Vision changes and problems can be caused by many different conditions. Presbyopia -- difficulty focusing on objects that are close. This problem often becomes noticeable in your early to mid 40s. Cataracts -- cloudiness over the eye lens, causing poor nighttime vision, halos around lights, and sensitivity to glare. Cataracts are common in the elderly. Glaucoma -- increased pressure in the eye, which is most often painless. Vision will be normal at first, but over time you can develop poor night vision, blind spots, and loss of vision to either side. Glaucoma can also happen suddenly, which is a medical emergency. Diabetic eye disease.
The normal blood glucose level (tested while fasting) for non-diabetics, should be between 3.9 and 5.5 mmol/L (70 to 100 mg/dL). The mean normal blood glucose level in humans is about 5.5 mmol/L (100 mg/dL); however, this level fluctuates throughout the day.he normal blood glucose level (tested while fasting) for non-diabetics, should be between 3.9 and 5.5 mmol/L (70 to 100 mg/dL). The mean normal blood glucose level in humans is about 5.5 mmol/L (100 mg/dL); however, this level fluctuates throughout the day.
Share to: The normal blood glucose level in humans is about 4 mM (4 mmol/L or 72 mg/dL).The body, when operating normally, restores the blood sugar level to a range of about 4.4 to 6.1 â¦ mmol/L (82 to 110 mg/dL).Shortly after eating the blood glucose level may rise temporarily up to 7.8 mmol/L (140 mg/dL).hat mean the normal sugar level es 70 - 110 mg/dl in a healthy person. Below 70mg/dl is considered hypoglycemia, and above 120mg/dl hyperglycemia. Blood sugar level of 130mg/dl was consider normal long time ago, but no any more. Today is consider a prediabetic condition.