Near sightedness is a condition whereby the eyeball is too long or cornea has excess curvature such that light entering the eye is focused in front of the retina rather on the retina itself.
The exact cause of nearsightedness is unknown but there are two factors that may be responsible for its development.
1. Visual stress
2. Heredity
Individuals who spend considerable time reading or working at a computer or engage in other types of intense close visual work may develop nearsightedness.
There is credible evidence that many people inherit nearsightedness or are at least predisposed to the condition, especially if both parents suffer from the condition.
Far sightedness (hyperopia) is a condition where the eye is shorter than normal, the cornea is not curved quite enough or the lens sits further back in the eye than is normal.
This condition can be inherited especially if both parents suffer from it.
The other cause is through diseases like diabetes or glaucoma.
Random sampling means that members of a 'population' have equal chances of being selected. To carry out this type of sampling, you will need to use a table of random numbers.
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Answer:
As she is not controlling the blood sugar and has been urinating excessively, she probaly is in hyperglycemia crisis.
Explanation:
Diabetes is a chronic disease where the increase does not produce enough insulin or when the body cannot use it effectively. An insulin or hormone that regulates blood glucose and is critical to maintaining the body's well-being, which needs its energy to function.
Type 1 Diabetes: the cause of this type of diabetes is still unknown and the best way to prevent it is through healthy living practices (eating, physical activity and avoiding alcohol, tobacco and other drugs). People with type 1 diabetes should administer insulin daily to regulate the amount of glucose in their blood.
Hyperglycemia is characterized by the presence of high blood sugar (glucose), which may be caused by overeating, lack of exercise or, for diabetics, lack of insulin and may progress over the course of a day or several days. The main symptoms of high sugar in a diabetic people are: increased urination, thirst and hunger. Fatigue, restlessness and weight loss may also be less common symptoms. Although these symptoms do not always mean that you have hyperglycemia.