Lens glaucoma spot symptoms are manifested by a shorter eye axis length, thicker crystal, more anterior relative position, and shallower anterior chamber. The pupil blocks the posterior chamber pressure, and the peripheral iris is pushed forward to block the atrial angle, resulting in obstructed atrial aqueous drainage and elevated intraocular pressure. The diet of patients with crystalline glaucoma spots should be careful: 1, pay attention to dietary hygiene, more easily digestible food, such as vegetables, fruits, etc. It is also important to keep the bowels open frequently. 2, “three taboos”, that is, avoid smoking, avoid spilling, avoid drinking strong tea. Excessive smoking, due to the role of nicotine can cause retinal vasospasm, resulting in optic nerve ischemia, cyanide in tobacco can cause toxic amblyopia, endangering visual function. Drinking large amounts of alcohol can cause capillary dilation of the eye, eye congestion increased, and even lead to acute attacks of glaucoma. Although often drink strong tea has the function of diuretic, but often in over-excitement, affecting sleep, causing an increase in intraocular pressure. 3, as far as possible, do not eat or eat less irritating food, such as chili, raw onion, pepper, etc.. 4, pay attention to moderate the amount of water (especially in winter), generally do not drink more than 500 ml of water each time. Because too much water at a time, can cause blood dilution, plasma osmolarity decreased, so that the atrial fluid production relatively increased, resulting in increased intraocular pressure.