Abstract:
PURPOSE:To measure the concentrations of iron, copper and zinc in human vitreous and to interpret their levels with various vitreoretinal diseases like proliferative diabetic retinopathy, retinal detachment, intraocular foreign body, Eales' disease and macular hole. METHODS:Undiluted vitreous fluid collected during pars plana vitrectomy was used to measure trace elements using an atomic absorption spectrophotometer. RESULTS:The level of vitreous iron increased threefold in Eales' disease (1.85 +/- 0.36 pg/ml), 2.5-fold in proliferative diabetic retinopathy (1.534 +/- 0.17 pg/ml) and 2.3-fold in eyes with intraocular foreign body (1.341 +/- 0.25 pg/ml) when compared with macular hole (0.588 +/- 0.16 pg/ml). This was statistically significant (P < 0.05). Zinc was found to be low in Eales' disease (0.57 +/- 0.22 pg/ ml) when compared with other groups, though the difference was not statistically significant. CONCLUSION:The increased level of iron with decreased zinc content in Eales' disease confirms the earlier reported oxidative stress mechanism for the disease. In proliferative diabetic retinopathy and intraocular foreign body the level of iron increases. This is undesirable as iron can augment glycoxidation, which can lead to increased susceptibility to oxidative damage, in turn causing vitreous liquefaction, posterior vitreous detachment and ultimately retinal detachment and vision loss.
journal_name
Indian J Ophthalmoljournal_title
Indian journal of ophthalmologyauthors
Konerirajapuram NS,Coral K,Punitham R,Sharma T,Kasinathan N,Sivaramakrishnan Rkeywords:
subject
Has Abstractpub_date
2004-06-01 00:00:00pages
145-8issue
2eissn
0301-4738issn
1998-3689journal_volume
52pub_type
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abstract:: ...
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journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
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pub_type: 杂志文章
doi:
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pub_type: 杂志文章
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更新日期:2014-09-01 00:00:00
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