Lundmark PO, Skjöld GB, Nævdal PA, Volden OK, Belgum M. Use of the ISNT rule for optic disc evaluation in 40 to 79 year old patients seen in optometric practice. Scand J Optom Vis Sci [Internet]. 2022 Oct. 4 [cited 2024 Apr. 29];3(1):s. 16-22. Available from: https://open.lnu.se/index.php/sjovs/article/view/3358