Which of the following classifications of hyphaema corresponds to being completely full of blood in the anterior chamber?

The correct classification of hyphema that indicates being completely full of blood in the anterior chamber is Grade 4. Hyphema is categorized based on the amount of blood present in the anterior chamber, with different grades indicating the severity of the condition.

In Grade 4 hyphema, the anterior chamber is filled entirely with blood, which can lead to increased intraocular pressure and potential complications like glaucoma, corneal blood staining, and decreased vision. Understanding the severity of hyphema through these classifications is crucial for determining the appropriate management and treatment plan for the patient.

The other grades indicate varying amounts of blood; for example, Grade 1 reflects a small amount of blood, while Grade 3 indicates nearly complete coverage but not total. Each grade helps guide clinicians in assessing the urgency and type of intervention required.