In the case of a corneal ulcer due to organic material contamination, which intervention is contraindicated?

In cases of corneal ulcers resulting from organic material contamination, the use of a pressure patch is contraindicated. This is primarily because organic material can introduce bacteria or other pathogens into the cornea, creating a higher risk for infection and potentially worsening the condition. A pressure patch may keep the eyelid closed and thereby trap these infectious agents against the corneal surface, which can exacerbate the ulceration and delay healing.

On the other hand, interventions such as ophthalmic antibiotics are crucial in treating corneal ulcers, as they help target any potential bacterial infections. Examination for visual acuity is important in assessing the severity of the injury and monitoring the impact on vision. Additionally, copious irrigation is necessary to remove any foreign material present in the eye, reduce the risk of infection, and promote healing of the cornea. Thus, while certain treatments are very useful in managing corneal ulcers, using a pressure patch in the context of an organic contamination is inappropriate due to its potential to worsen the situation.