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当前位置:首页 > 商业/管理/HR > 经营企划 > 眼的屈光和屈光不正课件
眼的屈光和屈光不正浙医一院顾扬顺AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.眼的屈光系统组成:角膜、房水、晶状体、玻璃体AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.复合透镜折射作用在视网膜上形成倒立、缩小的实像AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.正视眼当眼调节静止时,外界平行光经眼的屈光系统后恰好在视网膜黄斑中心凹聚焦。AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.调节视近时,像落在视网膜后,此时眼球自动增加眼的屈光力,使像落在视网膜上。眼球这种自动调焦的功能称为调节AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.调节的机理睫状肌收缩悬韧带松弛晶状体变凸前移屈光力增加AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.屈光不正定义分类:近视远视散光AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.近视眼在调节放松状态下,平行光线经眼球屈光系统聚焦在视网膜之前AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.近视发生原因环境因素遗传AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.近视的临床表现远距视物模糊,近视力好注视远处物体时眯眼视疲劳外隐斜或外斜视近视度数较高者:夜间视力差,飞蚊症,闪光感;近视眼底改变AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.近视的并发症1、玻璃体异常2、视网膜脱离3、青光眼4、白内障AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.检查方法客观验光:检影验光、电脑验光主角验光:插片验光、综合验光AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.近视的治疗矫正(凹透镜)框架眼镜角膜接触镜屈光手术AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.屈光手术的适应证年龄近视屈光度稳定近视屈光度范围角膜厚度其它眼病全身禁忌症AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.屈光手术的种类角膜屈光手术眼内屈光手术AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.远视眼调节放松时,平行光线经过眼的屈光系统后聚焦在视网膜之后。AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.远视的临床表现(1)视力低度远视(+3.00D)年轻时能在视远时使用调节代偿,不影响视力中度远视(+3.00D~+5.00D)视力受到影响高度远视(+5.00D)视力受到明显影响易弱视AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.远视的临床表现(2)视疲劳(3)内斜视调节性内斜视(4)病理变化青光眼、眼底改变等AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.远视的治疗矫正(凸透镜)框架眼镜角膜接触镜低度远视如无症状无需矫正屈光手术AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.散光眼球不同子午线上屈光力不同,形成两条焦线和最小弥散斑的屈光状态AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.散光的临床表现1、视力减退2、视疲劳AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.散光的矫正矫正(柱镜)框架眼镜硬性角膜接触镜●屈光手术AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.屈光参差双眼的屈光状态不相等称为屈光参差AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.老视年龄增长晶状体调节能力下降,出现近距离工作困难,这种由于年龄增长所致的生理性调节减弱称为老视老视不是屈光不正AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.老视的临床表现近视力下降,光线不足时更为明显视疲劳AstheonlybigagriculturalvillageinTiandingTownship,someachievementshavebeenmadethroughthebeneficialexplorationofvillagers'autonomyinfamilyplanningformorethanayear.老视的治疗矫正原有屈光不正选择合适的阅读距离进行老视验配矫正方法:框架眼镜激光手术Astheonlybigagriculturalvi
本文标题:眼的屈光和屈光不正课件
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