Coloboma comes from the Greek word koloboma, meaning curtailed. It is used to describe a developmental defect of the eye occurring at embryonic stage. It can involve one or more ocular structures, including the cornea, iris, ciliary body, lens, retina, choroid and optic disc.
Blood sugar tests include several different tests that measure the amount of sugar (glucose) in a person's blood. These tests are performed either on an empty stomach, or after consuming a meal or pre-measured glucose drink. Blood sugar tests are done primarily to diagnose and evaluate a person with diabetes mellitus.lood sugar tests include several different tests that measure the amount of sugar (glucose) in a person's blood. These tests are performed either on an empty stomach, or after consuming a meal or pre-measured glucose drink. Blood sugar tests are done primarily to diagnose and evaluate a person with diabetes mellitus.
1 Hemoglobin A1c, or glycohemoglobin, measures how much sugar (glucose) is stuck to red blood cells. 2  This test can be used to diagnose diabetes. 3  It also shows how well your diabetes has been controlled in the past 2 to 3 months and whether your diabetes medicine needs to be changed.