In general, the bulb brightness is too high will hurt the eyes, the patient may appear photophthalmitis, cataracts, macular burns and so on. 1. Electro-optic ophthalmia: Due to the ultraviolet component of bright light or light, burning the corneal epithelium can cause electro-optic ophthalmia. Generally there is a certain incubation period, in about 6-8 hours after exposure to bright light, the patient began to develop, there can be strong eye pain, foreign body sensation, congestion, redness, vision loss and other discomforts. 2. Cataract: Infrared light and other components of strong light, when the light is refracted by the lens, part of the energy is absorbed by the lens, causing the degeneration of the lens fibers, so that the transparency of the lens is reduced and cataract is formed. 3. Macular burns: the focus formed by the bright light is focused on the macular area of the retina, and the energy of the light causes damage to the retinal tissue, which can cause macular burns. It is recommended that patients with eye discomfort caused by high light intensity should consult a doctor in time to assess their condition and follow the doctor’s instructions for treatment.