Search Our Scientific Publications & Authors

Case Rep Ophthalmol 2022 Jan-Apr;13(1):215-219. Epub 2022 Mar 24.

Retina Division, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.

Choroidal macrovessel (CM) is a rare anomalous vascular lesion in the choroid. In this case report, we describe a 72-year-old Caucasian man diagnosed with an incidental heavily branching CM in the macula of his right eye based on multimodal imaging, including enhanced depth imaging optical coherence tomography (OCT), swept-source OCT angiography, and indocyanine green angiography. Multimodal imaging is valuable in demonstrating the distinctive appearance of this entity and differentiating it from more vision-threatening differential diagnoses, such as ophthalmomyiasis interna, choroidal neoplasms, retinochoroidal anastomosis, and inflammatory conditions. Read More

PLoS One 2022 24;17(5):e0268856. Epub 2022 May 24.

Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.

Purpose: To evaluate agreement of total corneal power (TCP) measured by swept-source anterior segment optical coherence tomography (CASIA 2), Scheimpflug tomography (Pentacam AXL), and swept-source optical biometer (IOLMaster 700) in normal and keratoconic patients.

Methods: This is a prospective observational study conducted at King Chulalongkorn Memorial Hospital, Bangkok, Thailand. Biometric values were measured by each device for three times by two operators to evaluate repeatability and reproducibility of TCP. Read More

Nano Lett 2022 May 24. Epub 2022 May 24.

Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy.

CsPbBr nanocrystals (NCs) passivated by conventional lipophilic capping ligands suffer from colloidal and optical instability under ambient conditions, commonly due to the surface rearrangements induced by the polar solvents used for the NC purification steps. To avoid onerous postsynthetic approaches, ascertained as the only viable stability-improvement strategy, the surface passivation paradigms of as-prepared CsPbBr NCs should be revisited. In this work, the addition of an extra halide source (8-bromooctanoic acid) to the typical CsPbBr synthesis precursors and surfactants leads to the formation of a zwitterionic ligand already before cesium injection. Read More

J Cataract Refract Surg 2022 May 20. Epub 2022 May 20.

Department of Ophthalmology, Tel Aviv Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.

Purpose: To evaluate the agreement in biometry measurements and Intraocular lens (IOL) power calculations between two integrated swept-source-optical coherence tomography (SS-OCT) tomography/biometry devices: the Eyestar 900 (Haag-Streit Diagnostics, Koeniz, Switzerland) and the Anterion (Heidelberg Engineering, Heidelberg, Germany).

Setting: Tel-Aviv-Medical-Center.

Design: Retrospective comparative study. Read More

HardwareX 2021 Oct 16;10:e00240. Epub 2021 Oct 16.

NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.

This article describes the development of a compact, relatively low-cost, high compliance voltage laser driver that can provide the constant optical laser output required for a range of applications. The system contains an integrated, high-precision temperature controller that can be implemented with butterfly-style lasers containing an internal thermoelectric cooler. The laser parameters can be controlled manually or via an onboard microcontroller. Read More