The Chow surname is a Chinese surname for people from the Chou Dynasty, its main lineage. The name Chow means to encircle in ancient China. Otherwise, in ancient pre-history times, it was the shortened form of Jehovah (God's name)...
Posterior Capsular Opacification: This is the occurrence of a membrane that is hazy (capsule) right behind the intraocular lens implant. This disorder is often denoted as âsecondary cataractâ, although this term is a misnomer since when a cataract is removed it will not develop again.
Definition and Visual Determination of Opacity . Method 9 . With regards to stack emissions, opacity is the degree to which visibility of a background (i.e., blue sky) is reduced by particulates (smoke). The EPA Method 9 Opacity Observation Form, provided in Appendix A, is the enforceable monitoring record which evaluates the quantitative 20% opacity limit.