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F. R. Stefanini, C. P. Barbosa, F. Penha, M. Â. Góes, Jr., A. Paranhos Jr.; Anterior Chamber Depth During Hemodialysis Session. Invest. Ophthalmol. Vis. Sci. 2007;48(13):3922.
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To evaluate intraocular pressure (IOP) and anterior chamber depth in patients during hemodialysis session.
A prospective, observational case series was developed. Axial diameter and anterior chamber depth were measured using US biometry. IOP was evaluated using Tonopen tonometer. Body weight and blood pressure were also measured. 37 eyes of 20 patients were evaluated in 3 different times during hemodialysis session. Analyses of variance for repeated measurement and linear regression were performed.
There was no difference in the axial diameter between the three measurements (p=0.088), also seen in the regression analysis (p>0.05). The same results were found for anterior chamber depth (p=0.105, p>0.05). One patient had a fluctuation of more than 25% of the anterior depth. The IOP also did not change significantly during the exam (p=0,733). IOP and anterior chamber depth did not correlate significantly with body weight and blood pressure (p>0.05).
Our results did not support the idea of significant changes on anterior chamber depth during the hemodialysis to justify some cases of acute angle closure glaucoma. However, one outlier in our population (difference more than 25%) could give us an idea that this phenomenon, for some reason, could happen for specific patients with narrow angles.
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