What tests are needed for patients with glaucoma spots? Vision Screening Instrument Vision screening is the most important test for early childhood amblyopia, and this type of instrument has the advantages of being objective, accurate and fast. Automatic and non-manipulative: at a distance of 14 inches (35 cm) a button can be pressed and the test is performed. Fast and effective, 5 seconds to complete the automatic test of both eyes. Visual field meter examination Visual field meter examination is performed to understand changes in the visual field and to provide a diagnostic basis for ophthalmic diseases such as glaucoma. It includes both peripheral and central visual field examinations. The examinee’s chin is fixed on the chin rest of the visual field meter. When examining the right eye, the right eye must be focused on the white gaze point in the center of the visual field meter, covering the left eye. The examiner moves the visual field marker slowly along the arc of the visual field meter from the periphery to the center, and when the examinee sees the visual field marker, the number of degrees is recorded on the chart. Anterior chamber depth measurement Anterior chamber depth measurement is clinically important in ophthalmology. The anatomical basis for the development of closed-angle glaucoma is the shallow anterior chamber, narrow atrial angle, and disproportionate enlargement of the lens. Therefore, the measurement of anterior chamber mid-axis depth is very important in the early diagnosis of closed-angle glaucoma and in the estimation of the evolution of the disease. Anterior chamber angioscopy The anterior chamber angioscopy is an examination of the width of the anterior chamber angle and its change in width during intraocular pressure fluctuations, which is important for the diagnosis and treatment of various glaucomas. In addition, anterior chamber angle microscopy is also helpful in the diagnosis of foreign bodies in the anterior chamber angle or tumors and neovascularization of the iris root. Pupillary Examination Pupillary examination includes examination of the pupil’s appearance as well as the pupillary reflex. The pupil’s appearance includes the size, shape, number and position of the pupil as well as the neatness of the margins, which should be compared on both sides during the examination.