An example of one of these devices is a column chromatography bed, meaning that the stationary bed is in a tube. In some situations, chromatography is used as a method of purification. This is referred to as preparative chromatography. Another use of chromatography is analytical chromatography. This method of separation occurs with smaller amounts of material and is used to measure analytes in a mixture.
Flashing lights and floaters may be the initial symptoms of a retinal detachment or of a retinal tear that precedes the detachment itself. Anyone who is beginning to experience these symptoms should see an eye doctor (ophthalmologist) for a retinal exam.
At East Carolina Retina Consultants, Dr. Van Houten is well-versed in diagnosing and surgically treating cases of retinal detachment and can help you discover the most effective treatment plan for you. Symptoms & Types: Most tears occur in the peripheral retina, which will cause a loss in a portion of side vision initially after a detachment. Common symptoms of a retinal detachment are floaters or flashes in your field of vision. Floaters are strings or clumps of the liquid vitreous (from the center of your eye ball) that have aged and broken off; appearing as strings, globs or dots.