Impact of retinal pigment epithelium pathology on spectral-domain optical coherence tomography-derived macular thickness and volume metrics and their intersession repeatability

2017 ◽  
Vol 45 (3) ◽  
pp. 270-279 ◽  
Author(s):  
Daren Hanumunthadu ◽  
Jin Ping Wang ◽  
Wei Chen ◽  
Evan N Wong ◽  
Yi Chen ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Retinal Pigment Epithelium ◽  
Pigment Epithelium ◽  
Retinal Pigment ◽  
Macular Thickness ◽  
Spectral Domain ◽  
Optical Coherence

Evaluation of ocular perforation during retrobulbar block using high-resolution spectral domain–optical coherence tomography and optical coherence tomography angiography

2018 ◽  
Vol 28 (4) ◽  
pp. NP7-NP10 ◽  
Author(s):  
Stanislao Rizzo ◽  
Ruggero Tartaro ◽  
Lucia Finocchio ◽  
Andrea Giorni ◽  
Daniela Bacherini ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Visual Acuity ◽  
Retinal Pigment Epithelium ◽  
Optical Coherence Tomography Angiography ◽  
Pigment Epithelium ◽  
Retinal Pigment ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Scleral Buckle ◽  
Retrobulbar Block

Introduction: This article reports a case of ocular perforation during a retrobulbar block in a patient who underwent scleral buckle for retinal detachment. Methods: Sterile air was immediately injected into the vitreous cavity to restore intraocular pressure and the scleral buckle operation was quickly finished. One week later, a laser retinopexy was performed on the two retinal holes that were outside the foveal area. After 6 months, spectral domain–optical coherence tomography and optical coherence tomography angiography were performed on the perforated wall centered on the exit hole area. Results: The visual acuity was maintained 20/20 and the retina was totally attached. Spectral domain–optical coherence tomography showed a localized interruption of inner retina, retinal pigment epithelium, and choroid, with a higher posterior reflectivity in correspondence with the sclera. Optical coherence tomography angiography was able to detect atrophic alterations in the choroidal slab with a good visualization of large and rarefied choroidal vessels due to lack of retinal pigment epithelium and choriocapillaris. Conclusion: When ocular perforation by a needle is outside the foveal area and when there is an early awareness of the perforation, the complications may be avoided, and we could observe a good final visual acuity result. Furthermore, using spectral domain–optical coherence tomography and optical coherence tomography angiography, we could observe the perforated eyeball wall and study the effects of a 25-gauge needle perforation in the retinal and choroidal blood stream.

scholarly journals Directional optical coherence tomography reveals melanin concentration-dependent scattering properties of retinal pigment epithelium

2019 ◽  
Vol 24 (06) ◽  
pp. 1 ◽  
Author(s):  
Ratheesh K. Meleppat ◽  
Pengfei Zhang ◽  
Myeong Jin Ju ◽  
Suman K. Manna ◽  
Yifan Jian ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Retinal Pigment Epithelium ◽  
Pigment Epithelium ◽  
Retinal Pigment ◽  
Optical Coherence
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