Vergence-accommodation conflict potential solutions in augmented reality head mounted displays

The augmented reality (AR) has been developed dramatically in recent years, and it has being widely used in military training, medical treatment, education and so on. While the vergence-accommodation conflict (VAC) remains a major problem in head mounted displays (HMD) for augmented reality. In this review, we discuss the cause of the vergence-accommodation conflict in augmented reality, and introduce the various methods to solve the VAC, along with the advantages and shortcomings.