{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T16:26:20Z","timestamp":1783009580919,"version":"3.54.5"},"reference-count":5,"publisher":"Springer Science and Business Media LLC","issue":"3","license":[{"start":{"date-parts":[[2023,8,7]],"date-time":"2023-08-07T00:00:00Z","timestamp":1691366400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2023,8,7]],"date-time":"2023-08-07T00:00:00Z","timestamp":1691366400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"University of Helsinki including Helsinki University Central Hospital"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Graefes Arch Clin Exp Ophthalmol"],"published-print":{"date-parts":[[2024,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Pupil diameter is a key parameter for corneal and multifocal intraocular lens surgery. Many devices are dedicated to measure the pupil size, but do not specify the illumination during capture. The aim of this study was to present illumination levels in routinely used ophthalmic devices which present pupil sizes. To obtain measurements, the lux meter was placed in the chin rest in the corneal plane and the room was completely dimmed. Ten measurements were taken for each device. The illumination levels for white and red Placido disk corneal topographers were 1253.1 \u00b1 0.2 and 329.0 \u00b1 0.2 lux, respectively (both photopic conditions). Scheimpflug corneal tomography should be considered as a mesopic measurement (14.5 \u00b1 0.1 lux). Optical coherence tomography and autorefractometry are scotopic measurements (0.4\u20130.6 lux). We postulate that producers should provide illumination levels of their devices measuring pupil size. Moreover, when mentioning a pupil size, one should consider presenting to what lighting conditions it refers to.<\/jats:p>","DOI":"10.1007\/s00417-023-06189-9","type":"journal-article","created":{"date-parts":[[2023,8,7]],"date-time":"2023-08-07T07:02:13Z","timestamp":1691391733000},"page":"995-996","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Illumination levels in commonly used ophthalmic devices"],"prefix":"10.1007","volume":"262","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8036-7691","authenticated-orcid":false,"given":"Piotr","family":"Kanclerz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Natasza","family":"Bazylczyk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2023,8,7]]},"reference":[{"issue":"4","key":"6189_CR1","doi-asserted-by":"publisher","first-page":"373","DOI":"10.1097\/01.icu.0000233958.96133.02","volume":"17","author":"JJ Salz","year":"2006","unstructured":"Salz JJ, Trattler W (2006) Pupil size and corneal laser surgery. 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J Cataract Refract Surg 22(5):579\u2013584","journal-title":"J Cataract Refract Surg"},{"issue":"8","key":"6189_CR4","doi-asserted-by":"publisher","first-page":"1606","DOI":"10.1016\/S0161-6420(03)00494-9","volume":"110","author":"SC Schallhorn","year":"2003","unstructured":"Schallhorn SC, Kaupp SE, Tanzer DJ et al (2003) Pupil size and quality of vision after LASIK. Ophthalmology 110(8):1606\u20131614","journal-title":"Ophthalmology"},{"issue":"4","key":"6189_CR5","doi-asserted-by":"publisher","first-page":"736","DOI":"10.1016\/j.ophtha.2010.07.030","volume":"118","author":"A Chan","year":"2011","unstructured":"Chan A, Manche EE (2011) Effect of preoperative pupil size on quality of vision after wavefront-guided LASIK. Ophthalmology 118(4):736\u2013741","journal-title":"Ophthalmology"}],"container-title":["Graefe's Archive for Clinical and Experimental Ophthalmology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00417-023-06189-9.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00417-023-06189-9\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00417-023-06189-9.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,3,1]],"date-time":"2024-03-01T14:04:31Z","timestamp":1709301871000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00417-023-06189-9"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,8,7]]},"references-count":5,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2024,3]]}},"alternative-id":["6189"],"URL":"https:\/\/doi.org\/10.1007\/s00417-023-06189-9","relation":{},"ISSN":["0721-832X","1435-702X"],"issn-type":[{"value":"0721-832X","type":"print"},{"value":"1435-702X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,8,7]]},"assertion":[{"value":"30 May 2023","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"17 July 2023","order":2,"name":"revised","label":"Revised","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"21 July 2023","order":3,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"7 August 2023","order":4,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"This article does not contain any studies with human participants or animals performed by any of the authors.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval"}},{"value":"As this was not a study on human participants, an informed consent was not obtained.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}},{"value":"Dr. Kanclerz reports grants from Alcon, outside the submitted work. Dr. Bazylczyk has nothing to disclose.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}]}}