Abstract
The optical see-through near-eye display finds wide applications in various areas such as medical treatment, education, tourism and entertainment. However, the vergence-accommodation conflict (VAC) is an obstacle in developing the optical performance of high quality. Conventional stereoscopic displays provide the virtual images in single focal plane, which cannot satisfy the accommodative perception of human eyes. In this review, we elaborate the causes of VAC, discuss various methodologies to solve the VAC problem and compare the advantages and shortfalls of typical designs. It is concluded that the mandatory software and hardware combining methods for the system is developing trend. A prospect is also given for the future development from the users’ perspective.
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