The wettability of precursor solution on substrates is the critical factor for fabricating quality film. In this work, superwetting nanofluids (NFs) of non-stoichiometric nickel oxide (NiO) nanocrystals (NCs)-CsBr solution are first utilized to fabricate quality NiO-CsPbBr hybrid film with gradient-distributed NiO NCs in the upper part for constructing hole transport ladder in carbon-based perovskite solar cells (C-PSCs). As anticipated, the crystalline properties (improved crystalline grain diameters and reduced impurity phase) and hole extraction/transport of the NiO-CsPbBr hybrid film are improved after incorporating NiO NCs into CsPbBr.
View Article and Find Full Text PDFIntroduction: So far, there has been no closure grade system synthesizing morphological and microstructural features for large idiopathic macular holes (IMHs) treated by vitrectomy and internal limiting membrane (ILM) peeling. This study aimed to propose a concise one and explore its relevance with visual acuity and the related preoperative factors.
Methods: Consecutive patients with large IMHs (minimum diameter >400 μm), undergoing vitrectomy and ILM peeling, obtaining primary closure and regularly followed-up were enrolled.
ACS Appl Mater Interfaces
December 2023
Optical response improvement and hole transport/extraction enhancement are critical to enhancing the power conversion efficiency (PCE) of carbon electrode-based perovskite solar cells (C-PSCs) with an absorber of CsPbBr. In this study, a multifunctional optimization method by embedding MoS nanosheets in CsPbBr bulk to construct a perovskite-nanosheet hybrid structure was presented. A CsPbBr-MoS hybrid film was fabricated by two-step spin-coating the precursor solutions of PbBr and CsBr-MoS under an ambient atmosphere, where the aqueous solution with highly distributed MoS nanosheets was applied as a solvent of the hybrid precursor solution.
View Article and Find Full Text PDFBackground: Several previous reports suggested that stage 4 idiopathic macular holes (IMHs) may exhibit lower rate of anatomical success and poorer functional results comparing with stage 3 IMHs, while some others showed no differences. Actually, few studies focused on comparison of prognosis between stage 3 and stage 4 IMHs. Our previous study found that IMHs of these two stages demonstrate similar preoperative characteristics, and this study aims to compare anatomical and visual outcomes of IMHs between stage 3 and stage 4, and tries to figure out the outcome-associated factors.
View Article and Find Full Text PDFPurpose: To compare the anatomical and visual outcomes of extra-large idiopathic macular holes treated with internal limiting membrane peeling and two inverted internal limiting membrane flap techniques, namely insertion and cover technique.
Methods: Patients with idiopathic macular holes (minimum linear diameter ≥ 650 µm) were divided into peeling group, insertion group, and cover group. The initial closure rate, final length of external limiting membrane and ellipsoid zone recovery, and best-corrected visual acuity were evaluated.
Purpose: To compare the efficacy of air and perfluoropropane (C3F8) with pars plana vitrectomy (PPV) in highly myopic macular holes (HMMHs) and explore the factors related to surgical prognosis.
Methods: A retrospective comparison of a consecutive series of HMMHs undergone vitrectomy and internal limiting membrane peeling. According to tamponade type, they were divided into air group and C3F8 group, which were further divided into subgroups based on hole diameter or axial length (AXL).
Purpose: To observe the characteristics and prognosis of different types of intraretinal cystoid spaces in idiopathic epiretinal membranes (iERMs).
Methods: Two hundred and seven consecutive patients with symptomatic iERM who underwent vitrectomy between September 2016 and December 2019 were included. According to spectral-domain optical coherence tomography images, intraretinal cystoid spaces were classified into cystoid macular edema (CME) and microcystic macular edema (MME).
Graefes Arch Clin Exp Ophthalmol
January 2023
Purpose: To observe the characteristics of highly myopic macular holes (HMMHs) with macular retinoschisis (MRS) by optical coherence tomography (OCT) and explore the possible relationship between HMMHs and different types of MRS.
Methods: We consecutively reviewed the clinical data and OCT images of the patients with HMMHs from June 2015 to February 2021. Then we picked eyes with MRS from these HMMHs for analysis.
Purpose: To investigate the effects of ectopic inner foveal layers (EIFLs) on foveal configuration recovery and visual acuity after idiopathic epiretinal membrane removal and analyze the relationship of foveal configuration recovery between 1-month and long-term postoperatively.
Methods: This retrospective study included 216 consecutive eyes with idiopathic epiretinal membrane that underwent vitrectomy surgery. A comprehensive ophthalmic examination was performed for all patients before and 1, 4, 10, and 24 months after surgery.
Purpose: This study aimed to evaluate fixation stability and position changes after epiretinal membrane (ERM) surgery.
Methods: This is a retrospective study that included 60 consecutive eyes with idiopathic ERM. All patients received comprehensive ophthalmic examinations preoperatively and 1, 4, and 10 months postoperatively.
BMC Ophthalmol
September 2020
Background: To compare idiopathic macular holes (IMHs) between male and female before and after surgery.
Methods: Patients with IMHs of stage 3 and stage 4 who underwent 23-gauge vitrectomy were retrospectively enrolled. Pre-operative clinical features like age of onset, and best-corrected visual acuity (BCVA) were reviewed.
Background: To determine whether preoperative hole diameter ratio (HDR) is a predictive factor for postoperative anatomical outcome for stage III or IV idiopathic macular holes (IMHs).
Methods: One-hundred and one eyes with stage III or IV IMH were included in this retrospective case series study. All cases were treated with vitrectomy combined with internal limiting membrane (ILM) peeling and room air tamponade.
Purpose: To investigate the reconstructive changes in foveal microstructures postoperatively and analyze the visual predictors in eyes with surgically closed traumatic macular holes (TMHs).
Methods: Seventy-one eyes with TMHs that underwent vitrectomy, internal limiting membrane (ILM) peeling, and gas tamponade were reviewed. Clinical data, best-corrected visual acuity, and spectral-domain optical coherence tomography (SD-OCT) images were recorded.
Graefes Arch Clin Exp Ophthalmol
October 2020
Purpose: To explore the evolution of outer foveolar lucency (OFL) after vitrectomy and the correlation between OFL and visual acuity (VA) outcome in eyes with large idiopathic macular hole (IMH).
Methods: In this retrospective study, 244 eyes of 233 subjects with large IMH (diameter > 400 μm), who underwent vitrectomy, were included. Preoperative clinical data, postoperative optical coherence tomography (OCT) images, and VA at 1-, 4-, and 10-month visits were documented.
Background: To evaluate the effect of internal limiting membrane (ILM) peeling surrounding macular holes (MH) for the function of retina by microperimetry-3(MP-3).
Methods: This is a prospective, cohort study which included patients with MHs who were treated by 23-gauge 3-port pars plana vitrectomy and ILM peeling with air tamponade. Color fundus photography, retinal optical coherence tomography and MP-3 were performed 1 week before, 1 and 4 months after the operation.
Aims: To investigate characteristics of intraoperative iatrogenic retinal breaks in 23-gauge vitrectomy for idiopathic macular hole and classify the breaks based on their causes to analyse the risk factors.
Methods: This retrospective study enrolled patients with stage 3 or 4 idiopathic macular hole who underwent 23-gauge vitrectomy in Beijing Tongren Hospital from July 2015 to August 2018. The intraoperative iatrogenic retinal breaks were classified into three types: by induction of posterior vitreous detachment (type 1), by peripheral vitreous cutting (type 2) and by others (type 3).
Background: Vitreomacular adhesion (VMA) has been reported to associated with age-related macular degeneration (AMD). Understanding the mechanisms underlying cyclic stretch induced in retinal pigment epithelial cells (RPE) may be important for the treatment of VMA-related AMD.
Method: Cyclic stretch (1HZ, 20% elongation) was applied to cultured ARPE-19 cells for 15 min, 2 h, 6 h, 12 h, 24 h by flexcell FX-5000 Tension system.
Graefes Arch Clin Exp Ophthalmol
December 2018
Purpose: To compare clinical and morphological differences in idiopathic macular holes (IMHs) between stage 3 and stage 4.
Methods: In this retrospective cross-sectional observational study, patients with stage 3 and stage 4 IMHs based on Gass's classification in 1988 were enrolled. Horizontally and vertically, optical coherence tomography (OCT)-based parameters including minimum linear diameter (MLD), basal diameter (BD), and macular hole height (H) were measured; fluid cuff (FC), diameter hole index (DHI), macular hole index (MHI), traction hole index (THI), and hole form factor (HFF) were calculated.
Purpose: To evaluate the effect of internal limiting membrane peeling and air tamponade for idiopathic macular hole, and explore reasons and interventions for persistent holes.
Methods: One hundred and thirty-five eyes with Stage III and IV idiopathic macular hole that underwent 23-gauge vitrectomy, internal limiting membrane peeling, and air tamponade were reviewed. Eyes with persistent holes underwent a second surgery.
Purpose: To explore a measuring method for retinal sensitivity in macular hole area by Microperimeter-3 (MP-3) and evaluate its predictive value on visual prognosis.
Methods: This was a case series study including 44 eyes of 44 patients with idiopathic macular hole. Retinal sensitivity inside and 0.
Ophthalmic Surg Lasers Imaging Retina
August 2018
Background And Objective: To investigate changes in the pattern of metamorphopsia in patients after idiopathic macular hole (MH) surgery and the relationship between metamorphopsia, visual acuity (VA), and macular parameters.
Patients And Methods: This prospective, interventional study included 53 eyes of 53 patients with idiopathic full-thickness MH. The severity of metamorphopsia was quantified using M-CHARTs.
Carbohydr Polym
October 2018
In this study, cellulose nanofibrils (CNFs), obtained from the chemical treatment of steam exploded rice straw fibers and the following oxidation by 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated system, were utilized to prepare the reinforced polyvinyl alcohol (PVA) composite films by solution casting method, and the morphology, transparency, thermal stability, mechanical properties and water absorption of these rice straw CNFs/PVA composite films were also investigated compared with the rice straw cellulose microfibrils (CMFs) reinforced PVA composite films. As compared with the rice straw CMFs/PVA composite films, the rice straw CNFs/PVA composite films exhibited more uniform fiber dispersion, better mechanical properties and transparency, and similar thermal stability. However, the rice straw CNFs/PVA composite films showed weaker water resistance than the rice straw CMFs/PVA composite films due to the existence of more polar groups in rice straw CNFs.
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