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本世纪初,人们就认识到应用单色光作眼底检查的重要意义。Ginestous(1911)曾进行使用非白色光观察眼底的研究;Vogt(1913)首次在临床上应用无赤光检查眼底。Kugelberg(1934)应用低敏感光片和滤光片作单色光眼底摄影术,试图将眼底图象永久性记录下来。但由于当时设备简陋和技术水平低,所拍摄的照片不能显示眼底细节,故该项技术未能应用于临床。近年来,随着新器械和新技术,如高分辨力眼底照相机、强亮度光源、高敏度感光片和干涉滤光片等的出现和发展,单色光眼底摄影术才日臻完善,并广泛应用于眼底病的科研和临床。所谓单色光就是单一波长的光。用它作为眼底摄影术的照明光源,具有不同于白光的一些优点:(1)增加眼底各结构之间的图象对比度;
The beginning of this century, people realized that the application of monochromatic light as the significance of fundus examination. Ginestous (1911) studied the use of non-white light to observe the fundus; Vogt (1913) applied the first clinical red-eye without fundus examination. Kugelberg (1934) used low-sensitivity light filters and filters for monochromatic light fundus photography in an attempt to permanently record fundus images. However, due to poor equipment and low level of technology at that time, the pictures taken can not show the details of the fundus, so the technology failed to be used in clinical practice. In recent years, monochromatic light fundus photography has been improved with the appearance and development of new devices and new technologies such as high-resolution fundus cameras, intense light sources, high-sensitivity sensitive films, and interference filters, and has been widely used Fundus research and clinical. The so-called monochromatic light is a single wavelength of light. Use it as the fundus photography illumination light source, has some advantages different from the white light: (1) increase the contrast of the image between each fundus structure;