8 research outputs found
Recurrent neovascularization of the disc in sympathetic ophthalmia
Sympathetic ophthalmia following parsplana vitrectomy is a known complication. We describe here a case of recurrent disc neovascularization in a patient of sympathetic ophthalmia. It promptly responded to steroids initially but later recurred with inflammation
Recurrent neovascularization of the disc in sympathetic ophthalmia
Sympathetic ophthalmia following parsplana vitrectomy is a
known complication. We describe here a case of recurrent disc
neovascularization in a patient of sympathetic ophthalmia. It
promptly responded to steroids initially but later recurred with
inflammation
Use and validation of mirrorless digital single light reflex camera for recording of vitreoretinal surgeries in high definition
Purpose: The purpose of this study is to describe the use of commercial digital single light reflex (DSLR) for vitreoretinal surgery recording and compare it to standard 3-chip charged coupling device (CCD) camera. Methods: Simultaneous recording was done using Sony A7s2 camera and Sony high-definition 3-chip camera attached to each side of the microscope. The videos recorded from both the camera systems were edited and sequences of similar time frames were selected. Three sequences that selected for evaluation were (a) anterior segment surgery, (b) surgery under direct viewing system, and (c) surgery under indirect wide-angle viewing system. The videos of each sequence were evaluated and rated on a scale of 0-10 for color, contrast, and overall quality Results: Most results were rated either 8/10 or 9/10 for both the cameras. A noninferiority analysis by comparing mean scores of DSLR camera versus CCD camera was performed and P values were obtained. The mean scores of the two cameras were comparable for each other on all parameters assessed in the different videos except of color and contrast in posterior pole view and color on wide-angle view, which were rated significantly higher (better) in DSLR camera. Conclusion: Commercial DSLRs are an affordable low-cost alternative for vitreoretinal surgery recording and may be used for documentation and teaching
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SD-OCT to differentiate traumatic submacular hemorrhage types using automatic three-dimensional segmentation analysis
Traumatic submacular hemorrhage may present with significant decrease in vision and may have varying outcomes. Following injury, the hemorrhage can collect either between the neurosensory retina and retinal pigment epithelium (RPE) or below the RPE. This differentiation may be important to prognosticate and to guide treatment. In two patients with post-traumatic submacular hemorrhage, Cirrius spectral domain high-definition optical coherence tomography (OCT) (Carl Zeiss Meditec, Dublin, CA) was used to differentiate traumatic submacular hemorrhage types using automation three-dimensional segmentation analysis. Based on the OCT findings, the patient with sub-RPE bleed was subjected to pneumatic displacement. En face C-scan imaging just below the RPE allowed for the diagnosis of the exact location of choroidal rupture that was masked due to hemorrhage