front mirror

The anterior lens is an instrument for examining the posterior vitreous and inflammatory lesions of the eye. 1 The patient's posture and posture are the same as those of the slit lamp. 2 fully dilated. 3 Place the front mirror in front of the patient's eyes, and the angle between the light and the microscope is within 10°. 4 Push the operating handle of the slit lamp to make the focus move backwards, so that the posterior vitreous and fundus lesions can be seen. Basic Information Specialist Category: Ophthalmic Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Tips: Do not use drugs indiscriminately. Normal value When the early holes were not formed, only the yellow spots and yellow rings were seen in the macular area, and sometimes the vitreous traction and the preretinal membrane were present. After the disease progresses, the macular hole is formed. Under the ophthalmoscope, there is a circular hole with a dark red base. It can also be a half-moon shape or a horseshoe shape with different diameters, but most of them are 1/4 to 1/2 PD. If accompanied by cystic edema around the hole, it can be expressed as a halo ring. In the late stage, there is a vitreous detachment or a free cover. Clinical significance Abnormal results There is little chance of cystic edema around the macular hole, formation of the anterior membrane of the retina, but retinal detachment. Patients with idiopathic macular hole who need to be examined. Precautions Taboo before the test: Do not use drugs. Requirements for examination: Refractive error is to be corrected. Inspection process 1 The patient's posture and posture are the same as those of the slit lamp. 2 fully dilated. 3 Place the front mirror in front of the patient's eyes, and the angle between the light and the microscope is within 10°. 4 Push the operating handle of the slit lamp to make the focus move backwards, so that the posterior vitreous and fundus lesions can be seen. Not suitable for the crowd Inappropriate people: There are no elderly people with a history of ametropia, trauma, or intraocular disease.