Foveolar Choroidal Blood Flow in Idiopathic Macular Hole

Aras, Cengiz; Ocakoğlu, Özcan; Akova, Nilufer

doi:10.1007/s10792-005-5014-4

Cited by 23 publications

(12 citation statements)

References 23 publications

(25 reference statements)

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“…Recently, Heidelberg retinal flowmetry showed that the mean blood flow and velocity were reduced in eyes with stage 4 and stage 1a MH compared with normal eyes 26 . They have proposed that choroidal hypoperfusion may be a factor for FTMH formation because of a decrease in nutrient transport and an increase in susceptibility to damaging factors 26 .…”

Section: Discussionmentioning

confidence: 99%

“…They have proposed that choroidal hypoperfusion may be a factor for FTMH formation because of a decrease in nutrient transport and an increase in susceptibility to damaging factors 26 . The choroid contributes the blood supply to the outer retina, contributing to 100% blood and oxygen supply in the foveal avascular zone, where IMH occurs 27 …”

Section: Discussionmentioning

confidence: 99%

“…A six-fold higher risk of IMH formation in fellow eyes of patients in previous studies, 28 together with the observed choroidal thinning in unaffected eyes, propose some causative role of choroidal thinning in IMH formation. However, MH will develop in only 15% of fellow eyes, so there must be other more important factors as tractional forces or inner retinal layers ischemia 9, 26…”

Section: Discussionmentioning

confidence: 99%

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Choroidal thickness in idiopathic macular hole

Karkhaneh

Nikbakht

Bazvand

et al. 2017

Journal of Current Ophthalmology

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PurposeTo measure the submacular choroidal thickness in eyes with idiopathic macular hole (IMH) compared with unaffected fellow eyes and normal control eyes.MethodsIn this single institutional retrospective comparative case-control study, 34 consecutive patients with IMH were included and compared with 30 normal age- and sex-matched eyes that were planned to have cataract surgery. The included eyes were divided into 4 groups: 41 eyes with IMH (A), 23 unaffected fellow eyes (B), 30 normal eyes (C), and 12 vitrectomized IMH eyes (D).ResultsThe choroidal thickness was significantly lower in all measured points in IMH eyes versus normal control eyes (subfoveal choroidal thickness [SFCT]: 215.76 ± 66.7 vs. 288.53 ± 72.0, P < 0.001) and at most locations in comparison between group B and C (SFCT: 231.79 ± 68.6 vs. 288.53 ± 72.0, P = 0.018). No significant difference was found in choroidal thickness between both eyes of patients with unilateral IMH (P = 0.81). The choroidal thickness was not altered after vitrectomy in the mean 6 months follow-up period. A negative correlation between the apical diameter and basal diameter of IMH and SFCT (P = 0.05) (P value of 0.034 and 0.05) and preoperative best-corrected visual acuity and apical and basal diameter of IMH (P = 0.006 and P = 0.029, respectively) was observed.ConclusionChoroidal thickness is reduced in both eyes of patients with IMH compared with normal age- and sex-matched control eyes.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Choroidal thickness in idiopathic macular hole

Karkhaneh

Nikbakht

Bazvand

et al. 2017

Journal of Current Ophthalmology

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“…51,52 This leads to the hypothesis that reduced vasculature, insufficient blood and oxygen supply, may increase the susceptibility of the fovea to traction. 53 Subsequent EDI-OCT reports did not confirm choroidal thinning in patients with idiopathic MH. 54…”

Section: Vitreoretinal Interface Diseasesmentioning

confidence: 98%

Choroidal Imaging with Swept Source Optical Coherence Tomography – A Review

Piasecka¹,

Michalewska²

2014

European Ophthalmic Review

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The choroid provides up to 70 % of blood and oxygen to the eye. Pathological changes of this vascular tissue may lead to malnutrition of the retina and therefore be involved in the pathogenesis of numerous retinal disorders. Swept source optical coherence tomography (SS-OCT) is a new development of a non-invasive imaging technique that uses a tunable laser source with a higher wavelength light than conventional spectral domain OCT (SD-OCT). This enables visualisation of tissues below the retinal pigment epithelium. Thanks to SS-OCTs ultrahigh speed and ultrahigh resolution it is possible to assess choroidal layers as well as to automatically create 3D maps of its thickness and volume. This review is to discuss how SS-OCT has improved our understanding of choroidal anatomy and function in various retinal and chorioretinal diseases. In future, detailed evaluation of choroid may play a crucial role in the diagnosis and management of various retinal diseases.

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“…Although the cause of IMH is generally accepted to be vitreomacular traction and tangential traction of the inner limiting membrane [15], the exact pathogenic mechanisms are still elusive. In fact, other factors, as local vascular alteration, has been shown to play a role in the formation of IMH [16,17]. Additional information concerning FE conditions may improve the knowledge about IMH pathogenesis and help predict the risk of bilateral disease.…”

Section: Introductionmentioning

confidence: 99%