has been used over regular therapeutic methods in order to treat a number of disorders. Some factors to consider when virtual rehabilitation include cultural sensitivity, accessibility, and ability to finance the virtual therapy. Advantages Virtual rehabilitation offers a number of advantages compared to conventional therapeutic methods: It is entertaining, thus motivating the patient; Potential for involvement of the patients' stimulus modalities for more realistic environments for treatment. It provides objective outcome measures of therapy efficacy (limb velocity, range of movement, error rates, game scores, etc.); These data are transparently stored by the computer running the simulation and can be made available on the Internet. Virtual rehabilitation can be performed in the patient's home and monitored at a distance (becoming telerehabilitation) The patient feels more actively involved in the desensitization The patient may "forget" they are in treatment or undergoing observation resulting in more authentic expressions. Effective for hospitals to reduce their costs because of lowered cost of medicine and equipment. Great impact of virtual reality on pain relief Disadvantages Despite all the merits of VR therapy as listed in the sections above, there are pitfalls and obstacles in the development of widespread VR solutions. Cost effectiveness: VRET may show promising returns on investment but the fact remains that the true development cost of VRET environments depends heavily on the choice of hardware and software chosen. Treatment effectiveness: For the treatment to take effect, a patient should be able to successfully project and experience their anxiety in a virtual environment. Unfortunately, this projection is highly subjective and personalised per patient; and outside the control of the therapists. This limitation might adversely impact the therapy. Migrating back to reality from virtual reality: Another skepticism is the correlation between virtual reality and actual reality. If a patient successfully combats their phobia in a virtual environment, does that guarantee success in real life too? Further, when treating more complicated ailments such as schizophrenia, there is inadequate projection on how delusions and hallucinations may translate from the real world to the virtual one. VR sickness: Movement in a virtual environment is said to cause visual discomfort. Prolonged periods of exposure to VR may lead to side effects like dry eyes, headaches, nausea and sweating; symptoms similar to motion sickness. Ethical and legal considerations: Since VR is a relatively new technology, its ethical implications are not as comprehensive as other forms of treatment. There is a