Doctors Pupil Torch-Purple or Black

environments.

The primary function of a pupil torch is to emit a focused beam of bright white light, usually from an LED bulb. LED lights are preferred for their energy efficiency, long lifespan, and the consistent brightness needed for accurate assessment. The light intensity is carefully calibrated—not too harsh—to avoid patient discomfort while still being strong enough to prompt a pupillary response.

To use the pupil torch, a clinician shines the light briefly into each of the patient’s eyes and observes how the pupils respond—constricting promptly and equally in reaction to the light source. This helps in evaluating the function of the cranial nerves and detecting possible signs of head trauma, brain injury, or neurological disorders.