WO2007076680A1 - Instrument pour la lecture et l'ecriture destine a prevenir et traiter la myopie - Google Patents

Instrument pour la lecture et l'ecriture destine a prevenir et traiter la myopie Download PDF

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Publication number
WO2007076680A1
WO2007076680A1 PCT/CN2006/003323 CN2006003323W WO2007076680A1 WO 2007076680 A1 WO2007076680 A1 WO 2007076680A1 CN 2006003323 W CN2006003323 W CN 2006003323W WO 2007076680 A1 WO2007076680 A1 WO 2007076680A1
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Prior art keywords
myopia
myopia prevention
plane mirror
lens
eye
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PCT/CN2006/003323
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English (en)
French (fr)
Inventor
Minghua Dai
Yaodong Dai
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Minghua Dai
Yaodong Dai
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Application filed by Minghua Dai, Yaodong Dai filed Critical Minghua Dai
Priority to EA200801624A priority Critical patent/EA013804B1/ru
Publication of WO2007076680A1 publication Critical patent/WO2007076680A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02Viewing or reading apparatus
    • G02B27/021Reading apparatus

Definitions

  • the present invention relates to the field of physiotherapy trainers for the eye. BACKGROUND OF THE INVENTION The inventors have invented a reading telescope, the patent authorization announcement number is
  • CN2451083Y which has a lens barrel with two reflection bends, the port on the lens barrel is a peephole, and the lower port of the lens barrel is equipped with a magnifying glass.
  • the reading telescope uses the optical principle to lengthen the distance from the object to the human eye, and the effect is good.
  • the reading telescope is limited by the long lens barrel, and its field of view is small, and it is inconvenient to use. It produces visual fatigue and has poor control effect.
  • the following is a magnifying glass.
  • the distance between the magnifying glass and the visual object is strict, which brings great limitations and inconvenience to the user. At the same time, the user's visual difference is not taken into consideration, so the ideal use and control effect cannot be achieved.
  • the object of the present invention is to provide a reading and writing myopia prevention device, which has broad vision, strong applicability, and is not easy to fatigue, can prolong work or study time, and can effectively prevent and treat myopia. Especially suitable for teenagers.
  • the above-mentioned reading and writing myopia prevention device can have one or two fields of view according to the angle of the plane mirror, which is convenient for the eyes to adjust the rest.
  • the above-mentioned literacy myopia prevention device may also be provided with a hood, and the primary plane mirror and the secondary plane mirror are both mounted in the hood, and the field of view may also be large.
  • a lens or a lens group may be provided at the above-mentioned visual hole to enhance the use and control effect thereof.
  • the diopter ⁇ of the lens or the lens group described above may also be 2D to 0.75D, which is a fixed type. Applicable to different individuals wearing glasses that are equipped with myopia while reading and writing, at this time, generally U is 0.5 ⁇ ! ⁇ 1.3m, B can take 0 ⁇ 1.5D.
  • the above-mentioned bracket may be provided with an up-and-down and/or rotation adjustable mechanism of the hood, or an up-and-down and/or rotation adjustable mechanism and a secondary plane mirror of the primary plane mirror. Rotating adjustable mechanism.
  • the angle between the central axis of the above-mentioned visual hole and the horizontal plane is preferably 10° to 40°.
  • the above-mentioned reading and writing myopia prevention device may also be provided.
  • the forehead support and/or the chin support can be positionally adjustable.
  • the present invention corrects several viewpoints and proposes The control mechanism of the present invention.
  • the invention turns the near work into a far-sighted work, and thus inevitably produces the opposite result, and in theory can prevent myopia.
  • the natural development process of the human eye is an inevitable process from farsightedness to frontal vision to myopia. Once myopia is irreversible, this view is one-sided.
  • the baby is a natural presbyopia, due to its visual development. It is necessary to constantly look at the near adjustment. This kind of external conditions prompts it to develop into the emmetropic eye. If it develops to the emmetropic eye too early, and continues to increase the near-sighted visual stimulation and burden, it develops into myopia, so the process of myopia is Depending on the visual environment, due to the near-eye adjustment and development, it causes myopia, and vice versa. If it is nearsighted, if you look farther, you should develop toward the emmetropia during development.
  • the adjustment that occurs to look far is called reverse adjustment.
  • Development will cause the possibility of hyperopia, anatomical display
  • the inside of the human eye has a close-adjusting muscle and a far-adjusting regulating muscle (such as a pupil-opening large muscle), so it is proved that it is far-reverse adjustment and changes to hyperopia.
  • drugs can be divided into: antispasmodic, stimulating optic nerve excitatory, nutritional drugs and drugs to regulate the growth rate of the eye
  • surgical methods have laser cutting to change the corneal diopter and Eyeball posterior sclera reinforcement methods, these methods do not consider the long-term view of the human eye is the most critical cause of myopia, so it is not the main method to prevent myopia, as for laser cutting cornea is to correct vision and prevention Myopia has different meanings. Therefore, prevention and treatment of myopia should solve the visual environment and change the eyes with close distance. This is the general direction of prevention and treatment of myopia.
  • the visual distance of the state is between 0.7m and 2m, which is not the infinity that is generally considered. Therefore, the human eye is not easy to fatigue at this suitable close distance. When looking farther and closer, the time is longer. It is easy to cause visual fatigue. Among them, only near-sighted fatigue is easy to cause myopia, and eliminating such visual fatigue can alleviate the development of myopia.
  • the invention designs a device with adjustable line of sight.
  • the eye When adjusting to a suitable distance of different eyes, the eye is not easy to fatigue, so the occurrence and development of myopia can be reduced, and when the distance is adjusted to a long distance, the eye is far away. To adjust the state, even if it produces some fatigue, it can treat myopia.
  • the design principle of the present invention is as follows - the occurrence and development of myopia is positively related to the three factors of long-term eye adjustment, collection, and near-perception, so it is necessary to grasp these three reasons, by changing the way of using the eye, to avoid looking near, and Look at the distance or use the optical principle to achieve the same effect to prevent myopia, and the analysis of the visual physiology of the human eye can be seen that the human eye is far away in nature: the ciliary muscles are close to the adjustment accommodation relaxation, the collection of the eyes is reduced. Absolutelldepth increases in absolute depth, and the visual scene becomes farther. The physiological responses of these three aspects are coordinated. Any uncoordinated ones will cause different degrees of damage to the physiological laws and cause discomfort.
  • the invention is designed according to this physiological law, which is reflected by plane on the one hand.
  • the secondary reflection of the mirror extends the optical path, making the person feel distant from the object, increasing the absolute depth (reducing the absolute parallax), reducing or eliminating the near perception.
  • the angle of view becomes smaller and it is difficult to distinguish (such as a small word).
  • the combination of the plane mirror and the lens and the triangular prism of the present invention is an optical visual meter that achieves the best comprehensive effect and avoids the long-term comprehensive effect and the strongest applicability.
  • FIG. 1 is a schematic view showing the structure of a first embodiment of the present invention.
  • Figure 2 is a right side view of Figure 1.
  • Fig. 3 is a schematic view showing the structure of a second embodiment of the present invention.
  • 1 is the bracket
  • 2 is the upper and lower rails of the frame body
  • 3 is the upper and lower rotation knob of the vertical plane mirror 5
  • the first is a plane reflection.
  • Mirror 6 is the forehead support pad
  • 7 is the visual hole
  • 8 is the lens or lens group
  • 9 is the chin support pad
  • 10 is the chin support pad adjustable knob
  • 11 is the secondary plane mirror
  • 12 is the secondary plane Rotary adjustable knob of the mirror
  • S1 is the length of the primary plane mirror to the object path
  • S2 is the optical path length of the primary plane mirror 4 to the secondary plane mirror
  • S3 is the lens or lens group to the secondary plane reflection
  • the optical path of the mirror 11 is long.
  • FIG. 3 13 is a frame body, and the primary plane mirror 4 and the secondary plane mirror 11 are all mounted in the hood 14.
  • the lens or lens group 8 and the frontal pad 6 are mounted on the hood 14, 15 Adjust the organization.
  • the center distance of the two lenses has left and right margins to suit different people's interpupillary requirements and form a spherical lens.
  • the eccentric effect to achieve the role of the additional base inward prism, to change the angle of view of the binocular line of sight.
  • Adjusting the chin support pad 10 in a suitable position can read and write, while preventing myopia, adjusting the secondary plane mirror so that the human eye completely obscures the line of sight of the human eye through the visual hole, the human eye sees a field of view, otherwise The eye can see two fields of view, one farther and one closer, which is beneficial to the human eye to alternately use.
  • the hood 14 is adjusted to a suitable height, and the primary plane mirror and the secondary plane mirror are fixed.
  • the diopter ⁇ of the lens or the lens group can be 2D ⁇ 0.75D, and the ⁇ , the front viewer or the nearsighted eye can be made at this time. Use your own glasses to control your use.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Rehabilitation Tools (AREA)

Description

N2006/003323 一种读写近视防治仪 技术领域 本发明属于用于眼睛的物理疗法训练器技术领域。 背景技术 本发明人曾发明了一种读书远望镜, 专利授权公告号为
CN2451083Y, 它具有一个带两个反射弯的镜筒, 镜筒上端口为窥视孔, 镜筒下端口装有一个放大镜。 该读书远望镜利用光学原理, 拉长了被视 物到人眼的距离, 效果较好, 但是该读书远望镜由于受长镜筒的限制, 其视野较小, 使用不方便, 很容易产生视疲劳, 防治效果差。 且下面为 放大镜, 对放大镜到视物的距离要求较严格, 给使用者带来很大限制及 不便, 同时使用时未考虑到使用者的视力差异,故不能达到较理想的使用 及防治效果。 发明内容 本发明的目的是提供一种读写近视防治仪,其视野广阔,适用性强,, 眼睛不易疲劳, 能延长工作或学习时间, 能有效地较好地防治近视。 尤 其适合青少年使用。
本发明的主要技术方案是: 一种读写近视防治仪, 包括支架、 一次 平面反射镜、 二次平面反射镜及目视孔, 其特征在于一次平面反射镜直 接反射视野物体光线, 总光路长 (S=S1+ S2+ S3 ) 大于等于 300mm, 小 于 5000mm。
上述的读写近视防治仪, 据平面反射镜的角度不同, 可具有 1个或 2个视野, 方便眼睛调节休息。
上述的读写近视防治仪, 也可设有一个遮光罩, 所述的一次平面反 射镜和二次平面反射镜均装在该遮光罩中, 视野也可较大。
上述的目视孔处可设有透镜或透镜组, 以增强其使用和防治效果。 上述的透镜或透镜组的屈光度 Φ可按下述公式配制, Φ =1/U+A+B, 其中 U为预设总光路长 (S), A为近视度, B为散焦屈光度。
上述的透镜或透镜组的屈光度 Φ也可为 2D〜0.75D, 为固定式, 可 适用于不同的个体戴已配的眼镜在读写的同时进行近视防治, 此时, 一 般 U为 0.5π!〜 1.3m, B可取 0〜1.5D。
为调节使用方便, 纠正坐姿, 上述的支架上可设有遮光罩的上下和 / 或旋转可调机构, 也可设有一次平面反射镜的上下和 /或旋转可调机构及 二次平面反射镜的旋转可调机构。
为读写更自然,上述的目视孔的中轴线与水平面的夹角最佳为 10°〜 40°, 为了纠正坐姿, 防止颈椎病, 上述的一种读写近视防治仪上也可设 有额部支垫和 /或下巴支垫。 额部支垫和 /或下巴支垫可为位置可调式。
关于防治近视眼的机理:
在中国乃至国际近视眼研究学术界, 对防治近视眼存在着许多不同 的观点, 因为尚未出现一种公认而有效的防治方法, 所以对此问题的认 识非常混乱, 本发明纠正几个观点并提出本发明的防治机理。
一、 认为近视眼是人类进化的结果, 难已克服甚至认为近视眼决定 于遗传基因, 这是十分错误的, 简单说达尔文的进化论说明, 一种进化 结果需要漫长的时间, 而现在大量多发的近视, 只发生于第二代第三代 人身上, 没有渐进的过程, 所以说近视眼的发生不决定于人类的进化和 遗传, 而决定于现代人用眼的习惯和视觉环境, 我们的上辈较少读写, 看近和生活在广阔的环境中, 他们都是正视眼或轻度远视眼, 而现代人 文明飞速发展带来了大量视近事物和缺少广阔的视野, 造成了远视力发 育不良, 近视力过度发展, 于是一两代人发生了近视眼, 所以要防治近 视眼是完全可能的, 只要用避免长时间看近而创造看远的环境和条件的 方法即可做到。
本发明把看近的工作变为看远的工作, 故必然产生相反的结果, 在 理论上是可以防治近视眼的。
二、 认为人眼的自然发育过程是一个从远视到正视再到近视的必然 过程, 一旦近视了即不可逆转, 这个观点是片面的, 婴儿是天生的远视 眼, 在其发育过程中由于视觉的需要不断的看近调节, 这种外界条件促 使其向正视眼发展, 如果过早的发展到正视眼, 而继续加重看近的视觉 刺激和负担则其发展成为近视眼, 所以近视化的过程是决定于视觉环境 的, 由于看近造成眼看近的调节和发育, 造成了近视眼, 反之一旦近视 了, 如果多练看远, 在发育期内眼还要向正视眼发展, 因为看远眼要发 生看远的调节叫反向调节。 则发育将造成远视眼的可能性, 解剖学显示 人眼内部具有看近的调节肌和看远的调节肌(如瞳孔开大肌), 故证明看 远要反向调节, 并向远视发生变化。
三、 用药物或手术的方法来防治近视眼, 药物可分为: 解痉类、 刺 激视神经兴奋类、 营养类药和调节控制眼生长速度的药物, 手术方法有 激光切削改变角膜屈光度的方法和眼球后巩膜加固等方法, 这些方法都 未考虑人眼长时间看近是导致近视眼的最关键原因这一因素, 所以都不 是防治近视眼的主要方法, 至于激光切削角膜是在矫正视力与防治近视 眼两者意义不同, 所以说防治近视眼应该是解决视觉环境, 改变近距离 用眼, 这才是防治近视眼的大方向。
四、 近视眼是用眼过多, 视疲劳所致, 消除疲劳可预防近视, 这个 观点也是片面的, 视疲劳是导致近视眼的原因是不准确的说法, 从人眼 结构分析, 眼能看清楚很大距离范围内的东西, 主要决定于其晶状体的 屈光调节范围, 对于成年人或正常的眼当眼不注视固定目标时 (如处在 空虚视野 empty-space或睡眠状态中 night-myopia) 晶状体的屈光度是它 的悬韧带和睫状肌调节力共同作用的平衡力下的屈光度, 此时人眼处于 "放松"状态, 调节力最小, 实验证明人眼的这种调节力最小的放松状 态的视力距离大约在 0.7米 -2米之间, 并非一般认为的无穷远处, 所以 人眼在此适宜的较近距离上是不易疲劳的, 当看较远和较近距离时间较 长时, 都容易发生视疲劳, 其中只有看近的视疲劳容易造成近视眼, 而 消除此种视疲劳可减轻近视眼的发展。
本发明设计了可调视距的装置, 当调到不同眼各自的适宜距离时, 眼不易疲劳, 故可减少近视眼的发生和发展, 而调到较远距离时, 眼处 于看远的反向调节状态, 即使产生一定疲劳到可以治疗近视。
本发明设计原理如下- 近视眼的发生和发展, 与长时间眼的调节、 集合、 近感知三方面因 素正相关, 所以要抓住这三方面原因, 通过改变用眼方式, 避免看近, 而多看远或者利用光学原理达到同样效果来防治近视眼, 而对人眼的视 觉生理规律分析可知, 人眼在自然看远时: 睫状肌看近的调节 accommodation 放松, 双眼的集合 convergence 减小, 绝对深径 absolutelldepth增加, 视觉景物变远, 这三方面的生理反应是协调一致 的, 任何一方面不协调, 都会引起视生理规律的不同程度的破坏而引起 不适。 本发明正是按照这一生理规律而设计的, 它一方面通过平面反射 镜二次反射延长光路, 使人感到被视物变远, 增加了绝对深径 (减少了 绝对视差) 减小或消除了近感知, 另一方面, 通过透镜部分利用透镜的 屈光度代替眼看近时调节的屈光度来减少或消除眼睫状肌的视近调节或 痉挛, 又通过平面镜、 透镜、 三棱镜改变双眼视线, 使双眼集合减小。 另外,当被视物的像通过平面镜变远后引起视角变小不易分辨(如字小), 对近视者会因感到模糊不易分辨, 利用透镜或透镜组给予放大视角或适 当矫正视力使被视物易于分辨 (如小字) 这样增加了长时间读写的适用 性。
所以本发明的平面镜与透镜、 三棱镜的组合是实现避免看近而多看 远综合效果最佳, 适用性最强的光学视计。
本发明具有以下积极效果: 视野 visual field广阔, 适用性强, 眼睛 不易疲劳, 读写自然, 能延长工作或学习时间, 能有效地较好地防治近 视, 并可针对具体人群或个体的不同近视程度提高防治效果, 同时视物 远度及视线角度可调, 使用方便灵活, 并可纠正坐姿, 防止颈椎病。 特 别适合青少年读写时使用。 以下结合实施例作详述, 但不作为对本发明的限定。 附图说明 图 1是本发明实施例 1的结构示意图。 , 图 2是图 1的右视图。
图 3是本发明实施例 2的结构示意图。
图 1、 图 2中, 1为支架, 2为架体的横杆上下、 旋转可调机构, 3 为一次平面反射镜的沿竖槽杆 5 的上下和旋转可调旋钮, 4为一次平面 反射镜, 6为额部支垫, 7为目视孔, 8为透镜或透镜组, 9为下巴支垫, 10为下巴支垫可调旋钮, 11 为二次平面反射镜, 12为二次平面反射镜 的旋转可调旋钮, S1为一次平面反射镜到被视物光路长, S2为一次平面 反射镜 4到二次平面反射镜 11的光路长, S3为透镜或透镜组到二次平 面反射镜 11的光路长。
图 3中, 13为架体, 一次平面反射镜 4、 二次平面反射镜 11均装在 遮光罩 14中, 透镜或透镜组 8、 额部支垫 6均装在遮光罩 14上, 15为 调整机构。 具体实施方式 参见图 1、 图 2, 将书本放在台面上, 根据人的高度通过可调机构 2 调整架体的上下高度和旋转角度, 选择总光路长 (S=S1+ S2+ S3) 大于 600mm (一般常取 500〜1000mm, 2000mm, 3000mm也可), 并通过旋 钮 3调整一次平面反射镜的上下高度和角度,通过旋钮 12调整二次平面 反射镜的角度, 根据近视屈光度八、 散焦屈光度 B用公式 Φ=1 ϋ+Α+Β 选择透镜或透镜组屈光度 Φ, 当透镜为左右一对时, 则两透镜的中心距 具有可左右调余地,以适应不同人的瞳距要求和形成球面透镜偏心效果, 达到附加基底向内三棱镜的作用, 来改变双眼视线的集合角度。 调整下 巴支垫 10在合适位置, 即可进行读写, 同时防治近视, 调整二次平面反 射镜, 使其完全遮盖人眼通过目视孔向外看的视线时, 人眼看到一个视 野, 否则, 眼可看到两个视野, 一个较远一个较近, 利于人眼交替注视 使用。
参见图 3, 调整遮光罩 14为合适高度, 一次平面反射镜、 二次平面 反射镜为固定式,透镜或透镜组屈光度 Φ可为 2D〜0.75D,此时可使 Φ, 正视者或近视眼者配戴自己的眼镜即可进行使用防治。
本发明的效果是明显的, 以下是本发明的部分使用实例。
实验结果如下:
选取使用本发明装置读写的学生(6-14岁) 100人, 使用时间半年, 方法为每次写作业看书都用, 时间不限, 半年后测试 (见表 1和表 2) 提高到 1.0 以上者为恢复 (治愈) 提高三行为有效, 统计效果为: 有效 率 87%, 恢复率 (治愈率) 39%。
用标准远视力表测远视力, 举例如下表 (1 )
提高 提高 用 前 用 后 行数 用 前 用 后 行数 序 姓 序 姓
号 名 右 左 右 左 右 左 号 名 右 左 右 左 右 左 眼 .眼 眼 眼 眼 眼 眼 眼 眼 眼 眼 眼
1 杨 XX 0.3 0.4 0.8 1.5 4 6 26 周 XX 0.15 0.15 0.8 0.8 5 5
2 邢 XX 0.3 0.4 0.6 0.6 3 2 27 崔 XX 0.2 0.25 0.8 0.6 6 5
3 张 XX 0.5 1.0 1.0 2.0 3 2 28 高 XX 0.15 0.15 0.4 0.5 4 5
4 李 XX 0.6 0.8 2.0 2.0 4 3 29 乔 XX 0.6 0.6 1.2 1.2 3 3
5 李 XX 0.4 0.4 1.2 1.0 4 3 30 赵 XX 0.2 0.2 1.0 1.0 7 7
6 王 XX 0.3 0.3 0.8 0.8 3 3 31 苏 XX 0.5 0.25 1.0 0.8 3 5
7 刘 XX 0.3 0.4 0.6 0.8 3 3 32 王 XX 0.12 0.12 0.5 0.4 6 5
8 孙 XX 0.25 0.25 2.0 2.0 9 9 33 张 XX 0.25 0.25 1.0 1.0 6 6
9 孙 XX 0.6 0.6 1.0 1.5 2 5 34 杨 XX 0.15 0.15 0.5 0.5 5 5
10 刘 XX 0.3 0.4 0.6 0.6 3 2 35 蒋 XX 0.15 0.05 0.6 0.6 6 6
11 张 XX 0.3 0.4 2.0 2.0 8 7 36 李 XX 0.2 0.2 1.2 1.0 9 8
12 任 XX 0.4 0.8 1.0 1.2 4 3 37 陈 XX 1.0 0.25 1.2 0.5 1 3
13 徐 X 0.5 0.4 1.2 1.2 4 5 38 魏 XX 0.2 0.15 0.4 0.4 3 4
14 杨 X 0.1 0.5 0.25 1.0 4 3 39 王 XX 0.6 0.6 0.8 1.0 1 2
15 陈 XX 0.15 0.6 0.4 1.2 4 3 40 王 XX 0.1 0.12 0.6 0.6 8 7
16 王 XX 0.3 0.3 0.8 1.8 4 4 41 郝 XX 0.5 0.6 0.6 1.0 1 2
17 韩 XX 0.15 0.15 0.6 0.6 6 6 42 李 XX 0.3 0.3 0.8 0.8 4 4
18 叶 XX 0.2 0.2 0.6 0.6 5 5 43 王 XX 0.6 0.8 1.5 1.0 4 3
19 余 XX 0.25 0.25 0.6 0.8 4 5 44 李 XX 0.6 0.5 1.0 0.8 2 2
20 李 XX 0.12 0.12 0.8 0.8 8 8 45 王 XX 0.6 0.6 1.2 1.2 3 3
21 张 XX 0.12 0.12 0.8 0.8 δ 8 46 张 XX 0.3 0.4 1.6 0.6 3 2
22 ' 赵 XX 0.15 0.3 0.6 0.6 6 3 47 刘 XX 0.15 0.5 1.0 1,2 8 3
23 张 XX 0.16 0.1 0.4 0.4 7 6 48 史 XX 0.3 0.5 0.8 1.0 4 3
24 王 X 0.15 0.25 0.6 1.0 6 2 49 张 XX 0.2 0.2 0.6 0.8 5 6
25 赵 XX 0.8 0.8 1.5 1.5 3 3 50 邵 XX 0.12 0.25 0.3 0.3 4 1 用 SJR-188 电脑验光仪测试上述 100 人结果, 平均降低屈光度一.85D, 举例如下表 (2): 用前 (屈光度) 用后 (屈光度) 降低 (屈光度) 姓名
右眼 左眼 右眼 左眼 右眼 左眼 李 XX -3.27 -5.53 -2.12 -4.00 -1.25 -1.53 刘 XX -2.25 -3.25 -2.00 -1.00 -0.25 -1.25 尹 XX -5.50 -5.75 -2.25 -1.62 -3.25 -4.13 赵 XX -2.50 -2.50 -0.37 -0.12 -2.13 -2.38 孙 XX -2.25 -2.00 -1.25 -1.00 -1.00 -1.00 刘 XX -4.00 -4.50 -1.12 -0.62 -2.88 -3.88
■BS ,'
贝 X -5.65 -5.52 -4.50 -3.62 -1.15 -1.90 王 XX -1.54 -1.85 -0.75 -1.25 -0.79 -0.60

Claims

权 利 要 求 书
1、 一种读写近视防治仪, 包括支架(1 )、 一次平面反射镜 (4)、 二 次平面反射镜 (11 )及目视孔 (7), 其特征在于一次平面反射镜 (4)直 接反射视野物体光线, 总光路长 (S-S1+ S2+ S3 ) 大于等于 300mm, 小 于 5000mm。
2、根据权利要求 1所述的读写近视防治仪, 其特征在于具有 1个或 2个视野。
3、根据权利要求 2所述的读写近视防治仪, 其特征在于设有一个遮 光罩 (14), 所述的一次平面反射镜 (4) 和二次平面反射镜 (11 ) 均装 在该遮光罩 (14) 中。
4、 根据权利要求 1、 2或 3所述的读写近视防治仪, 其特征在于所 述的目视孔 (7) 处设有一个或一对透镜或透镜组 (8)。
5、根据权利要求 4所述的读写近视防治仪, 其特征在于所述的透镜 或透镜组 (8) 的屈光度 Φ按下述公式配制, Φ=1 ϋ+Α+Β, 其中 U为预 设总光路长 (S), A为近视屈光度, B为散焦屈光度, B取值 0-1.5D。
6、根据权利要求 5所述的一种读写近视防治仪, 其特征在于所述的 透镜或透镜组 (8) 的屈光度 Φ为 2D〜0.75D, U为 0.5π!〜 1.3m。
7、根据权利要求 5所述的一种读写近视防治仪, 其特征在于所述的 支架 (1 ) 上设有遮光罩 (14) 的上下和 /或旋转可调机构 (15 )。
8、根据权利要求 7所述的一种读写近视防治仪, 其特征在于设有一 次平面反射镜(4)的上下和 /或旋转可调机构(3 ),二次平面反射镜(11 ) 的旋转可调机构 (12)。
9、根据权利要求 8所述的一种读写近视防治仪, 其特征在于设有额 部支垫 (6) 和 /或下巴支垫 (9)。
10、 根据权利要求 9所述的一种读写近视防治仪, 其特征在于所述 的下巴支垫 (9) 设有位置可调机构 (10)。
PCT/CN2006/003323 2005-12-31 2006-12-07 Instrument pour la lecture et l'ecriture destine a prevenir et traiter la myopie WO2007076680A1 (fr)

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CN106154575A (zh) * 2016-08-30 2016-11-23 戴明华 一种抑制近视发生发展的眼镜片、眼镜及读写仪
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