorough examination has been done
  • Surgery – only done after a professional eye doctor says so

Your doctor will advise you on how to function with restricted vision if you have partial blindness that cannot be corrected. You can read with a magnifying glass, expand the text size on your computer, and listen to audio clocks and audiobooks, for example. Complete blindness necessitates a fresh perspective on life and the acquisition of new abilities. You may, for example, need to learn how to:

  • Make use of a guide dog
  • Learn the ability to read Braille
  • Organize your home so that you can quickly locate items.
  • Learn how to use your phone’s keypad.
  • To distinguish bill amounts, fold money in different ways.
  • You may also require the installation of handrails in your bathroom.

What Are the Long-Term Prospects?

Treatment that is preventive and sought quickly has a better long-term outlook for recovering vision and decreasing visual loss. Cataracts can be efficiently corrected with surgery and do not always result in blindness. In cases of glaucoma and macular degeneration, early detection and treatment are also critical to assist stop vision loss.

How Can Blindness Be Prevented?

  • Regular eye examinations can help diagnose problems and prevent vision loss.
  • Treatment with medicine can help avoid blindness if you’ve been diagnosed with certain eye disorders, such as glaucoma.
  • To help prevent vision loss, get your child’s eyes evaluated at 6 months, 3 years, and every two years between the ages of 6 and 18 years old.
  • Make an appointment with their eye doctor right away if you discover symptoms of vision loss between routine visits.

Conclusion to what is blindness

Blindness is a condition that many people have regretted having, simply because they didn’t take action on time. By the time they realized, it was too late for any intervention to be applied. Whenever you have any issue with your eyes, just as it is with any part of the body, be quick to see your doctor who will, in turn, request you to see a specialist for the needful to be done.

Take care!

Leave a Reply

Your email address will not be published. Required fields are marked *

Health Impress News Letter

Our Health Articles To Your Inbox?

Join our mailing list to receive the latest health articles from our team.

You have Successfully Subscribed!

This site uses cookies to offer you a better browsing experience. By browsing this website, you agree to our use of cookies.