Measurement of Foveal Avascular Zone Dimensions and its Reliability in Healthy Eyes Using Optical Coherence Tomography Angiography

The authors mentioned that FAZ area may be independently affected by age, although the evidence for this remains uncertain, and varies between different studies.2,3,6 In addition, other factors such as sex, central retinal thickness and volumes, and refractive error have been shown to influence the...

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Published in:American journal of ophthalmology 2016-05, Vol.165, p.201-202
Main Authors: Tan, Colin S, Lim, Louis W, Cheong, Kai Xiong, Chow, Vernon S, Chay, Isaac W, Tan, Shoun
Format: Article
Language:English
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Medical imaging
Ophthalmology
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Summary:The authors mentioned that FAZ area may be independently affected by age, although the evidence for this remains uncertain, and varies between different studies.2,3,6 In addition, other factors such as sex, central retinal thickness and volumes, and refractive error have been shown to influence the size of the superficial and/or deep FAZ.2,6 It is important for ophthalmologists to be cognizant of the fact that both the superficial and deep FAZ size show considerable variability even in normal subjects.1-5 This would potentially confound assessment of whether the FAZ appears "normal" on an OCTA scan, and we agree with the authors that comparing the FAZ dimensions with that of the contralateral eye is useful.
ISSN:0002-9394
1879-1891
DOI:10.1016/j.ajo.2016.02.035