e******o
发帖数: 53 | 1 领导被诊断出degenerative progressive myopia，医生只给了电话说视网膜脱落的话
可以打电话给医生做手术。我们一头雾水，请问progressive myopia，大概多久才会导
致视网膜脱落？平时工作生活需要注意一些什么？可否吃一些什么药物控制病情？最坏
的情况和解决办法？
谢谢 |
|
u*****a
发帖数: 6276 | 2 Scientists believe they may be able to discover why children who spend much
of their time indoors rather than playing outside are more likely to develop
short-sightedness following a breakthrough study into the genetics of
myopia.
More than two dozen genes have been linked to an increased risk of
developing myopia, a finding that may finally allow researchers to
understand why children today are more likely to become short-sighted than
children in the past.
Myopia now affects about one in three ... 阅读全帖 |
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i*******t
发帖数: 499 | 3 some interesting information from http://en.wikipedia.org/wiki/Myopia
"The National Institutes of Health says there is no known way of preventing
myopia, and the use of glasses or contact lenses does not affect its
progression."
"China's myopia rate is 31%: 400 million of its 1.3 billion people are
myopic. The prevalence of myopia in high school in China is 77.3%, and in
college is more than 80%."
" in the United States... For myopia, Asians had the highest prevalence (18.
5%), followed by Hispa... 阅读全帖 |
|
h*****m
发帖数: 1034 | 4 先赞一下理性探讨的态度。
根据近些年的研究结果，光线是不仅是一个重要因素，而且是一个关键因素。
Nature去年有一篇介绍文章：
http://www.nature.com/news/the-myopia-boom-1.17120
大意就是看书远近什么的没那么重要，关键是“室外”活动接触明亮光线的时间。不管
是室外运动，野餐还是读书，都防近视。在室内时间，哪怕是运动，都没用。尽管还有
争议，但动物实验也支持光线的理论。
文章后面给出的解释是，明亮光线会刺激视网膜释放多巴胺，后者可以防止眼球拉长。
其中的一段：
Researchers have consistently documented a strong association between
measures of education and the prevalence of myopia. In the 1990s, for
example, they found that teenage boys in Israel who attended schools known
as Yeshivas (where they spe... 阅读全帖 |
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s***n
发帖数: 1280 | 5 这个不太可能是根本原因，最多是个间接相关原因。上面已经有网友举了反例。
下面这篇2014年的文章说睡眠时间和近视相关，但没把它列入主要risk factors。
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=4169
“Conclusion: It was not surprising, as proved by other studies, that
parental myopia, reading or writing distances, time spent on studying or
other activities by using eyes were dominant risk factors associated with
juvenile myopia. Our findings indicated that hours of sleeping were also
closely related to juvenile myopia, in which the underlying mechan... 阅读全帖 |
|
c******r
发帖数: 3778 | 6 OVERNIGHT CORNEAL RESHAPING (OCR) — Overnight corneal reshaping (OCR) is
the process of wearing a specially designed, rigid gas-permeable (RGP)
contact lens while asleep to temporarily effect a change in the corneal
curvature resulting in clear vision during waking hours without correction.
This technique is also referred to as:
●Corneal refractive therapy (CRT)
●Overnight corneal reshaping (OCR)
●Vision shaping treatment (VST)
●Orthokeratology (Ortho-K)
The process — After wearing OCR lenses, t... 阅读全帖 |
|
s***n
发帖数: 1280 | 7 这个应该还没有定论。
下面这篇2014年的文章说睡眠时间和近视相关，但没把它列入主要risk factors。
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=4169
“Conclusion: It was not surprising, as proved by other studies, that
parental myopia, reading or writing distances, time spent on studying or
other activities by using eyes were dominant risk factors associated with
juvenile myopia. Our findings indicated that hours of sleeping were also
closely related to juvenile myopia, in which the underlying mechanism should
be explored in... 阅读全帖 |
|
s****e
发帖数: 137 | 8 综述：
新的PUSD学区委员上台之后，总体来说还是比较积极主动与家长进行交流的。在1月5日
举行了一次学区特殊会议，征求公众意见，在会议上SDAAFE继续在学区会议上发言，要
求学区成立一个专门的调查委员会，专门调查iPAD教学的好处与坏处，并提供家长选择
权：可以不让孩子参与iPAD教学。这也将是SDAAFE在该项目的主要目标。
PUSD学区委员普遍接纳了这个建议，并在1月20日的学区会议上，把成立这样的一个调
查委员会作为一个专门的议题来讨论，但是遭到了现任superintendent Dr. Collins的
强烈反对，理由是学区委员没有成立这样的委员会的权利。
因此，学区在1月26日再次召开特殊的学区会议，从policy开始讨论起，即先讨论应该
怎样成立这样的委员会。等把这一步流程理顺之后，再决定成立什么样的委员会。
由于Dr. Collins的杯葛，并且他在2014年初的时候与当时的学区委员一起签署了三年
连任的合同，预计在2016年之前，这个问题仍将是一场艰苦的拉锯战。
本周六晚的家长聚会及孩子眼睛保健的提醒：
本周六晚三校(Park Village, Deer Canyo... 阅读全帖 |
|
b****y
发帖数: 103 | 9 by the way, how old is your kid? if he/she is very young say 6-7 years old,
watch out! The kid is at high risk for high myopia at age 18 ( say -12D or
more!). So you really need to let your kid play outdoors in day time for 2
hours a day everyday! just wear sun glasses and sun screen when play out
doors! Remember reserach shows that indoor sports do NOT count. so swimming
, hockey, skating ( in door) have no use to prevent myopia.
high myopia is always not a good thing, it can easily lead to r... 阅读全帖 |
|
a*i
发帖数: 1652 | 10 I just saw a journal paper titled "Posterior chamber collagen copolymer
phakic intraocular lenses to correct myopia: Five-year follow-up" ( Journal
of Cataract & Refractive Surgery Volume 37, Issue 5, May 2011, Pages 873-880
).
At present, the Visian Implantable Collamer Lens pIOL (Staar Surgical Co.)
is the only posterior chamber pIOL approved by the United States Food and
Drug Administration (FDA) for the treatment of moderate to severe myopia.
This pIOL is of a foldable collagen copolymer mat... 阅读全帖 |
|
A*****n
发帖数: 252 | 11 I heard there are difference in high myopia. For the low myopia, like -2.50
~ -3.25 or some others, they are
same. |
|
f******I
发帖数: 769 | 12 thanks for sharing,
i'd say your retinal detachment was because of myopia, which is a
significant risk factor for retinal detachment in non-traumatic cases, my
opthalmologist had told me that, and exlpained the symptoms and such since i
have quite significant myopia, which is also genetic so i guess your doctor
wasn't wrong either,
it's a scary experience, but sometimes it might not be such a bad thing if
you don't see everything too clearly, like when i look into mirro myself and
hey i'm not th |
|
y***8
发帖数: 134 | 13 我们家8岁儿子两周前学校发现视力是20/40和20/60.昨天看医生测出是20/40和20/40.
要配-0.75和-1的眼镜。
他今年夏天在中国测出是0.6 和0.8. 每天点阿托品眼药水（1% Atropine）两周后再测
是1.0和1.2. 中国医生说是假性近视。没想到最近视力还是下降了。
美国医生不愿意开Atropine，说近视就是近视。Everything is related to his DNA.
He has to wear glasses right now so that his myopia won't progress. 美国医生
还说 she does not think any medicine can cure myopia. She cannot prescribe
atropine because its side effects have not been fully studied.
我们相信他很有可能还是假性近视，但不知道该怎么办。请问大家有没有好的建议。
谢谢！ |
|
t*********l
发帖数: 844 | 14 本文由turbopascal原创，欢迎转帖。虽然文字是原创，但理论来自《近视眼之迷：近
视的真相及预防》[1]。
1. 近视是怎么形成的？
人体最牛的地方是后天的可塑性。既可以训练成占旭刚那样的力量型肌肉；也可以训练
成张继科、林丹那样的灵敏速度型；甚至骨头也可以象八极大师李书文那样练得骨硬如
铁。这些可塑性的结果是让人对最经常做的动作能更加容易地做到。眼睛也不例外。
首先让我们定义眼睛的远点和近点。远点是眼睛最放松时能看清的最远距离。近点是眼
睛最紧张时能看清楚的最近距离。正常人的远点是无穷远，所以除非物体太小，其在视
网膜上成的像小于一个感光细胞，都是能看清的。
当一个人长期看近处的东西时（学生读书、做作业、看电脑等），眼睛晶状体周围的平
滑肌必须长期保持紧张，最后造成痉挛而无法放松成原来状态，这就是假性近视，经过
休息后会恢复。如果人必须继续长期看近处的东西，眼睛的可塑性就开始起作用：眼球
长得更长，以便使平滑肌不需要用力把晶状体变太鼓的情况下仍然能够成像在视网膜上
。眼球一旦变长，近视就变成了永久近视。如果一个人长期在40厘米处看书，最后他的
远点将会变成40厘米。这时，让他看... 阅读全帖 |
|
u*****a
发帖数: 6276 | 15 没治。天生的。
- - - -
Researchers found that Asian-American children were more likely to be myopic
, or nearsighted, than their Hispanic, African-American and white peers,
while white children were more likely to have hyperopia, or farsightedness,
than were children from the other ethnic groups. Astigmatism -- an irregular
curvature of the cornea that causes blurry vision -- was most prevalent
among Hispanic children.
Nearly one out of five Asian-American children in the study was nearsighted,
and one... 阅读全帖 |
|
u*****a
发帖数: 6276 | 16 没治。天生的。
- - - -
Researchers found that Asian-American children were more likely to be myopic
, or nearsighted, than their Hispanic, African-American and white peers,
while white children were more likely to have hyperopia, or farsightedness,
than were children from the other ethnic groups. Astigmatism -- an irregular
curvature of the cornea that causes blurry vision -- was most prevalent
among Hispanic children.
Nearly one out of five Asian-American children in the study was nearsighted,
and one... 阅读全帖 |
|
y***8
发帖数: 134 | 17 我们家8岁儿子两周前学校发现视力是20/40和20/60.昨天看医生测出是20/40和20/40.
要配-0.75和-1的眼镜。
他今年夏天在中国测出是0.6 和0.8. 每天点阿托品眼药水（1% Atropine）两周后再测
是1.0和1.2. 中国医生说是假性近视。没想到最近视力还是下降了。
美国医生不愿意开Atropine，说近视就是近视。Everything is related to his DNA.
He has to wear glasses right now so that his myopia won't progress. 美国医生
还说 she does not think any medicine can cure myopia. She cannot prescribe
atropine because its side effects have not been fully studied.
我们相信他很有可能还是假性近视，但不知道该怎么办。请问大家有没有好的建议。
谢谢！ |
|
h*****m
发帖数: 1034 | 18 明亮的光线照到视网膜上刺激视网膜产生多巴胺。。。不是照皮肤啊。
当然这话不能让你婆婆知道，不然就不是脱皮这么简单了。。
小孩子多在外面玩玩挺好，但也不能总在阳光下暴晒。树阴下的亮度就足够好了。
Based on epidemiological studies, Ian Morgan, a myopia researcher at the
Australian National University in Canberra, estimates that children need to
spend around three hours per day under light levels of at least 10,000 lux
to be protected against myopia. This is about the level experienced by
someone under a shady tree, wearing sunglasses, on a bright summer day. (An
overcast day can provide less th... 阅读全帖 |
|
o***m
发帖数: 6 | 19 请直接联系PI.
A Postdoctoral Position is open in the laboratory of Professor Christine
Wildsoet OD, PhD, one of 5 research labs in the Center for Eye Disease and
Development at the University of California - Berkeley (UCB). The main
focus of her research is myopia (short-sightedness) and more generally,
emmetropization and eye growth regulation, with an over-riding goal of
finding the key to preventing myopia in humans. On-going projects range from
investigations of optical, pharmacological and tiss |
|
k***m
发帖数: 30 | 20 Wearing glasses is a correction, not a treatment.
Your doctor is right, for near-sighted kid, no need for reading, wear
glasses for distance. I started my daughter on glasses when she was 7, and
her glasses is -1.00.
估计戴了这辈子都摘不了了-- A common mis-understanding is wearing glasses
makes your myopia worse. The myopia getting worse or not has nothing to do
with you wear glasses or not. |
|
|
|
t****x
发帖数: 9441 | 23 Go to myopia.org to do some research. |
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k**********4
发帖数: 16092 | 24 最常见的两种保险就是 HMO 和 PPO；前者必须先选择一位主要保健医师（Primary
Care Physician, PCP），若要看专科医师必须由 PCP 推荐转诊(referral)；而 PPO
计划则不需透过家庭医师，可以直接预约专科医生。
比较项目 按服务收费(FFS) 健康维护组织(HMO) 优选医疗机构(PPO) 指
定医疗服务(EPO) 定点服务组织(POS)
医院选择自由度 可以选择任何医院 只能在特定的医疗服务网内就医 比HMO
高 只能在特定的医疗服务网内就医 有特定的医疗服务网，网外就医需承担较高
的自付款
医师选择自由度 可以选任何医师 PCP或由其转诊的专科医师 不需转诊即可
看专科医生 不需转诊即可看专科医生 PCP或由其转诊的专科医师；网络外专科
医生处就诊需承担较高自付额
自费比例 通常为20%，与其他相似 较低 网络内较低 较低 网络内较低
保险费用 较为昂贵 较为便宜 比HMO高 较为便宜 较为便宜... 阅读全帖 |
|
l****z
发帖数: 29846 | 25 By Roger D. Luchs
A quotation in the September 19, 1926 edition of the Chicago Tribune
included the following observation on the electorate of the day:
No one in this world, so far as I know - and I have searched the records for
years, and employed agents to help me - has ever lost money by
underestimating the intelligence of the great masses of the plain people.
Nor has anyone ever lost public office thereby.
Its author was H.L. Mencken, a noted journalist. Could it be that President
Obama, a... 阅读全帖 |
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l****z
发帖数: 29846 | 26 Back in the day, when I was a newspaper columnist in Denver, representatives
of the local chapter of the Anti-Defamation League paid a visit. Over
coffee, they told the opinion editor and me that they had a program, “A
World of Difference,” that “celebrates America’s diversity.” They asked
for our editorial support. The editor and I had the same reaction: Would it
not be better to celebrate all the things we have in common, all the things
that unite Americans of whatever ethnic or religious back... 阅读全帖 |
|
l****z
发帖数: 29846 | 27 这个佬黑女的也就是靠AA上位的.
In a 1986 book by U.S. Ambassador to the United Nations Susan Rice, the
future diplomat argued for the aggressive inclusion of a black history
curriculum in American schools, claiming that its omission had “crippling
effects” by “providing a child with no more than … a white interpretation
of reality.”
The 86-page book, “A History Deferred,” served as a guide for secondary
and elementary school teachers wanting to teach “Black Studies,” and was
published by the Black Student Fun... 阅读全帖 |
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c**y
发帖数: 169 | 28 时长先不说，个人觉得所谓agile模式带来的micro-management和over-communication
是伤害creativity的。这种比较myopia的模式适合可预测性非常强的项目或阶段。
研究而言，我觉得更好的模式是给学生方向性的指引，还有合适的空间去explore。 |
|
d********w
发帖数: 363 | 29 告诉元音字母map到数字 (a=1, e=5, i=9, o=15, u=21, y=25)，y特殊些，当 前面的
字母是不是元音才计算值。如果是连续的元音使用乘法，否则把几段值相加。
给字符串计算它代表的值，
Example:
"Queue" = 21 * 5 * 21 * 5 = 11025.
"myopia" = 25 * 15 + 9 * 1 = 384.
“I'm Feeling Yucky” split into "I", "ee", "i", "u", and "y" ，first 'Y' is
preceded by a space,
the value is 9 + 5 * 5 + 9 + 21 + 25 = 89.
"gayyou" has a score of 1 + 25 * 15 * 21 = 7876, since the first y makes
the second y a vowel. |
|
a**c
发帖数: 52 | 30 来自主题: JobHunting版 - G家电面题 Q. Find a vowel product sum of an ASCII string.
> There are are 26 English upper and lower-case letters. Consider the
> encoding where vowels are mapped to numbers as follows: (a=1, e=5,
> i=9, o=15, u=21, y=25 or 0). A vowel sequence is a maximal substring
> of consecutive vowels. A vowel product is the product of the vowel
> encoding of all vowels in a vowel sequence. The vowel product sum
> is the sum of the vowel product of all vowel sequences in the
> string.
> A letter in [AEIOUaeiou] is ... 阅读全帖 |
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t****a
发帖数: 1212 | 31 来自主题: JobHunting版 - G家电面题 用函数式编程写了一个。要20分钟内一次写对做不到，楼主挺厉害的。
(defn fold [vowel ch]
(let [alphabet (set (map char (range 97 123)))]
(when (contains? alphabet ch)
(case ch
\a 1
\e 5
\i 9
\o 15
\u 21
\y (if (and (not (nil? vowel)) (zero? vowel))
25
0)
0))))
(defn vowel-seq [s]
(let [sl (vec (clojure.string/lower-case s))]
(remove nil? (rest (reductions fold (cons 1 sl))))))
(defn vowel-prod-sum [s]
(let [p (partition-by #(> %... 阅读全帖 |
|
J**9
发帖数: 835 | 32 来自主题: JobHunting版 - G家电面题 This is another question that seems easy but hard to code precisely.
Here's my version in C:
///1) Convert the string into all lower cases either in place or into
another buffer;
///2) First pass to check which ones are vowels;
///3) Second pass to sum up the products.
///4) Space O(n); Time O(n)
/** convert a string to lowercase in place */
char* hkStringTolower(char *str)
{
if(!str) return NULL;
char *s=str;
while(*s)
{
*s = tolower(*s);
s++;
}
return st... 阅读全帖 |
|
a********e
发帖数: 3771 | 33 it is not serious at all.
in Chinese it is called jian3 ban3 xian4 yan2. there are 2 types, one is
anterior, mai4 li4 zhong3, and the other is posterior, xian4 li4 zhong3.
antibiotics helps,but not effective. you can re4 fu1, to reduce the pain and
swelling.
yet, if you suffer from it very often, it is probably a sign for eye fatigue
and progressive myopia. |
|
f******I
发帖数: 769 | 34
co-worker said there was a study in isreal that said people with myopia and
are left handed are genius, so i'm not too terribly upset with it right now,
i guess till my retina fell off then i'll curse my genes, |
|
g***r
发帖数: 285 | 35
if you have very severe myopia then you'd be at risk for retinal detachment,
for which my opthalmologist told me that i would see lots of floaters like
rain falling down then it would be an emergency,
if it's just a single floater, i think the most common cause is idiopathic
vitreous floater and not whole lot to be done about it,
but i'm not an ophthalmologist so don't quote me on this, |
|
|
l*h
发帖数: 4124 | 37 has the kid been diagnosed with myopia? amblyopia is more common at this age. |
|
L******i
发帖数: 124 | 38 小儿弱视其实发病率挺高的，一般占人群的3-4%。 之前有个帖子提到，国内现在
的诊断标准不统一，不过在美国这边是有一套完整的诊断标准的。 这里简单普及一下。
首先要诊断弱视，必须要做排除法，也就是要排除一切器质性病变，包括一切视网
膜、视神经及视觉中枢的问题，然后才能考虑弱视。
要诊断弱视还必须要做包容法，也就是说必须要找到一个可以导致弱视的因素 （
amblyogenic factor）。 这个导致弱视的因素包括以下的一点或多点：1）斜视（
strabismus）； 2）眼睛度数过高 (high refractive error)； 3）阻碍性 （form
deprivation）。 第三种很少见，一般是由于先天性白内障、角膜大伤痕 （large
corneal scar）或先天性睑下垂（ptosis）等引起的， 就不多说了。详细说说1和2。
斜视有两个高发时段，一是6-9个月 （infantile），一是2-4岁 （childhood）。
所以建议在这两个时段带孩子做一下眼睛全面检查，这不是一般的小儿科医生做的。
不过诊断主要还是靠父母平时的仔细观察... 阅读全帖 |
|
m***y
发帖数: 14763 | 39 Nod, nobody could even notice it if she doesn't mention it, right?
On the other hand, myopia is so obvious but when we Chinese parents found
their kids got that, they handle it pretty well (well, I never seen or heard
anybody crying on that.) Really weird, huh? |
|
c*****t
发帖数: 625 | 40 My experience was exactly like your daughter, what you said made total sense
.
My mom found out my eye problem when I was five, when everything was not too
late. then I wore a pair of glasses and corrected lazy eye by a small
machine. This little machine had stripped patten at the bottom but some
simple picture that required you to copy on top. when the power is on, you
have to focus with the lazy eye to copy the picture with the spinning
stripped pattern, that was a little help but it's hard to... 阅读全帖 |
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B******1
发帖数: 9094 | 42 Sorry to play the devil's advocate. But Asians are genetic prone to have
nearsightedness, or myopia, as proven by scholarly studies. Compounded by
the fact that most first generation Chinese Americans are nearsighted
themselves, their children would, more often than not, wear glasses once
reaching the teenage years. |
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u**l
发帖数: 1043 | 43 儿子（六岁）最近检查出一点儿近视加散光（50/50）。我很沮丧，觉得是最近看ipad
太多了，虽然医生安慰我说最大的原因是遗传，可是我不这么认为：中国和新加坡现在
80%的小孩都近视，他们的爷爷奶奶爸爸妈妈不可能也是那么多近视，还是眼睛肌肉太
疲劳了。
一个朋友说她6岁的时候也检查出近视(0.8),然后一年的时间没看电视，注意阅读灯光
和照明，一年后恢复到1.5，现在快40岁了，还是1.5.我和儿子说了，这一年不看ipad
和iphone了，电视每天不超过半小时。不知道还有什么办法可以帮他恢复视力，做眼保
健操？多吃鱼？
看到这个网站说带老花镜(reading glasses) 帮助治疗近视，有谁听说过吗？
http://www.preventmyopia.org/
多谢大家！
BTW, this is a useful webpage:
http://www.i-care.net/myopia.htm |
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d********t
发帖数: 837 | 46 Those are most likely astigmatism. Nearly three in 10 children (28.4%)
between the ages of five and 17 have astigmatism. With proper correction
lens they will outgrow it. Myopia usually develops later in school-aged
children. |
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y*f
发帖数: 2202 | 47 Myopia is a common ocular disorder, with an estimated
prevalence of 33% among adults in the United States |
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u*****a
发帖数: 6276 | 48 Currently, possibilities to reduce progression of myopia are very limited.
While one drug, called atropine, may reduce progression, it dilates the
pupil and causes problems with light sensitivity and difficulty with
reading.
少吃药，多户外运动是王道。 |
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b***d
发帖数: 2695 | 49 原文在这里
http://www.nature.com/news/the-myopia-boom-1.17120
摘要：
东亚青少年近视人数近年暴增：
60年前， 中国有10%-20%人近视，现在90%的青少年近视。
韩国的首尔19岁的小孩，96.5%近视。
即使在美国和欧洲，近视率也提高了一倍。
上世纪60年代，科研通过对同卵和异卵双胞胎的研究，发现近视是受DNA的影响，
所以说，近视是可以遗传的。但是这不是唯一的原因。后来又有说法是和看书/用
电脑时间长短有关，但是这个在2000年初期，某些研究表明这个小时数和近视的risk
没有太大correlation。
2007年OSU的Donald Mutti做了一个500多人（8，9岁小孩）的对比实验，发现室外
活动时间（time spent outdoors)的多少是严重影响视力的一个因子。 之后另一个
实验也证实了这个观点，在悉尼跟踪4000名小孩3年，发现室外时间少的孩子比室外
时间多的孩子更容易近视。而且在这项实验里，只要是在室外的时间，不管是在玩还
是在看书，还是在用computer，没有关系，只要你呆在室外，就会减少近视的ri... 阅读全帖 |
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t***h
发帖数: 2924 | 50 When you are reading book or computer outside, you will definitely be
distracted by something else and look away. When your eyes look to something
far, eye muscles get relaxed and rested.
When you are playing outside, your eyes are changing focus length all the
time, so eyes won't get fatigue.
But when you stay indoor, your attention is more focused on what your are
doing. Your eye muscle is always tense.
That's why increasing outdoor time can significantly reduce myopia. |
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