Both can lead to vision problems; optic neuritis involves inflammation of the optic nerve while optic neuropathy refers to damage from any cause. Optic neuritis is one of the many causes of optic neuropathy. Optic neuropathies can be either hereditary or acquired. Acquired etiologies of optic neuropathy include ischemic, nutritional, and toxic types. 1,2 Drug-induced optic neuropathy is of the toxic type. Mechanisms of drug-induced optic neuropathy include mitochondrial dysfunction, disruption of blood flow to the optic nerve, and unknown mechanisms. 2
Fourth through eighth vehicle identification number digit reveals the vehicle features such as body style, engine type, model, series, etc. The ninth vehicle identification number digit is a VIN accuracy check digit, verifying the previous VIN numbers. This is how the check digit works/.
A Vehicle Identification Number (VIN) is the 17-digit string of numbers that an automotive manufacturer assigns to a specific vehicle that it produces. You can find out a lot about your car or truck if you are able to read and decode its VIN number, and that's why we are going to show you how to do just that.Before 1981, there was not any standardization of VINs on American model cars and trucks.ou can find out a lot about your car or truck if you are able to read and decode its VIN number, and that's why we are going to show you how to do just that. Before 1981, there was not any standardization of VINs on American model cars and trucks.