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A Complete Guide to Night-Blindness
What is Night Blindness?
With the word blindness, one might think of complete blindness after it is dark, well, that’s the whole myth. Night Blindness is a condition where a person is unable to see things clearly at dark or may face difficulties in seeing things in the dark. It is also called ‘nyctalopia’.
Though some category of night blindness can be treated with a proper diet and medication, some require surgery and there are some which cannot be treated at all. It’s better to consult an Eye specialist, that doing anything by one’s own self so that one can take necessary steps for its treatment.
What are the causes of Night Blindness?
Night Blindness can be caused due to various reason. The most common causes of night blindness are discussed below:
- Vitamin A Deficiency: We all have studied this during our school day. The deficit of Vitamin A causes or leads a person towards night blindness. Vitamin A, also called retinol, plays a role in transforming nerve impulses into images in the retina. The retina is a light-sensitive area in the back of your eye. Prescribe nutritional diet can help to restore the condition back to normal if diagnosed at the initial stage.
- Genetic Disorder: Like many other genetic factors, a person might also inherit disorder such as night-blindness. Usher syndrome, which is another related genetic condition that affects both hearing and vision.
- Abetalipoproteinemia: This is an inherited condition where a body may not absorb the required necessary nutrition from the food, which later may cause the deficiency of vitamins and minerals which will result in first cause mentioned above.
- Cataract: It is a condition of eye lenses were a dense cloudy appearance stands between the person and the clear vision. It develops slowly and eventually interferes with your vision. You might end up with cataracts in both eyes, but they usually don’t form at the same time. Cataracts are common in older people above 70 years.
- Diabetic retinopathy: It is a condition that occurs as a result of damage to the blood vessels of the retina in people who have diabetes. Diabetic retinopathy can develop if you have type 1 or 2 diabetes and a long history of uncontrolled high blood sugar levels. It might also result in total sight loss if remained untreated.
Eye Care-Check The Color Plates To Evaluate The State Of Color Blindness
For clicking the HD images we crave for getting a newer model with more and more megapixels, but do you know, of the resolution of a human eye is? It is round about 576 megapixels! Amazing right! The human eye indeed is a gift and it is important to take proper care of it. In India, we all must have had an eye test at least a couple of time in our life, but only a small proportion of people have been screened for color blindness in any eye hospital. The most common form of colorblindness is the green red deficiency.
So, today we bring you a series of a color plate to evaluate primarily whether your eye responds to color well or need a further check up in an eye specialist in the hospital. We present some of the selected plates of the original Ishihara plates, which is a set of 38 plates. Try to guess the number hidden in every plate and cross check with the answer and please be honest as it reflects the original state of your eyes.
Let’s get started,
In case, you are unable to see the proper number or see a different number, go to eye specialists and avail treatment for the same in a hospital. However, it is less likely to happen that you can’t see any of the number plates properly, indicating the state of total color blindness. Even if it was true, you would have realized that a long before (during everyday life) than you come across this particular blog.