Influence of chemical compositions of anterior chamber aqueous humour and blood serum on the secretion of intraocular fluid

Vestnik oftalmologii
A P ErmolaevL I Melnikova

Abstract

to identify the standard chemical composition of anterior chamber aqueous humour (AH) using energy dispersive spectrometer (EDS) integrated in scanning electron microscope (SEM); to study the influence of concentration gradient of chemical elements between aqueous humor and blood serum (BS) on the secretion of intraocular fluid (IOF) at normal and increased intraocular pressure (IOP). The study involved two groups of patients consisting of 33 people (33 eyes) each. The 1st group included patients with cataract and normal IOP (control), the 2nd group included patients with POAG and decompensated IOP. The samples (AH and BS) were taken during surgeries and studied using Oxford X-Max50 EDS integrated in EVO LS10 SEM. The concentration ratios (mmol/l) of AH/BS for Na at normal IOP was 1.472/1.278, for K - 0.106/0.035. In cases with POAG with decompensated IOP, the concentration ratio of Na was 1.424/1.248, K - 0.114/0.036. The concentration ratio of N between AH in cases with decompensated IOP and AH of normotonic eyes was 1.151/0.960, for S - 0.020/0.012. Consistent excess of Na and K concentrations in AH compared to BS indicates active participation of these osmotically active elements in the normal process of intraocular fluid s...Continue Reading

References

Jan 1, 1977·Experimental Eye Research·D F Cole
Jan 1, 1976·Physiological Reviews·J J Grantham
Oct 4, 1995·Biochemical and Biophysical Research Communications·C P WilliamsR Chalkley
Apr 1, 1996·Acta Ophthalmologica Scandinavica·G G KoliakosA C Trakatellis
Oct 16, 2003·Toxicon : Official Journal of the International Society on Toxinology·I B SundellR D G Theakston
Jan 29, 2005·Journal of Aging and Physical Activity·M Elaine CressWojtek Chodzko-Zajko
Jun 17, 2008·The British Journal of Ophthalmology·R L BruhnR J Noecker
Apr 1, 2015·Saudi Journal of Ophthalmology : Official Journal of the Saudi Ophthalmological Society·Suneeta DubeyGordon Douglas

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