[Advances of study on the formulae based on a correlation and linear regression between the potassium concentration in the vitreous humor and the post-mortem interval and the factors which modifies the relationship].

In this paper we reviewed the formulae and analyzed the factors which modified the relationship and estimate the time of death as precise as possible by potassium concentration in vitreous humor. The extra factors including numbers of the cases, cause of death, different eye of both, the urea or/and creatinine in vitreous humor, environmental temperature, sampling techniques, experimental and analytical method were also mentioned.