Short-Term Endotamponade With Perfluorocarbon Liquids for Giant Retinal Tear-Associated Retinal Detachment.

To investigate the use of short-term postoperative endotamponade with perfluorocarbon liquids (PFCLs) for the treatment of giant retinal tear-associated rhegmatogenous retinal detachment (RRD). This retrospective study evaluated patients who had 2-stage surgery, which entailed pars plana vitrectomy (PPV) completed in 2 consecutive surgeries spaced 5 days apart, during which a short-term tamponade with PFCL was used (Group 1), and patients who had conventional single-stage PPV with long-term silicone oil (SO) tamponade (Group 2). The study comprised 74 eyes of 68 patients, 52 in Group 1 and 22 in Group 2.

Anatomical and functional outcome of surgical correction of optic disc pit maculopathy using autologous scleral patch graft: a long-term retrospective analysis.

Background: Optic disc pit (ODP) is a rare congenital anomaly of optic nerve head and is associated with maculopathy. Scleral patch graft (SPG) as a therapeutic option is recently advocated.

Methods: This is a retrospective analysis of 54 patients with ODP maculopathy who were followed up for 12 months post-operatively.

A first principles study on the stability and electronic and optical properties of 2D SbXY (X = Se/Te and Y = I/Br) Janus layers.

Motivated by the exceptional optoelectronic properties of 2D Janus layers (JLs), we explore the properties of group Va antimony-based JLs SbXY (X = Se/Te and Y = I/Br). Using Bader charges, the electric dipole moment in the out-of-plane direction of all the JLs is studied and the largest dipole moment is found to be in the SbSeI JL. Our results on the formation energy, phonon spectra, elastic constants, and molecular dynamics (AIMD) simulation provide insights into the energetic, vibrational, mechanical, and thermal stability of JLs.

Band alignment in CdS-α-Te van der Waals heterostructures for photocatalytic applications: influence of biaxial strain and electric field.

We present a comprehensive theoretical analysis of the structural and electronic properties of a van der Waals heterostructure composed of CdS and α-Te single layers (SLs). The investigation includes an in-depth study of fundamental structural, electronic, and optical properties with a focus on their implications for photocatalytic applications. The findings reveal that the α-Te SL significantly influences the electronic properties of the heterostructure.

Anatomic and Visual Outcomes of Scleral Buckle in Primary Rhegmatogenous Retinal Detachment in the Era of Pars Plana Vitrectomy.

To determine the presenting clinical characteristics of patients with rhegmatogenous retinal detachment (RRD) who underwent scleral buckling and the impact on final visual outcomes and to determine the postoperative primary attachment rate, complications, and subsequent management. This retrospective observational study comprised patients with RRD who had scleral buckling surgery from January 2016 to December 2021 with a minimum follow-up of 6 months. The study comprised 307 eyes of 290 patients; 97% of eyes were phakic.

Macular hole associated Retinal Detachment in presumed Autosomal Recessive Bestrophinopathy (ARB)- A retrospective observational series of two cases.

Purpose: Surgical outcome of presumed Autosomal Recessive Bestrophinopathy (ARB)with full thickness macular hole and retinal detachment managed by pars plana vitrectomy.

Methods: A retrospective observational case series of two eyes of two patients who underwent 25 G pars plana vitrectomy with peeling of internal limiting membrane and SF6 tamponade and were assessed with respect to best corrected visual acuity, fundus photographs and spectral domain optical coherence tomography.

Results: Type 1 closure of macular hole was achieved along with resolution of retinal detachment in both patients.

A retrospective analysis of surgical outcome in sutureless glueless scleral fixation of foldable intraocular lens.

Introduction: Cataract surgery constitutes one of the highest volume surgeries performed worldwide approximating 10 million annually, varying from 100 to 6000 per million population. Implantation of scleral fixated intra-ocular lens (SFIOL) is getting popular in managing difficult situations like aphakia, subluxated lens, and dislocated cataracts.

Objective: This retrospective series evaluated our experience with foldable 3-piece acrylic SFIOL implantation for various challenging surgical scenarios in a tertiary care ophthalmic institute in the southern part of India.

Couching of cataractous lens in microphthalmic eyes with irido-fundal coloboma: revisiting the historical technique.

Purpose: Cataract surgery in microphthalmic eyes is challenging due to anatomical restraints, hard bulky nucleus. This series aims to evaluate the safety and efficacy of couching of intraocular lens in irido-fundal coloboma with microphthalmos.

Setting: Tertiary care centre in South India.

Outbreak of toxic anterior segment syndrome following vitreoretinal surgery - A retrospective analysis.

Background: Toxic anterior segment syndrome (TASS) is an uncommon complication of vitreoretinal surgery and is characterized by severe anterior chamber reaction, hypopyon, and limbus-to-limbus corneal edema.

Methods: Twenty-nine vitreoretinal surgeries were performed, of which 14 developed TASS in the early postoperative period. The operative records were reviewed retrospectively.

Clinical spectrum of first episode of optic neuritis in a tertiary care hospital in Southern India - A retrospective analysis.

Purpose: The purpose of this study was to determine the demographic and clinical patterns of optic neuritis (ON) in patients presenting to a tertiary health-care institute and to study the incidence of multiple sclerosis (MS), magnetic resonance imaging features in varied ON, treatment outcome, and prognosis.

Methods: A retrospective analysis of patients with first episode of ON presenting to a tertiary care center during the period from March 2013 to March 2021 was done. Details of ocular examination were retrieved from medical records and statistically analyzed.

Electronic structure and thermoelectric properties of Mo-based dichalcogenide monolayers locally and randomly modified by substitutional atoms.

Density functional theory and Boltzmann transport equations are used to investigate electronic band structure and thermoelectric (TE) properties of different two-dimensional (2D) materials containing Mo, S, Nb, Se, and Te. In MoS-based monolayers (MLs) the substitution of S atoms by Te atoms up to the concentration of 12.5 at% leads to a more significant change of the band structure than in the corresponding case with Se atoms.

Varied Presentations of Posterior Keratoconus: A Clinical Case Series.

Purpose: To describe the varied presentations of posterior keratoconus.

Methods: This is a 3-year institute-based retrospective study report from June 2015 to June 2018 that describes 13 eyes of 12 patients with varied presentations of posterior keratoconus, evaluating tomographic changes using Scheimpflug corneal tomography and anterior segment optical coherence tomography. Slit-lamp examination revealed circumscribed nebular corneal opacity with posterior corneal depression.

Interaction of O-Y and O-Y-Ti clusters embedded in bcc Fe with He, vacancies and self-interstitial atoms.

Calculations based on density functional theory are performed to investigate the interaction of O-Y and O-Y-Ti clusters in bcc Fe with He atoms, vacancies (v) and self-interstitial atoms (SIA). The four different cluster structures studied in our previous work (J. Phys.

Risk factors for endothelial cell damage in diabetics after phacoemulsification.

Background: To assess the corneal endothelium, central corneal thickness and the factors associated with endothelial cell damage after phacoemulsification in diabetics in comparison with non-diabetics.

Methods: It was a case control study with 80 eyes each in the diabetic group and the control group. Intraoperative mydriasis, effective phaco time (EPT) and postoperative inflammation were measured.

Investigation of structural models for O-Y and O-Y-Ti clusters in bcc Fe: a density functional theory study.

Six different structural models for atomic clusters in bcc Fe are investigated by density functional theory (DFT) calculations. Results for clusters with identical numbers of constituents (O, Y, Ti, and vacancies) are compared. It is found that the data on the stability or energetics of the relaxed clusters are comparable although their atomic configurations are often different.

Primary orbital neuroblastoma with intraocular extension.

Neuroblastoma is an undifferentiated malignancy of primitive neuroblasts. Neuroblastoma is among the most common solid tumors of childhood. Orbital neuroblastoma is typically a metastatic tumor.