Advanced air filters in operation theatres offer no extra benefit towards infection prevention in cataract surgeries: study

A recent study conducted at the Aravind Eye Care System in southern India has found that installing advanced air filters in operating theatres for cataract surgeries does not provide additional protection against infection. The study, published in the American Journal of Ophthalmology, compared endophthalmitis rates in operating rooms equipped with laminar air flow and high-efficiency particulate air filters to those without these systems.

Despite the higher costs associated with these systems, researchers found no statistically significant difference in infection rates across various ventilation setups, including those with LAF and HEPA, central AC with HEPA, central AC without HEPA, and split AC without HEPA. The study's authors, citing the findings, argue that mandating these more expensive systems in ophthalmic surgery could impose unnecessary infrastructure barriers in resource-limited settings and high-income countries.

The researchers emphasize that safe cataract surgery can be achieved with rigid aseptic protocols, even in the absence of expensive air handling units.