Data for: Performance of alternative diagnostic tests; Loop Isothermal Amplification Assay (LAMP), CFW+KOH, and a Smartphone based microscope-Dipple in the diagnosis of Fungal Keratitis among Patients attending MURHEC- Southwestern Uganda – User Guide

Persistent identifier

10.17037/DATA.00005249

Description

This dataset contains information collected from 88 patients enrolled in the study who presented at the Mbarara University and Referral Hospital Eye Hospital with signs of microbial keratitis between November 2023 and June 2025. It includes variables detailing participant demographics, clinical history, clinical presentation, and laboratory diagnoses based on corneal sample analysis.

Data collection methods

We prospectively recruited patients presenting with microbial keratitis (MK) at Mbarara University Referral Hospital and Eye Centre (MURHEC) between November 2023 and June 2025. Social demographic information was collected. Corneal scrapings were obtained from patients (n =88) with clinically suspected fungal keratitis. Routine diagnostic tests included microscopy (KOH and Gram stain), In vivo confocal microscopy (IVCM), Culture and Polymerase chain reaction (PCR). The alternative tests were Smartphone based microscope-Dipple, Loop isothermal amplification test (LAMP) and Calcofluor white+ Potassium Hydroxide (CFW+KOH). The data was analyzed with Stata 17 and summarized as tables for diagnostic yield by method, sensitivity and specificity of alternative tests against composite reference standard of IVCM, Microscopy and culture. The agreement and accuracy of the tests under study was presented by Kappa scores and McNemar’s p value.

Geographic regions

Patients were enrolled in the study on presentation at the Mbarara University and Referral Hospital Eye Hospital with signs of microbial keratitis.

Key dates

Data collection between November 2023 and June 2025.

Population

Patients were enrolled in the study on presentation at the Mbarara University and Referral Hospital Eye Hospital with signs of microbial keratitis.

Privacy

Dataset contains broad demographic details only.

Ethics

Organisation Ethics ID Other information
Mbarara University Research Ethics Committee MUST-2022-592 Additional ethical approved for sharing provided on 4 June 2026
Uganda National Council for Science and Technology HS2719ES  

Keywords

Microbial keratitis; bacterial keratitis; fungal keratitis; keratitis; blindness; LAMP, Calcofluor white with potassium hydroxide, Uganda

Language of written material

English

Project information

Project name Funder/sponsor Grant number
Performance of alternative diagnostic tests; Loop Isothermal Amplification Assay (LAMP), CFW+KOH, and a Smartphone based microscope-Dipple in the diagnosis of Fungal Keratitis among Patients attending MURHEC- Southwestern Uganda Velux Stiftung Switzerland 1703
Performance of alternative diagnostic tests; Loop Isothermal Amplification Assay (LAMP), CFW+KOH, and a Smartphone based microscope-Dipple in the diagnosis of Fungal Keratitis among Patients attending MURHEC- Southwestern Uganda Wellcome Trust 207472/Z/17/Z

Creators

Forename Surname Faculty / Dept Institution Role
Arunga Simon   Department of Ophthalmology, Mbarara University of Science and Technology, Mbarara, Western Region, Uganda   International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom Study Design/Data Creator/ Manuscript writing
Orishaba Francis Department of Ophthalmology Mbarara University of Science and Technology, Mbarara, Western Region, Uganda Study Design/Data Creator/manuscript writing
Ebong Abel Department of Ophthalmology Mbarara University of Science and Technology, Mbarara, Western Region, Uganda Data Creator
Kassaza Kennedy Department of microbiology Mbarara University of Science and Technology, Mbarara, Western Region, Uganda Data Creator
Karuhanga Naome Department of microbiology Mbarara University of Science and Technology, Mbarara, Western Region, Uganda Data Creator

Associated roles

Forename Surname Faculty / Dept Institution Role
Ayebare David Department of Public Health Mbarara University of Science and Technology, Mbarara, Western Region, Uganda Data Analysis
Leck Astrid International Centre for Eye Health London School of Hygiene & Tropical Medicine, London, United Kingdom Study design
Butcher Robert International Centre for Eye Health London School of Hygiene & Tropical Medicine, London, United Kingdom Study design
Onyango John Department of Ophthalmology Mbarara University of Science and Technology, Mbarara, Western Region, Uganda Reviewing the manuscript
Bazira Joel Department of microbiology Mbarara University of Science and Technology, Mbarara, Western Region, Uganda Reviewing the manuscript
Burton Mathew J.   International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom.   National Institute for Health Research Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London. United Kingdom Study Design/ Reviewing the manuscript

File description

Filename Description Access status Licence
Novel_tests_dataset Data collected from patients who presented with signs of microbial keratitis Controlled Data Sharing Agreement
Novel_tests_dataset_codebook Codebook for the Fungal Keratitis dataset Open Creative Commons Attribution (CCBY)
Supplementary_material Supplementary material file containing details on the reaction mix and master mix target concentration Open  
STARD-2015-Checklist SIARD 2015 checklist for paper Open Creative Commons Attribution (CCBY)