Myopia is said to be caused by an elongation of the eyeball. This means that the oblong (as opposed to normal spherical) shape of the myopic eye causes the cornea and lens to focus at a point in front of the retina.
1 Bonds pay interest every six months until they mature. When a bond matures, the owner is paid the face value of the bond. 2  Bonds can be held until maturity or sold before maturity.  More about Treasury bonds rates and terms in the Research Center.
The next interest payment is in April 2016. All bonds bought in 1986 are currently earning 4% until their final maturity date. So you do want to pay attention to when the next interest payment is made onto the bonds. Savings bonds bought earlier in the year in 1986 paid the 7.5% for first 10 years. The bonds bought in November and December 1986 paid 6% for the first 12 years.