Per the 2024 National Light Environment Health Report released by the National Clinical Research Center for Ocular Diseases, 38.7% of teenagers in China experience symptoms like dry eyes and eye irritation—62% of which are linked to prolonged exposure to poor light environments. These invisible harms stem mainly from three aspects:
01 Cumulative Harm of Invisible Flicker
Current fluctuations in ordinary lamps cause high-frequency flicker. Though imperceptible to the naked eye, retinal cells stay in a state of constant tension and adjustment. Experimental data shows: after 1 hour of continuous eye use in an environment with excessive flicker, ciliary muscle fatigue rises by 40%; long-term accumulation may speed up annual myopia progression by 15%-20%.
02 Selective Damage from Blue Light Wavelengths
Short-wave blue light (400-450nm) has high-energy properties, capable of penetrating the lens to reach the retina directly. Via fundus imaging technology, ophthalmologists found: long-term exposure to excessive blue light triggers lipid peroxidation in retinal macular cells. This damage initially only causes reduced night vision; once obvious symptoms appear, it is often irreversible.
03 Adjustment Burden from Uneven Illuminance
The circular light spot of traditional desk lamps creates a "bright center, dark edges" brightness difference, forcing eyes to constantly adjust focus to adapt to light/dark changes. Comparative experiments show: in environments with illuminance uniformity below 1:3 (national standard is 1:3), children’s blink rate drops from 15-20 times/min (normal) to 8-10 times/min, and tear film breakup time shortens by 30%—accelerating ocular surface dryness.
