Your blood sugar is at a level that is considered in the diabetic range.You should see your primary care physician to set up a blood panel. These results will give your doctor a lot of information. Ask the PCP to include a thyroid workup. Checking these levels are important. While thyroid disease is more prevalent in women, it also effects men and is known to cause fluctuation in your vision. Follow that with a comprehensive dilated exam by your eye doctor. PS 40 years old, lots of computer. Reading glasses may be in your NEAR future.

Robert F. Gilligan