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▲视力:又称视敏度,即识别两个发光点所需要的最小距离,表现为辨别注视目标的能力。视力愈好,两点所需要的最小距离电愈小。 ▲中心视力:指眼底黄斑窝小心的视力而言。平时升学、参军、体检时所查的视力都是查中心视力。大视力表、检查距离为5米时所查视力为远视力,正常视力在1.0以上。小视力表,距离为30厘米所查的视力为近视力,正常视力电在1.0以上。 ▲周围视力:指眼底视网膜黄斑以外的视力,即视
▲ visual acuity: also known as visual acuity, that is, the minimum distance required to identify the two luminous points, the performance of the ability to identify the fixation of the target. The better the eyesight, the smaller the distance needed for the two points. ▲ central visual acuity: refers to the macular fossa eye sight carefully. Usually go to school, join the army, check the visual acuity are checked center of vision. Large visual acuity chart, check the distance of 5 meters when the visual acuity is far vision, normal visual acuity of 1.0 or more. Small visual acuity chart, the distance of 30 cm of the inspection of visual acuity for near vision, normal visual acuity in 1.0 or more. ▲ around the eyesight: refers to the retina outside the macular vision, that is, depending on