{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T04:29:53Z","timestamp":1782361793133,"version":"3.54.5"},"reference-count":34,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2024,5,8]],"date-time":"2024-05-08T00:00:00Z","timestamp":1715126400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Vision"],"abstract":"<jats:p>This study aimed to determine the pars plana length in postmortem human eyes using advanced morphometric techniques and correlate demographics to ocular metrics such as age, sex, ethnicity, and axial length. Between February and July 2005, we conducted a cross-sectional observational study on 46 human cadaver eyes deemed unsuitable for transplant by the SBO Eye Bank. The morphometric analysis was performed on projected images using a surgical microscope and a video-microscopy system with a 20.5:1 correction factor. The pars plana length was measured three times per quadrant, with the final value being the mean of these measurements. Of the 46 eyes collected, 9 were unsuitable for the study due to technical constraints in conducting intraocular measurements. Overall, the average axial length was 25.20 mm. The average pars plana length was 3.8 mm in all quadrants, with no measurements below 2.8 mm or above 4.9 mm. There were no statistically significant variations across quadrants or with age, sex, axial length, or laterality. Accurately defining the pars plana dimensions is crucial for safely accessing the posterior segment of the eye and minimizing complications during intraocular procedures, such as intravitreal injections and vitreoretinal surgeries.<\/jats:p>","DOI":"10.3390\/vision8020030","type":"journal-article","created":{"date-parts":[[2024,5,8]],"date-time":"2024-05-08T12:27:11Z","timestamp":1715171231000},"page":"30","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["A Morphometric Study of the Pars Plana of the Ciliary Body in Human Cadaver Eyes"],"prefix":"10.3390","volume":"8","author":[{"given":"Jaime","family":"Guedes","sequence":"first","affiliation":[{"name":"Department of Ophthalmology, Federal University of Rio de Janeiro, Rio de Janeiro 21941-971, RJ, Brazil"},{"name":"Glaucoma Research Center, Wills Eye Hospital, Philadelphia, PA 19107, USA"},{"name":"Ophthalmology, Opty Group, Rio de Janeiro 22640-100, RJ, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5385-3571","authenticated-orcid":false,"given":"Bruno F.","family":"Fernandes","sequence":"additional","affiliation":[{"name":"Argumento Institute, Boucherville, QC J4B-2G6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Denisse J.","family":"Mora-Paez","sequence":"additional","affiliation":[{"name":"Glaucoma Research Center, Wills Eye Hospital, Philadelphia, PA 19107, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rodrigo","family":"Brazuna","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Federal University of the State of Rio de Janeiro, Rio de Janeiro 22290-240, RJ, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6233-096X","authenticated-orcid":false,"given":"Alexandre Batista","family":"da Costa Neto","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Federal University of the State of Rio de Janeiro, Rio de Janeiro 22290-240, RJ, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-7948-154X","authenticated-orcid":false,"given":"Dillan Cunha","family":"Amaral","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Federal University of Rio de Janeiro, Rio de Janeiro 21941-971, RJ, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8834-2600","authenticated-orcid":false,"given":"Adriano Cypriano","family":"Faneli","sequence":"additional","affiliation":[{"name":"Bahiana School of Medicine and Public Health, Salvador 40290-000, BA, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ricardo Danilo Chagas","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Ophthalmology, Opty Group, Rio de Janeiro 22640-100, RJ, Brazil"},{"name":"Department of Ophthalmology, Federal University of Bahia, Salvador 40170-110, BA, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adroaldo","family":"de Alencar Costa Filho","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Federal University of Rio de Janeiro, Rio de Janeiro 21941-971, RJ, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adalmir Morter\u00e1","family":"Dantas","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Federal University of Rio de Janeiro, Rio de Janeiro 21941-971, RJ, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,5,8]]},"reference":[{"key":"ref_1","unstructured":"Forrester, J.V., Dick, A.D., McMenamin, P.G., Roberts, F., and Pearlman, E. 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