Vitreous body in the frontal parts of the eye (aqueous humour) which is continuously replenished, the gel in the vitreous chamber is stagnant. Therefore, if blood, cells or other byproducts of inflammation get into the vitreous, they will remain there unless removed surgically. These are known as floaters. If the vitreous pulls away from the retina, it is known as a vitreous detachment. As the human body ages, the vitreous often liquefies and may collapse. This is more likely to occur, and occurs much earlier, in eyes that are nearsighted (myopia). It can also occur after injuries to the eye or inflammation
Theology of the Body not address whether it was expedient or not to marry, but pointed out that there are "eunuchs" and some are so willingly for the sake of the kingdom of heaven. The fifth cycle discusses the sacrament of marriage. Pope John Paul II began his discussion of contraception on 11 July 1984 with the 114th lecture in this series. This section of the lecture series, the sixth and final part, is largely a reflection on "Humanae vitae", the 1968 encyclical of Pope Paul VI. In it, John Paul continued his emphasis on the design of the human body revealing God's truths.