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We read with interest the article by Fogagnolo et al1 titled ‘Long-term perimetric fluctuation in patients with different stages of glaucoma’. Judging visual field progression is a challenging task because of the subjective nature of the test as well as the long-term and short-term fluctuations in the threshold estimations. We compliment the authors for their efforts to quantify the long-term perimetric fluctuation (LF) in patients with different stages of glaucomatous visual field loss. However, we would like to highlight a couple of …
Competing interests None.
Provenance and peer review Not commissioned; internally peer reviewed.