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The three-dimensional simulation technology refers to the technology which can use the computer technology to generate a realistic virtual environment with visual, hearing, touch, taste, and other perception. Users can have interaction with entity in the virtual environment. With its very vivid virtual reality （VR） technology, 3D simulation technology has gained more and more attention and provided a new development platform for ophthalmology and optometry teaching. This paper mainly introduced teaching the present development situation and the specific application of the 3D simulation model, 3D animation technology, virtual reality technology in optometry and ophthalmology. 相似文献
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Objective To study the effect on accommodation of phakic intraocular lens implantation for high myopia. Methods In this prospective study, 32 eyes of 16 patients with high myopia received phakic intraocular lenses implantation in our hospital from August 2008 to March 2009 were collected. Age 19 to 35 years (mean age 27.56±4.50 years). Among them 10 patients received posterior chamber intraocular lens implantation surgery (PRL), 6 patients received the Verisyse iris-fixated phakic IOL surgery. The refractive diopter, best corrected visual acuity (BCVA), near point accommodation, positive/negative relation accommodation (PRA/NRA), monocular accommodation facility were measured preoperation, 1 week and 3 months postoperation, respectively. The data were analyzed with one-way ANOVA by SPSS15.0. Results The best corrected visual acuity (BCVA)of preoperation, 1 week 3 months and postoperation was 4.84±0.12, 4.91±0.11,4.92±0.11, respectively. The near point accommodationwas ( 10.02±1.92) cm, (14.38±3.59) cm,(13.19±2.91) cm, respectively. The near point accommodation of 1 week and 3 months postoperation was significant far migration compared with preoperation (F=19.45, P <0.05 ). The positive/negative relation accommodation (PRA/NRA), monocular accommodation facility ofpreoperation was (-2.29±0.48)D, (2.06±0.29)D, (9.50±2.00)cpm; and 1 week postoperation was (-2.05±0.33)D, (2.09±0.27)D, (9.34±1.70) cpm; and 3 months postoperation was (-2.19±0.35)D, (2.14±0.27)D, (9.63±1.76)cpm, respectively.There was no siguifieant difference of positive/negative relative accommodation and monocular accommodation facility between preoperation and postoperation (P >0.05 ). Conclusions The near point accommodation of postoperation has significant far migration. There is no significant difference of positive/negative relation accommodation, and monocular accommodation facility between preoperation and postoperation. 相似文献
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随着眼视光学教学改革的深入与发展,以计算机技术为核心的教育技术在眼视光学教学中发挥着重要的作用.针对传统检影验光理论教学存在的问题,将三维仿真技术应用于其中,对于提高教学质量、激发学生的学习兴趣、实现教学互动都有着重要意义.本文分析了检影验光三维仿真教学模型的开发、设计和实现原理,并对其在检影验光教学中的应用进行了分析,表明该方法具有直接生动,立体感强,重点难点教学优化等优点. 相似文献
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目的：探讨儿童功能性视觉障碍的临床特征、发病原因以及治疗和预后情况。方法：回顾性系列病例研究。选择2014年10月至2019年10月就诊于徐州复兴眼科医院确诊为功能性视觉障碍的儿童患者24例。收集患者的年龄、性别、发病时间、睫状肌麻痹后验光度数和视力、视野、色觉以及调节灵活度检查等资料，分析引起功能性视觉障碍的社会心理诱因、治疗以及预后情况。数据采用t检验进行分析。结果：24例功能性视觉障碍患者中男4例，女20例，年龄（9.8±2.0）岁。发病时间在1个月以内9例（37%），2～6个月10例（42%），大于6个月的5例（21%）。双眼最佳矫正视力均见不同程度下降，右眼0.39±0.22，左眼0.40±0.23，差异无统计学意义（t=-0.065，P=0.949）。20例（83%）以视力模糊为主诉。视野有异常的患者21例（87%），其中表现为周边不规则缺损8例（33%），向心性缩小8例（33%），中心和周边视野均累及5例（21%）；仅3例（13%）未见明显视野异常。调节灵活度异常24例（100%）。引起功能性视觉障碍的社会心理因素方面：学业压力大所占比例最高有8例（33%），其次是在人际（同学）关系矛盾方面5例（21%），家庭婚姻因素4例（17%），存在想戴眼镜心理3例（13%），另有其他原因4例（16%）。治疗上给予屈光矫正、心理安抚和暗示治疗，最终预后良好，58%患者在1个月内恢复，91%患者于1年内恢复。结论：儿童功能性视觉障碍以视力问题为最常见主诉，视野检查有其特殊的表现形式，色觉和调节功能多有异常，以学业压力大和人际（同学）关系矛盾为常见的社会心理因素，治疗以心理安抚和暗示为主，大部分患者预后较好。 相似文献
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目的 分析有晶状体眼人工晶状体植入术对高度近视患者调节功能的影响.方法 收集2008年8月至2009年3月在行有晶状体眼人工晶状体植入的高度近视患者16例(32只眼),年龄(27.56±4.50)岁(19～35)岁,其中10例接受后房型有晶状体眼人工晶状体植入手术(Visian ICL),6例行虹膜夹型有晶体眼人工晶状体植入手术(Verisyse).分别于术前和术后1周及术后3个月测量屈光状态、最佳矫正远视力、调节近点、正负相对调节(PRA/NRA)、调节灵活度.数据采用SPSS15.0统计软件包行单因素方差分析.结果 术前、术后1周及术后3个月的最佳矫正远视力分别为4.84±0.12、4.91±0.11、4.92±0.11:调节近点分别为(10.02±1.92)cm、(14.38±3.59)cm、(13.19±2.91)cm.术后1周和3个月时较术前明显远移(F=19.45,P<0.05);PRA/NRA、单眼调节灵活度术前分别为(-2.29±0.48)D、(2.06±0.29)D、(9.50±2.00)cpm,术后1周分别为(-2.05±0.33)D、(2.09±0.27)D、(9.34±1.70)cpm,术后3个月分别为(-2.19±0.35)D、(2.14±0.27)D、(9.63±1.76)cpm,正负相对调节和调节灵活度手术前后差异均无统计学意义(P>0.05).结论 高度近视有晶状体眼人工晶状体植入术后调节近点明显远移,正负相对调节和单眼调节灵活度手术前后无明显变化. 相似文献
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Objective To study the effect on accommodation of phakic intraocular lens implantation for high myopia. Methods In this prospective study, 32 eyes of 16 patients with high myopia received phakic intraocular lenses implantation in our hospital from August 2008 to March 2009 were collected. Age 19 to 35 years (mean age 27.56±4.50 years). Among them 10 patients received posterior chamber intraocular lens implantation surgery (PRL), 6 patients received the Verisyse iris-fixated phakic IOL surgery. The refractive diopter, best corrected visual acuity (BCVA), near point accommodation, positive/negative relation accommodation (PRA/NRA), monocular accommodation facility were measured preoperation, 1 week and 3 months postoperation, respectively. The data were analyzed with one-way ANOVA by SPSS15.0. Results The best corrected visual acuity (BCVA)of preoperation, 1 week 3 months and postoperation was 4.84±0.12, 4.91±0.11,4.92±0.11, respectively. The near point accommodationwas ( 10.02±1.92) cm, (14.38±3.59) cm,(13.19±2.91) cm, respectively. The near point accommodation of 1 week and 3 months postoperation was significant far migration compared with preoperation (F=19.45, P <0.05 ). The positive/negative relation accommodation (PRA/NRA), monocular accommodation facility ofpreoperation was (-2.29±0.48)D, (2.06±0.29)D, (9.50±2.00)cpm; and 1 week postoperation was (-2.05±0.33)D, (2.09±0.27)D, (9.34±1.70) cpm; and 3 months postoperation was (-2.19±0.35)D, (2.14±0.27)D, (9.63±1.76)cpm, respectively.There was no siguifieant difference of positive/negative relative accommodation and monocular accommodation facility between preoperation and postoperation (P >0.05 ). Conclusions The near point accommodation of postoperation has significant far migration. There is no significant difference of positive/negative relation accommodation, and monocular accommodation facility between preoperation and postoperation. 相似文献
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