scholarly journals Therapeutic Effect of High Viscosity Silicone Oil for Treatment of Refractory Macular Hole: A Case Report

2021 ◽  
Vol 6 (2) ◽  
pp. 139-144
Author(s):  
Jae Yong Han ◽  
Dong Hyun Lee ◽  
Eun Young Choi ◽  
Min Kim
2019 ◽  
Vol 10 (2) ◽  
pp. 160-164 ◽  
Author(s):  
Filipe Sousa Neves ◽  
Joana Braga ◽  
Paula Sepúlveda ◽  
Miguel Bilhoto

The purpose of this case report is to describe a modified technique involving the use of an autologous neurosensory retinal free flap for closure of a macular hole (MH) during retinal detachment (RD) surgery. A 50-year-old female presented with sudden vision loss (light perception only) and a recurrent myopic RD associated with an MH. An autologous neurosensory retinal free flap was obtained and moved toward the MH. Silicone oil was used as an endotamponade and removed after 6 months. Two months after oil removal visual acuity improved to 20/400 and remained stable thereafter; however, the patient developed central retinal atrophy. One year after surgery the MH was closed and the retina attached. This modified technique with the use of an autologous neurosensory retinal flap provides an alternative approach for recurrent MH in RD procedures.


2021 ◽  
Author(s):  
Hamouda Hamdy Ghoraba ◽  
Hosam Othman Mansour ◽  
Mohamed Ahmed Abdelhafez Elsayed ◽  
Adel Galal Zaky ◽  
Mohamed Amin Heikal ◽  
...  

Purpose: To evaluate the risks that might be associated with recurrent macular hole retinal detachment (Re MHRD) after silicone oil (S.O) removal in myopic patients with open flat macular hole (MH). Methods: In this retrospective series, we assessed the different factors that might be associated with recurrent MHRD after S.O removal in 48 eyes with open flat MH that underwent S.O removal after successful MHRD repair by dividing the enrolled eyes into 2 groups: group 1 included 38 eyes with flat open MH and flat retina after S.O removal and group 2 included 10 eyes with flat open MH and recurrent MHRD after S.O removal. Results: Ten of 48 eyes (20.8%) with open flat MH developed recurrent MHRD after S.O removal. Univariate logistic regression analysis revealed that MH at the apex of PS, MH minimum diameter, hole form factor (HFF) and MH index (MHI) were significant risk factors for recurrent MHRD after S.O removal in myopic patients with open flat MH. Conclusions: If there is a "flat open" MH that is large, located at the apex of PS or with HHF or MHI of less than 0.9-0.5, it has a high chance of recurrent MHRD after S.O removal.


2019 ◽  
Vol 3 (6) ◽  
pp. 466-473
Author(s):  
Jessica L. Cao ◽  
Andrew W. Browne ◽  
Thomas Clifford ◽  
Sumit Sharma ◽  
Vivek Patel

Purpose: Silicone oil (SO) is often used as an intraocular tamponade in repairs of retinal detachments. It may be associated with complications such as cataract, glaucoma, keratopathy, subretinal migration of oil, fibrous epiretinal and sub retinal proliferations, and oil emulsification. The purpose of this report is to describe a rare phenomenon of intraocular silicone oil migration into the cerebral ventricles, which may later be mistaken for intraventricular hemorrhages on neuroimaging. Methods: Case report with literature review. Results: A patient with a history of retinal detachment repair with intraocular SO presented with headaches. Neuroimaging revealed SO migration to the cerebral ventricles. The patient was treated conservatively with symptom management and headaches resolved. Conclusions: We present a case of intraocular SO migration to the cerebral ventricles and review the current literature. We also propose two mechanisms for this phenomenon.


SpringerPlus ◽  
2013 ◽  
Vol 2 (1) ◽  
pp. 618 ◽  
Author(s):  
Nobutaka Tasaka ◽  
Koji Matsumoto ◽  
Toyomi Satoh ◽  
Takeo Minaguchi ◽  
Mamiko Onuki ◽  
...  

Author(s):  
Eduardo Castillo-Orozco ◽  
Ashkan Davanlou ◽  
Pretam K. Choudhury ◽  
Ranganathan Kumar

The release of liquid hydrocarbons into the water is one of the environmental issues that have attracted more attention after deepwater horizon oil spill in Gulf of Mexico. The understanding of the interaction between liquid droplets impacting on an immiscible fluid is important for cleaning up oil spills as well as the demulsification process. Here we study the impact of low-viscosity liquid drops on high-viscosity liquid pools, e.g. water and ethanol droplets on a silicone oil 10cSt bath. We use an ultrafast camera and image processing to provide a detailed description of the impact phenomenon. Our observations suggest that viscosity and density ratio of the two media play a major role in the post-impact behavior. When the droplet density is larger than that of the pool, additional cavity is generated inside the pool. However, if the density of the droplet is lower than the pool, droplet momentary penetration may be facilitated by high impact velocities. In crown splash regime, the pool properties as well as drop properties play an important role. In addition, the appearance of the central jet is highly affected by the properties of the impacting droplet. In general, the size of generated daughter droplets as well as the thickness of the jet is reduced compared to the impact of droplets with the pool of an identical fluid.


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