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2 de fev. de 2022 · An illustration of gastric unit and precancerous conditions shows the histological structure of gastric epithelium, possible gastric stem cells types and potential origin of different gastric precancerous conditions.
- Hang Yang, Wen-Juan Yang, Bing Hu
- 2022/02/02
- 10.4251/wjgo.v14.i2.396
1 de ago. de 2011 · Foveal OCT scans were assessed for outer retinal structure, outer nuclear layer thickness, and hypoplasia. AOSLO images were graded as quantifiable if a peak cone density could be measured and/or usable if the location of peak density could be identified and the parafoveal mosaic was quantifiable.
- Sarim Mohammad, Irene Gottlob, Anil Kumar, Mervyn Thomas, Christopher Degg, Viral Sheth, Frank Anton...
- 2011
Histologic features of a normal fovea comprise a central area exclusively containing cones with elongated outer segments (OS) underlying a capillary-free zone and surrounded by separation of inner retinal layers. 1 The advent of optical coherence tomography (OCT), which allows noninvasive, cross-sectional imaging of the retina, made possible the...
- Sarah Tick, Florence Rossant, Itebeddine Ghorbel, Alain Gaudric, José-Alain Sahel, Philippe Chaumet-...
- 2011
1 de set. de 2022 · Early development of the fovea has been documented by histological studies over the past few decades. However, structural distortion due to sample processing and the paucity of high-quality post-mortem tissue has limited the effectiveness of this approach.
21 de ago. de 2018 · Thomas et al. proposed a structural grading system of foveal hypoplasia based on the cross-sectional OCT images: Grade 1, a shallow foveal pit and presence of a thick outer nuclear layer (ONL) and presence of OSs in the foveal pit; Grade 2, absence of foveal pit; Grade 3, absence of OS lengthening; and Grade 4, absence of ONL widening.
- Hiroyuki Kondo
- 10.4103/tjo.tjo_101_18
- 2018
- Oct-Dec 2018
1 de dez. de 2011 · The fovea is immature at birth. 7, 8 Histologic studies, originating with those of Mann in 1964, 9 have reported (1) persistence of IRL at the foveal center and absence of the normal foveal curvature in the fetal eye and (2) changes in the width and length of photoreceptor substructures over time.
The structure of the fovea. The fovea has unique anatomical and physiological specializations [ 3] presenting both special challenges, and certain advantages for vision restoration. The fovea is avascular and foveal cones are slender and densely packed relative to their peripheral counterparts.
