ABSTRACT
This work gives light on the ocular changes in the early postmortem period. These changes included the intraocular pressure [I.O.P], fundus and electrolytes in the vitreous humour. Fifty corpses with an accurately known time of death were examined in Al-Zahraa University Hospital. The corpses were divided according to the cause of death into pathology group and trauma group. In the pathology group, there was a slow gradual decline in the I.O.P, while in the trauma group, a rapid sharp decrease in the I.O.P was recorded. Fundus examination 30 minutes after death showed a markedly pale optic disc. After one hour, all the retina and the macula became pale and oedematous. Two hours after death, there was a rise in the vitreous potassium, while sodium, chlorides and calcium showed a slight reduction in their vitreous concentrations. It is suggested that, evaluation of the postmortem changes of I.O.P, fundus and electrolyte concentrations in the vitreous humour may be of great value in determining the time of death
Subject(s)
Humans , Intraocular Pressure , Vitreous Body , Fundus Oculi , Electrolytes , Cadaver , Cause of Death , Forensic Medicine , Calcium , Potassium , Sodium ChlorideABSTRACT
High incidence of uraemic patients in Egypt are suffered from severe visual deterioration in spite of having clear media. This deterioration is attributed to retinal vascular abnormalities, macular pigment degeneration and ischaemic changes of the choroid and optic nerve. To evaluate the causes and incidence of visual impairment in uraemic patients undergoing haemodialysis; this study was performed on fifty patients attending Al Zahraa University Hospital between [1994-1996]. Seventeen patients with duration of dialysis more than 30 months [group I] and thirty-three patients with duration of dialysis less than 30 months group [II]. Our Study proved that there are variable degrees of choroidal and macular fluoroangiographic changes together with a variety of field defects in both groups with a less severity in group II