Optical Coherence Tomographic Imaging of Posterior Episclera and Tenon's Capsule

Abstract

Citation: Ohno-Matsui K, Fang Y, Morohoshi K, Jonas JB. Optical coherence tomographic imaging of posterior episclera and Tenon's capsule.

Anterior Sclera Undergoes Thinning with Increasing Degree of Myopia

“…9 The introduction of anterior segment optical coherence tomography (OCT), enhanced depth imaging in spectral domain OCT, and the latest swept source OCT (SS-OCT) with better penetration capacity of light signals has enabled the measurement of anterior scleral thickness (AST) and posterior scleral thickness (PST) in vivo. Most of the studies [10][11][12][13][14][15][16] have investigated the association of either the anterior or the PST in isolation with myopia, but not both in the same population. Scleral thinning is reported to be associated with increasing degrees of myopia, presence of staphyloma, and pathologic myopia lesions in the subfoveal region.…”

“…Scleral thinning is reported to be associated with increasing degrees of myopia, presence of staphyloma, and pathologic myopia lesions in the subfoveal region. 10,[14][15][16][17][18] Previous studies that reported peripheral AST have certain limitations in terms of the meridians investigated (temporal or nasotemporal meridians only) and included participants with -0.50 to -11.00 diopters (D) of myopic refractive errors. 19,20 In addition, there is limited information about the changes in scleral thickness that occur in various locations of sclera from anterior (limbus) to the posterior (foveal) region of the myopic eye.…”

Early Intervention and Nonpharmacological Therapy of Myopia in Young Adults

“…Constant, excessive tension coming from the limbs can be transferred in the proximal direction as far as to the head, along the connection of the trunk with the platysma muscle and neck extensors [ 69 – 71 ]. An interesting study was conducted by Ohno-Matsui et al who made an attempt to investigate the structural features of the posterior part of the episclera and the Tenon's fascia in patients with high myopia [ 70 ]. The study involved 278 eyes of 175 patients aged 60.9 ± 11.4 years with a refraction defect of >−8 D or an axial length of ≥26.5 mm.…”

“…The posterior parts of the episclera and the Tenon's fascia were examined with optical coherence tomography. Analysis with the use of OCT allowed for a visualization of the posterior part of the sclera and the episclera, and in some cases also of the Tenon's fascia ( Figure 5 ) [ 70 ]. It was observed that eyes with a detectable episclera had significantly longer axial length and thinner central retinal thickness than eyes without it.…”

“…It was observed that eyes with a detectable episclera had significantly longer axial length and thinner central retinal thickness than eyes without it. Moreover, the fibres seemed to be more loosely arranged and more split up in the Tenon's capsule [ 70 ].…”