Which symptoms are indicative of retrobulbar haemorrhage?

The appropriate symptoms that indicate retrobulbar haemorrhage primarily include pain, proptosis (which is the forward displacement of the eyeball), loss of pupil reactions, and paralysis of the extraocular muscles.

In the case of retrobulbar haemorrhage, the bleeding occurs behind the orbit, leading to increased pressure inside the eye socket that can cause a series of direct effects on the ocular structure and function. Pain is often a result of the pressure exerted by the accumulation of blood. Proptosis is a significant sign of retrobulbar haemorrhage, as the increased volume of blood pushes the eye forward. Additionally, the increased pressure can impair the function of cranial nerves, leading to loss of pupil reactions (inability of the pupil to respond to light) and potential paralysis of the extraocular muscles, causing limitations in eye movement.

This set of symptoms is clearly associated with the acute presentation of retrobulbar haemorrhage, where timely recognition and intervention are crucial to prevent long-term vision impairment or other complications. In contrast, the other options present symptoms that are more associated with different ocular conditions or disorders, distinguishing them from retrobulbar haemorrhage.