Comparing smartphone camera adapters in imaging post-operative cataract patients.

Introduction The goal of this study is to compare image quality and clinical confidence for managing post-operative cataract patients based on anterior segment smartphone images obtained in real-world settings using four types of adapters: (a) macro lens (ML), (b) ML with augmented light-emitting diode (LED) illumination (ML-LED), (c) no adapter (NA) and (d) slit lamp (SL) adapter. Methods Anterior segment images were obtained from 190 eyes after cataract surgery using an eight-megapixel iPhone 6 smartphone camera with four adapters: ML, ML-LED, NA, and SL. Smartphone images were subjectively rated by ophthalmologists as acceptable or not acceptable for: (a) image quality for evaluating the anterior segment structures and (b) reader confidence in clinically managing post-operative patients based on smartphone images.

Assessing the accuracy and feasibility of a refractive error screening program conducted by school teachers in pre-primary and primary schools in Thailand.

Introduction: As part of the development of a system for the screening of refractive error in Thai children, this study describes the accuracy and feasibility of establishing a program conducted by teachers.

Objective: To assess the accuracy and feasibility of screening by teachers.

Methods: A cross-sectional descriptive and analytical study was conducted in 17 schools in four provinces representing four geographic regions in Thailand.