Disc–fovea distance and choroidal thickness: is there a relationship?

Cevher, Selim; Üçer, Mehmet Barış; Şahin, Tayfun

Disc–fovea distance and choroidal thickness: is there a relationship?

dc.authorid	0000-0002-7968-4876
dc.authorid	0000-0002-6807-4909
dc.contributor.author	Cevher, Selim
dc.contributor.author	Üçer, Mehmet Barış
dc.contributor.author	Şahin, Tayfun
dc.date.accessioned	2023-02-01T12:19:08Z
dc.date.available	2023-02-01T12:19:08Z
dc.date.issued	2022	en_US
dc.department	Hitit Üniversitesi, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü
dc.description.abstract	Background: The distance between the optic disc center and the fovea is a biometric parameter; however, it is unclear whether DFD (disc–fovea distance) affects the choroidal thickness. Objective: The aim of this study is to investigate the association between DFD and choroidal thickness. Design: This is a prospective, and cross-sectional study. Methods: Two hundred fifty eyes of 250 healthy participants were examined in terms of DFD, age, axial length, spherical equivalent, and choroidal thickness. Inclusion criteria included aged between 20–40 years, no posterior segment disorders, and participants with best-corrected visual acuity (10/10 according to Snellen’s chart). Participants with high hypermetropia (>4 diopter) or myopia (>6 diopter) or any systemic disease likely to affect choroidal thickness were excluded. Choroidal thickness measurements were performed at subfoveal, 1.0 mm temporal, and 1.0 mm nasal using the enhanced-depth imaging optical coherence tomography. Results: The mean age of all the participants was 26.21?±?5.73 years, mean DFD was 4634.29?±?274.70 µm, mean axial length was 23.62?±?0.83 mm, and mean spherical equivalent was ?0.61?±?1.06 diopter. The mean subfoveal, nasal, and temporal choroidal thicknesses were 388.73?±?90.15 µm, 351.26?±?88.09 µm, and 366.50?±?79.56 µm, respectively. A negative correlation was found between subfoveal, nasal, and temporal choroidal thicknesses and axial length (r?=??0.157, p?=?0.013; r?=??0.168, p?=?0.008; r?=??0.174, p?=?0.006, respectively). Insignificant correlation was found between choroidal thicknesses and spherical equivalent (p?>?0.05). There was not a statistically significant correlation between DFD and subfoveal, nasal, and temporal choroidal thicknesses (r?=??0.028, p?=?0.655; r?=?0.030, p?=?0.641; r?=??0.025, p?=?0.699, respectively). In addition, there was not a statistically significant correlation between age and choroidal thickness. Conclusion: This study shows that DFD and spherical equivalent do not affect choroidal thickness; axial length negatively affects choroidal thickness. In addition, age does not affect choroidal thickness between 20 and 40 years.
dc.identifier.citation	Cevher S, Barış Üçer M, Şahin T. Disc–fovea distance and choroidal thickness: is there a relationship? Therapeutic Advances in Ophthalmology. 2022;14.
dc.identifier.doi	10.1177/25158414221096062
dc.identifier.issn	2515-8414
dc.identifier.pmid	35602660
dc.identifier.uri	http://dx.doi.org/10.1177/25158414221096062
dc.identifier.uri	https://hdl.handle.net/11491/8443
dc.identifier.volume	14	en_US
dc.identifier.wos	WOS:000798254600001
dc.identifier.wosquality	N/A
dc.indekslendigikaynak	Web of Science
dc.indekslendigikaynak	PubMed
dc.language.iso	en
dc.publisher	SAGE PUBLICATIONS LTD
dc.relation.ispartof	THERAPEUTIC ADVANCES IN OPHTHALMOLOGY
dc.relation.publicationcategory	Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rights	Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)	*
dc.rights	info:eu-repo/semantics/openAccess
dc.rights.uri	https://creativecommons.org/licenses/by-nc/4.0/	*
dc.subject	Choroidal Thickness	en_US
dc.subject	Disc–Fovea Distance	en_US
dc.subject	Enhanced-Depth Imaging Optical Coherence Tomography	en_US
dc.subject	Healthy Participants	en_US
dc.title	Disc–fovea distance and choroidal thickness: is there a relationship?
dc.type	Article