While the wisdom of the Donguibogam reflects classical concepts, modern medical science describes very similar phenomena. Staring at smartphones and computer screens throughout the day leads to a state commonly known as digital eye strain.
First, looking at screens substantially decreases spontaneous blinking. The normal resting blink rate of 15 to 20 times per minute often drops to 5 to 7 times in front of a monitor. Incomplete blinks, where the eyelids do not fully meet, also occur more frequently. As a result, the protective tear film over the ocular surface evaporates rapidly, worsening dry eye syndrome. With insufficient moisture, the eyes become dry, irritated, and prone to hyperemia.
Second, the ciliary muscle inside the eye adjusts the lens to control focus. Continuous close-up viewing forces the ciliary muscle to remain under sustained contraction. Sustained exertion without rest tires this muscle, impairing focusing ability, producing heaviness around the eyes, and often causing a fatigue headache. What the Donguibogam identified as insufficient liver blood corresponds in modern physiology to reduced periorbital circulation and ciliary muscle fatigue.
Third, the autonomic nervous system is closely involved. Sustained stress and fatigue lead to excessive sympathetic nerve tone, which narrows blood vessels and keeps tissues tense. Microvessels supplying the periorbital region constrict, reducing oxygen and nutrient delivery. Conversely, targeted acupressure stimulates the parasympathetic nerve, promoting systemic relaxation, supporting local microcirculation, and relieving muscular tension around the orbits. This aligns closely with the concept of the free flow of qi and blood described in classical medicine.
Understanding these mechanisms shows that gentle periorbital stimulation is a practical, physiology-based method to encourage recovery and relieve strain.
