August 2014
Volume 55, Issue 8
Letters to the Editor  |   August 2014
Choroidal Thickness and Axial Length
Author Notes
  • Zhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou, China. 
Investigative Ophthalmology & Visual Science August 2014, Vol.55, 5054. doi:
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      Wenbin Huang, Xiulan Zhang; Choroidal Thickness and Axial Length. Invest. Ophthalmol. Vis. Sci. 2014;55(8):5054. doi:

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      © ARVO (1962-2015); The Authors (2016-present)

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Recently, Ruiz-Medrano et al. 1 did a study to determine choroidal thickness (CT) profile in a healthy population using swept-source optical coherence tomography (SS-OCT). In their study, the patient profiles (age, sex, and spherical equivalent) were collected to identify potential factors associated with CT. However, axial length is another important factor influencing CT, which should be considered in their study. Several studies investigating factors associated with CT have demonstrated the significant relationship between CT and axial length. 24 Specially, in the previous study that included 3468 individuals, Wei et al. 2 found that the eyes with longer axial length have a thinner choroid. Thus, if Ruiz-Medrano et al. 1 consider axial length in their study, their study thereby will be strengthened. 
Ruiz-Medrano J Flores-Moreno I Peña-García P Montero JA Duker JS Ruiz-Moreno JM. Macular choroidal thickness profile in a healthy population measured by swept-source optical coherence tomography. Invest Ophthalmol Vis Sci . 2014; 55: 3532–3542. [CrossRef] [PubMed]
Wei WB Xu L Jonas JB Subfoveal choroidal thickness: the Beijing Eye Study. Ophthalmology . 2013; 120: 175–180. [CrossRef] [PubMed]
Huang W Wang W Gao X Choroidal thickness in the subtypes of angle closure: an EDI-OCT study. Invest Ophthalmol Vis Sci . 2013; 54: 7849–7853. [CrossRef] [PubMed]
Flores-Moreno I Lugo F Duker JS Ruiz-Moreno JM. The relationship between axial length and choroidal thickness in eyes with high myopia. Am J Ophthalmol . 2013; 155: 314–319. [CrossRef] [PubMed]

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