Blurred vision, Dizziness, Floating spots or strings in vision and Lightheadedness. WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms blurred vision, dizziness, floating spots or strings in vision and lightheadedness including Middle ear infection, Labyrinthitis, and Benign eye floaters.
Body waves. Body waves are of two types: compressional or primary (P) waves and shear or secondary (S) waves. P- and S- waves are called body waves because they can travel through the interior of a body such as the Earth's inner layers, from the focus of an earthquake to distant points on the surface. The Earthâs molten core can only be travelled through by compressional waves.
The primary peristaltic wave forces the bolus down the esophagus and into the stomach in a wave lasting about 8â9 seconds. The wave travels down to the stomach even if the bolus of food descends at a greater rate than the wave itself, and continues even if for some reason the bolus gets stuck further up the esophagus.