A clinical metagenomic study of biopsies from Mexican endophthalmitis patients reveals the presence of complex bacterial communities and a diversity of resistance genes.

Infectious endophthalmitis is a severe ophthalmic emergency. This infection can be caused by bacteria and fungi. For efficient treatment, the administration of antimicrobial drugs to which the microbes are susceptible is essential.

Caustics and wavefronts produced by multiple refraction-reflections through plane-parallel plates.

We study the formation of caustics and wavefronts produced by multiple refraction-reflections through a plane-parallel transparent plate, assuming a point source placed at an arbitrary position along the optical axis. The caustic surfaces are obtained by using the envelope's method. Subsequently, the wavefronts are directly related to the involutes, which are associated with the envelopes for all the rays.

Temporal Approach, Digitally Assisted Phacovitrectomy in a Patient with Severe Kyphosis due to Axial Spondyloarthritis.

Purpose: To describe a temporal approach, digitally assisted phacovitrectomy in a patient with severe kyphosis due to axial spondyloarthritis. . A 70-year-old male patient with proliferative diabetic retinopathy with vitreous hemorrhage and cataract and ankylosing spondylitis with severe kyphosis.

Primary Cancer Sites and Clinical Features of Choroidal Metastasis in Mexican Patients.

Purpose: To describe the primary cancer sites and clinical features of choroidal metastasis in Mexican patients.

Methods: This was a retrospective, observational, and multi-center study. Data were recollected from 6 ophthalmological hospitals in Mexico from patients with choroidal metastasis diagnosed from 2000 to 2018.

Oxymetazoline: reduction of subconjunctival hemorrhage incidence after intravitreal injections.

Objective: Subconjunctival hemorrhage (SCH) is an important minor side effect that might affect patient compliance to antivascular endothelial growth factor (anti-VEGF) intravitreal injection treatment (IVI). We sought to compare SCH incidence and pain score responses after topical oxymetazoline in naïve patients undergoing a single IVI of ranibizumab for diabetic macular edema.

Methods: Prospective, randomized, double-blinded, single centre study.