Research Progress on Estimation of Postmortem Interval Based on Ocular Tissues Structure

Estimation of postmortem interval （PMI） is one of the important research contents in forensic pathology， and it has always been the focus and hot spot of research work. In recent years， scholars at home and abroad have made some research progress in estimating PMI by using ocular tissue. After death， the changes of cornea， aqueous humor， iris， lens， vitreous humor and retina all show time sequence change rule highly related to PMI. This paper reviews the research progress of PMI estimation based on the morphological， biochemical， molecular and genetic material changes of different ocular tissue structures after death， and discusses the existing problems and development trends.