The normal value of the central depth of the anterior chamber is 2.3~3 mm. Shallow anterior chamber is mostly seen in hyperopic eyes, which is easy to induce acute angle-closure glaucoma, with symptoms such as loss of vision, reddened and congested eyes, eye swelling and pain, nausea and vomiting. Some are caused by intraocular surgery. The deep anterior chamber is mostly caused by eye trauma, and can also be caused by lens dislocation or its removal. Regardless of whether the anterior chamber is too shallow or too deep, ophthalmologic examination is needed to clarify the diagnosis, the cause of the symptomatic treatment, according to the condition of the next step in the treatment method is the key.