Vitamin A deficiency or VAD is seldom seen with people who live in the developed countries. This is because the governments of these countries have taken enough precautions and provide fortified foods to the people to overcome this problem. The people living in these countries are also knowledgeable enough to take adequate precautions. People in the developing and third world countries have to contend with VAD. The governments are either ill-equipped to deal with it or they just are inefficient. It is proven that VAD is reversible and people can recover if it is identified in the beginning stages and proper medication is given. Here are some of the symptoms that pertain to Vitamin A deficiency:
- Blurred vision/night blindness: Rhodopsin is an eye pigment that is responsible for vision in dim or low light. Its development is linked to the availability of vitamin A in the body. Vitamin A deficiency causes this pigment to stagnate and wither away. The early symptom of this process is the blurring of vision in low light. If people find it increasingly difficult to spot objects in low light, it has to be because of this pigment. Early detection and prescribed dosage of vitamin A can gradually improve the vision and eventually restore it to normalcy. Lack of proper treatment will definitely lead to permanent blindness and sometimes even death.