{"title":"眼睛是如何工作的","authors":"Obinna Umunakwe","doi":"10.1515/9781478021209-019","DOIUrl":null,"url":null,"abstract":"The sclera (the \"white\") surrounds most of the eye and gives it its structural strength. In the front of the eye is the cornea, transparent tissue that sticks out slightly from the sclera. Just behind the cornea, and easily seen through it, is the iris, which is the part of the eye with the characteristic brown, blue, hazel, or green color. There is a circular hole, the pupil, in the center of the iris. It appears black, because the interior of the eye is designed to absorb light, not to reflect it.","PeriodicalId":110177,"journal":{"name":"All about Your Eyes, Second Edition, revised and updated","volume":"402 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"How the Eye Works\",\"authors\":\"Obinna Umunakwe\",\"doi\":\"10.1515/9781478021209-019\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The sclera (the \\\"white\\\") surrounds most of the eye and gives it its structural strength. In the front of the eye is the cornea, transparent tissue that sticks out slightly from the sclera. Just behind the cornea, and easily seen through it, is the iris, which is the part of the eye with the characteristic brown, blue, hazel, or green color. There is a circular hole, the pupil, in the center of the iris. It appears black, because the interior of the eye is designed to absorb light, not to reflect it.\",\"PeriodicalId\":110177,\"journal\":{\"name\":\"All about Your Eyes, Second Edition, revised and updated\",\"volume\":\"402 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-04-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"All about Your Eyes, Second Edition, revised and updated\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1515/9781478021209-019\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"All about Your Eyes, Second Edition, revised and updated","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/9781478021209-019","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The sclera (the "white") surrounds most of the eye and gives it its structural strength. In the front of the eye is the cornea, transparent tissue that sticks out slightly from the sclera. Just behind the cornea, and easily seen through it, is the iris, which is the part of the eye with the characteristic brown, blue, hazel, or green color. There is a circular hole, the pupil, in the center of the iris. It appears black, because the interior of the eye is designed to absorb light, not to reflect it.
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