In the context of the eye, what does "punctual occlusion" aim to address?

Punctual occlusion is a procedure specifically designed to manage dry eye syndrome by preventing tears from draining too quickly away from the surface of the eye. This technique involves blocking the puncta, which are the small openings in the inner corners of the eyelids that drain tears into the drainage system. By occluding these openings, the tears remain on the surface of the eye for a longer period, thus providing better lubrication and alleviating dryness. This method is particularly beneficial for individuals who experience insufficient tear production or for those whose tears evaporate too quickly.

The other options focus on different aspects of eye health. Reducing intraocular pressure is relevant in the treatment of glaucoma, while correcting refractive errors relates to improving vision through corrective lenses or surgical interventions. Enhancing visual acuity pertains to interventions that improve clarity of vision, which is distinct from the moisture and comfort that punctual occlusion aims to provide.