Relevance of multicolor imaging, its component channels, and fundus autofluorescence in describing macular telangiectasia type-2 (MacTel) lesion characteristics.

Purpose: The aim of the study was to describe imaging characteristics and detection rates of phenotypic features in macular telangiectasia type-2 (MacTel) on multicolor (MC), blue reflectance (BR), green reflectance (GR), infrared reflectance (IR), and fundus autofluorescence (FAF) and to evaluate sensitivity, specificity, and predictive values across modalities.

Methods: In this monocentric observational study, 282 eyes of 148 patients with MacTel underwent color fundus photograph, MC, BR, GR, IR, FAF, spectral-domain optical coherence tomography (SD-OCT), OCT-angiography (OCT-A), and fundus fluorescein angiography (FFA). Grading was done by two graders qualitatively and quantitatively for the presence of the following prespecified MacTel findings [crystals, right-angle vessels (RAVs), plaques, subretinal neovascularization (SRNV), and MacTel area].

Lightning injuries of the posterior segment of the eye.

Lightning causes serious injuries and deaths worldwide every year. Ophthalmic injuries due to lightning are due to direct or indirect transmission of electric current, resistance-induced heat, and heat-induced shock wave. PubMed search of articles related to posterior segment injuries caused by lightning using keywords (lightning injury, ophthalmic manifestations, ocular injuries, and posterior segment) was conducted, and 19 case reports in 17 articles including 29 eyes with lightning injury to the posterior segment of the eye from 1984 to 2019 were reviewed.

Lateral elongation of flat irregular pigment epithelial detachment: A novel optical coherence tomography biomarker in polypoidal choroidal vasculopathy.

Purpose: To explore novel Optical Coherence Tomography (OCT) biomarkers and precursor lesions in Polypoidal Choroidal Vasculopathy (PCV).

Methods: This retrospective cohort study included 76 treatment naïve fellow eyes of PCV. Focus was given to analyse the various morphological changes in the clinically unaffected fellow retina during the follow-up period.

Histology and scanning electron microscopy of the tubal tonsil of goats.

Aim: To observe the light and scanning electron microscopy (SEM) of the caprine tubal tonsil.

Materials And Methods: The study was conducted on six crossbred male goats of 6 months of age. From the median sections of the head, tissue pieces from the nasopharynx around the auditory tube were collected and fixed for histology and SEM.