The aim of this observational study was to retrospectively examine the clinical data of patients with infectious endophthalmitis and to analyse their clinical characteristics.

The main question it aims to answer is: to find the differences between endogenous and exogenous endophthalmitis and to provide new ideas for the diagnosis and treatment of infectious endophthalmitis.

Inclusion Criteria:

• Patients diagnosed with infectious endophthalmitis by specialist examination. The clinical diagnosis of endophthalmitis was established on the basis of clinical signs and symptoms, including ocular pain, loss of vision, eyelid oedema, conjunctival congestion, inflammation of the anterior chamber (flare-ups, cells, pupillary fibrin membranes, and pus accumulation in the anterior chamber), vitritis, and vitreous clouding on B-scan ultrasound. The diagnosis of infectious endophthalmitis was clarified by the aqueous vitreous pathogen detection test.

Exclusion Criteria:

• Patients with incomplete medical records; non-infectious uveitis, retinal tumour disease, ocular ischaemia syndrome and other diseases with similar manifestations to endophthalmitis.

All inhabitants