On the ocular findings in ochronosis: a systematic review of literature

BMC Ophthalmology

Table 1 Overview: articles found in medline/web of science search that were excluded from our analysis

References	Reason for exclusion	n
[33, 34]	Full text not accessible	2
[35–39]	Not case report or case series	5
[40–47]	Not published in English, German, French, Spanish or Italian	8
[48]	Case double published	1
[49–51]	Not relevant	3
[12, 52–69]	No documentation of proper ophthalmologic examination	20
Sum		39

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