Scleral thickness
Web7 Feb 2024 · We obtained scleral thickness measurements vertically at a point that was 6 mm posterior to the scleral spur, which was just beneath the low reflective bands of the rectus muscles. At this point, we measured scleral thickness as the distance between anterior and posterior scleral borders. We repeated the measurement 4 times in the … Web6 Jan 2012 · Scleral thickness was significantly lower in the axially elongated group (axial length >26 mm) than in the non-axially elongated group for measurements taken at and …
Scleral thickness
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The sclera (plural: scleras or sclerae) is the fibrous, opaque white, coat of the eye. It functions to protect the intraocular contents. Summary location: posterior fifth-sixths of the eyeball blood supply: ciliary arteries innervation: ciliary nerves relations: anteriorly continuous with the cornea Gross anatomy See more The sclera may be divided into three histological layers: 1. episclera 1.1. outermost, loose connective tissue layer, connected to the … See more Outermost coat of the trilaminar globe. Anteriorly continuous with the cornea. Posteriorly perforated by the optic nerve at the lamina cribrosa. See more WebThe sclera ranges from 0.3 to 1.0 mm thick in humans; the posterior pole is the thickest area, and behind the rectus muscle insertions is the thinnest area. In mice, the posterior sclera is thickest and the anterior sclera very thin, such that the underlying uvea may be visible. Sign in to download full-size image Figure 12.
WebAbstract. Purpose: : Scleral thickness, especially near the optic nerve head (ONH), influences ONH biomechanics and thus may be relevant to the development of glaucomatous optic … WebScleral thickness near the corneal scleral limbus was 0.83 ± 0.20, 0.91 ± 0.17, and 1.12 ± 0.23 mm in the small-, medium-, and large-sized pigs. The thinnest area occurred at a distance of 5 mm from the limbus in the small- and medium-sized pigs with measurements of 0.31 ± 0.07 and 0.35 ± 0.1 mm, respectively.
WebNote these micrographs are not reproduced at original relative size; they are re-scaled to allow histologcial comparisons of the entire scleral thickness of each species. Frog sclera was generously donated by Dr. Allan Wiechmann (University of Oklahoma Health Science Center). Guinea pig sclera from: Simpanya et al., Expressed sequence tag ... Web1 Feb 1998 · Mean scleral thickness ± SD was 0.53 ± 0.14 mm at the corneoscleral limbus, significantly decreasing to 0.39 ± 0.17 mm near the equator, and increasing to 0.9 to 1.0 mm near the optic nerve. The mean total scleral surface area by surface area computerized tracings was 16.3 ± 1.8 cm 2 and, by the volume displacement method, was 17.0 ± 1.5 cm 2.
Web12 Mar 2024 · Scleral thickness and choroidal thickness are well known to decrease with axial elongation of the globe 28,29. Conversely, in small hyperopic eyes, the sclera is …
Web1 Mar 2024 · Scleral thickness was measured vertically 6 mm posterior to the scleral spur as the distance between the anterior and posterior scleral boundaries at 4 locations in … jeanine ogawaWebAbstract. Purpose: To assess the thickness and surface area of porcine sclera. Methods: One hundred twenty-eight porcine globes were sectioned from the center of the cornea … jeanine ocpWeb9 Apr 2024 · The inferior AST alone decreased significantly with increasing magnitude of myopia (r = 0.27; P = 0.008). There were no differences in AST between nasal and temporal meridians (583.24 ± 15.00 vs ... jeanine oacWeb31 Jul 2024 · The scleral thickness and corneal density were independently assessed by a masked expert. Subjects were examined by using the Spectralis Anterior Segment Module Optical Coherence Tomography (AS-OCT) (Heidelberg Engineering GmbH, Germany) for scleral thickness measurements. Scleral thickness measurements were obtained using a … jeanine oder janineWeb20 Sep 2016 · The in vivo thickness of the anterior sclera of normal healthy adult eyes has also been documented by a small number of recent studies using AS-OCT 14, 23, 24, 25. These studies have typically assessed scleral thickness at a small number of discrete locations, in a range of different meridians of the anterior eye. labopak kopertyWeb1 Jun 2024 · B, Scleral thickness was measured vertically at a point 6 mm posterior to the scleral spur, just beneath the low reflective band corresponding to the rectus muscle. Demographic characteristics such as age, sex, spherical equivalent, axial length, SCT, and scleral thickness of patients in the iCSC and sCSC groups were compared. labonte keratinaWebMean scleral thickness measurements with standard deviation were obtained. Twenty-five human eye bank eyes were used to determine total scleral surface area by either a … jeanine ogorek