A pilot study on the lung morphology of shelter dogs in relation to air pollution in Trinidad.

Objective: To identify and characterize the gross and histological lesions associated with air pollution in the lungs of dogs from various locations in Trinidad.

Animals: 56 fresh lungs were obtained from already euthanized adult dogs collected from different locations in Trinidad at the Trinidad and Tobago Society for the Prevention of Cruelty to Animals.

Procedures: Lung specimens were examined grossly and tissue samples were taken for routine histologic examination.

Rare stromal corneal dystrophic diseases in Oman: A clinical and histopathological analysis for accurate diagnosis.

Introduction: Corneal dystrophy (CD) encirclements a heterogeneous group of genetically determined corneal diseases. Many features still remain unknown.

Aim: The purpose of this study was to highlight the clinical and the histopathological aspects of rare stromal CDs and to assess the clinical and the histopathological roles in their diagnosis.

Standard precaution measurements during ophthalmology practice in the pandemic stage of COVID-19.

Aim: To take specific precautions and keep a safe practice during providing ophthalmology health services without compromising the patient's safety as well as the team workers and the community in the pandemic stage of corona virus disease 2019 (COVID-19).

Methods: Applying patient circulation scheme implemented in our ophthalmology centers with the guidance of ministry of health infection control guidelines started from the moment that we receive a call or WhatsApp message or Facebook inquiry from patients until 21d after patients first visit if any. Four directions were taken.

Histopathological Parameters in Pterygia and Significant Clinical Correlations.

Purpose: To evaluate the clinical and histopathological parameters of pterygium to determine significant correlations between parameters that can affect management strategies.

Methods: A total of 47 pterygia were clinically examined and excised for histopathological evaluation of epithelial and stromal changes. Some samples were immunostained with P53 (a protein of 53 kilodalton used as dysplastic epithelial marker), CD20 (CD/cluster of differentiation, are group of surface receptors providing targets for cellular immunophenotyping, CD20 as a B lymphocyte marker), CD 3 (as T lymphocyte marker) or vascular endothelial growth factor (VEGF/as vascular marker).