The lens is equivalent to a 1000-1200 degree distance vision lens, and the anterior-posterior axis of the lens is almost identical to the visual axis, so when the lens is dislocated, the patient will first experience varying degrees of vision loss. When the lens is semi-dislocated, it can produce diplopia in one eye, with one image formed through the area with the lens and the other image, which is smaller, formed through the area without the lens. A total dislocation of the lens, if embedded in the pupillary area or dislocated into the anterior chamber, can cause obstruction of atrial circulation, squeeze the iris, and block the anterior chamber angle, resulting in elevated intraocular pressure and secondary glaucoma. If the detachment is located in the vitreous, it can lead to allergic uveitis and secondary glaucoma. Therefore, when the lens is dislocated in the anterior chamber and pupil, the embedded lens requires timely surgical treatment.