Fundus contact lens

The fundus contact lens (koeppe's) is used to examine the posterior vitreous and posterior fundus on the optical axis of the eye. The Goldmann's flat-concave contact lens is now commonly used, and its composition is -55 to -60 diopters. Since the contact lens itself is not enlarged, the magnification of the fundus is equal to the magnification of the microscope used, and the fundus is positive, and the reflected light is less in use and easy to inspect. Basic Information Specialist Category: Ophthalmology Category: Endoscope Applicable gender: whether men and women apply fasting: not fasting Tips: Inappropriate people: There are procedures for anesthesia, installation, etc., but also for postoperative, child and mentally stressed people. Normal value The normal retina of the retina is transparent. Due to the relationship between the choroid and the pigment epithelial layer, the fundus is evenly orange-red. There are also more choroidal pigments and enriched between blood vessels, so that the red choroidal blood vessels are revealed as a leopard-like fundus. Clinical significance Abnormal result After high myopia, retinal detachment, endophthalmitis or eyeball trauma, there is often a phenomenon of posterior vitreous detachment. Need to check for patients with abnormalities in the retina of the population. Precautions Contraindications before inspection: The instrument must be clean. Inspection requirements: check as required. Inspection process When the contact lens is placed, the patient puts the lower jaw on the lower jaw and the head is fixed. The examiner holds the fundus contact lens with one hand and the joystick with one hand, pushing the slit lamp microscope forward, so that the focus is gradually stepped from the corneal surface. Move toward the fundus until you see the fundus. Not suitable for the crowd Inappropriate people: There are procedures for anesthesia, installation, etc., but also for postoperative, child and mentally stressed people.