An observational study in Endophthalmitis, sponsored by Asociación para Evitar la Ceguera en México. Recruiting at 1 site in Mexico. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-09-16.
Sponsored by Asociación para Evitar la Ceguera en México · Observational
This study aims to describe and investigate vascular changes associated with exogenous endophthalmitis, as well as to create a photo library where they are evidenced
The implementation of multimodal imaging studies during the diagnosis and follow-up of patients with endophthalmitis may help identify, characterize, and differentiate between changes associated with host immune response, drug toxicity, or ischemia, thereby opening the possibility of implementing early treatments that lead to a better final prognosis. It is designed as a Prospective, Longitudinal, Observational, and Descriptive study. The population will be patients of the retina and vitreous service of Asociación para Evitar la Ceguera en México, who have a complete clinical record (age, sex, pathological personal history, non-pathological personal history, heredofamilial history, ophthalmologic history, allergies, medications, ophthalmologic examination with visual acuity, intraocular pressure at each visit), signed informed consent and with a history of exogenous or endogenous endophthalmitis with clear resolution criteria and clear means one week and one month after meeting the resolution criteria to be able to perform fluorescein angiography at both visits.
65 studies on the registry are indexed under Endophthalmitis; 9 are open to participants now.
This study's planned enrollment of 71 is below the median of 100 across 20 observational studies indexed under Endophthalmitis.
Browse Endophthalmitis studies →Asociación para Evitar la Ceguera en México is the lead sponsor of 60 studies on the registry; 6 are open to participants now.
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The population will be patients of the retina and vitreous service of Asociación para Evitar la Ceguera en México, who have a complete clinical record (age, sex, pathological personal history, non-pathological personal history, heredofamilial history, ophthalmologic history, allergies, medications, ophthalmologic examination with visual acuity, intraocular pressure at each visit), signed informed consent and with a history of exogenous or endogenous endophthalmitis with clear resolution criteria and clear means one week and one month after meeting the resolution criteria to be able to perform fluorescein angiography at both visits.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Fundus photography, Optical Coherence Tomography, and Fluorescein Angiography will be performed 7 days after meeting the criteria for inactivation of endophthalmitis, as outlined in the MEX-ESG guidelines. These imaging tests will be repeated one month after meeting the inactivation criteria.
Best-Corrected Visual Acuity (BCVA)
Best-Corrected Visual Acuity (BCVA) will be assessed according to the ETDRS guidelines. The test must be performed with the patient positioned 4 meters from the backlit panel, which must be calibrated to emit 85 cd/m². This procedure will be carried out by the retina fellow assigned to the case.
Time frame: The assessment will be performed at each visit (7 days and 1 month after meeting the inactivation criteria for endophthalmitis).
Fluorescein Angiography
Fluorescein angiography will be performed subsequently to evaluate associated vascular changes. The patient must undergo an 8-hour fast and have pupillary dilation with TP Ofteno® (tropicamide 5% / phenylephrine 0.8%). The procedure involves preparing the patient with aseptic technique for an intravenous injection of fluorescein dye in an upper limb, followed by imaging with a fundus camera. It is not essential to use a device of a specific brand or model, as long as a system with equivalent specifications is used consistently for the same patient throughout the study. A technician or delegated personnel may perform the procedure.
Time frame: The procedure may be performed at all study visits (7 days and 1 month after meeting the inactivation criteria for endophthalmitis).
Fundus Photography
Fundus imaging will be performed using the Clarus 700 Zeiss, Serial #CL700-73467, Software version 1.1.2.59261, Digital Camera Magnification 133°. Images of the posterior pole and retinal periphery will be captured, providing a comprehensive view of retinal integrity, the optic nerve, and its vasculature.
Time frame: The procedure may be performed at all study visits (7 days and 1 month after meeting the inactivation criteria for endophthalmitis).
PDFs hosted by the registry, ClinicalTrials.gov.
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Asociación para Evitar la Ceguera en México