The answer to âwhat is CRM processâ may sound straightforward but it entails approaches, systems and technologies to compile information on customers across different channels or points of contact between your company and the customers.
Any type of vision loss (e.g. blindness, blurred vision, double vision, etc.) is a symptom of great concern. Many of the causes are very serious medical conditions. Certain types of vision changes can be a medical emergency where delay can lead to loss of sight (e.g. for causes such as glaucoma, eye injury, retinal detachment) or loss of life (e.g. for causes such as stroke, TIA, etc.).
There are different causes of bad eyesight depending on the part of eye that is malfunctioning. Sometimes the problem lies with the nerves that carry signals between the eye and brain, or with the visual centers in the brain, but these are relatively uncommon. The most common problems are refractive errors of the eye.