Tuesday, December 08, 2009

最伤眼睛的看电视方式

4种最伤眼睛的看电视方式

1) 长时间看电视
看电视现在已成为许多人生活中必不可少的内容,有的人一看就是几个小时,特别是老年人无事可做,又不爱活动,更爱坐在电视机前消磨时间。结果弄得头晕脑胀,疲乏无力,医学界称为“电视病”。

看电视过久对眼睛也很不利,有人曾做过实验,一个连续看4至5小时电视,视力会暂时减退30%,过一段时间后才能恢复。如果连续长时间看电视,视力得不到恢复,便形成长期性的视力减退。尤其是看彩电,会因大量消耗视网膜上的圆柱细胞中视紫红质,视力衰退更快。

2) 关灯看电视
人们每天都离不开电视与电脑,而电视电脑都需要眼睛高度集中,时间一长,不少人就出现了不同程度的眼疲劳症状,尤其是整天与电脑打交道的白领人群中,90%以上都有不同程度的眼疲劳症状。

有一些人平时在看电视或用电脑时喜欢把旁边的灯都关了,只剩下屏幕上发出的亮光。眼科专家指出,这样是不对的,这时光线对比度会特别高,眼睛特别容易感到疲劳,时间长了,就会影响视力甚至损害眼睛。

3) 看电视频繁换台
人们都知道,长时间看电视会使眼睛疲劳,影响视力。但是,据研究人员一项最新的调查显示,与长时间看电视相比,频繁换台对眼睛的伤害更大。看电视换台的瞬间,是对眼睛刺激最大的时候,因为多数电视在换台的一瞬间,会出现黑屏和突然变亮的情况,此时光线骤变,会对眼睛造成一定的刺激,换台过于频繁,更容易导致眼睛疲劳。

研究人员指出,看电视换台之前,最好先闭上眼睛,或者在换台后多眨几下眼,因为这样可刺激眼睛泪腺的分泌或锻炼眼睛周围的肌肉,避免眼睛疲劳。另外,看电视超过半个小时,最好望望远处,让眼睛休息一下。

4) 车上看电视
现在很多车上都有电视,便于游客在乘车过程中打发无聊的时间,电视一般都安装在车内前方,汽车在行驶过程中会播放一些电视节目或录像。按理说,这是优质服务的表现。然而,当人们长达数小时看电视,很多人就会出现双眼发胀、干涩,甚至还会出现头昏、恶心、呕吐等不良症状。

为了保护眼睛,建议平时可多吃些蔬菜和水果,如胡萝卜、豆芽、橘子、红枣等,对保护眼睛有一定作用。

希望大家眼睛亮亮,拥有美丽健康的心灵之窗!
:)


7 comments:

Anonymous said...

Hi Violet,
My mum watch tv for at least 5hrs continuously everyday. After I read this, better tell her to take a break every 2hrs. Take care of the eyes is very important.
Lynn

Anonymous said...

Hi Fenying,

Now I realise switching channels too often is not good for the eyes. I've the habit to do this. Must try to avoid doing this again.

Michelle

Anonymous said...

Hi Fenying,

Sometimes I also don't on the lights while watching tv in my room. It's so harmful to the eyes. Next time have to remember to on the lights. : )

Carol

Anonymous said...

Hi Fenying and Dr Chong,
May I check with you if we use preseed lubricant, is it giving us higher chance to conceive ? I will feel wet myself but i understand that it may be acidic and harmful to the sperm... so is it better if we add on with preseed?
Also, if every day we have sex, will the sperm not fully developed and result in not easy to conceive?

Thank you... pls help me... very desperate now..

Rgds,
Desperate gal

Anonymous said...

Hi Dr Chong,
I have a miscarriage two months ago.. 2nd of Dec already come the 2nd menses and very strange is it is heavy for first few days in the day time and stop totally at night...Then on and off still hv flow for these few days but not so heavy now... it has already one week pass, and still hv menses. May I know what happen? For my first menses, it also last for around 10days but at least it is only heavey for first few days and stop totally.. I thought 2nd menses will be back to normal but why still the menses last so long? is this normal for me? Before miscarriage, my menses only last for 7 days. Please help me please.... what happen to my body internally?

Thank you very very much.

Rgds,
Joanne

Anonymous said...

Hi Violet,

Can U help to ask the counsellor abt my case :

My hb left home after owing bank $. He has been away for 2 years. I told both my kids (9 years and 7 years) abt the truth. But when my relatives asked abt my hb, I lied that he is away overseas working as I do not want my relatives to know.

But, my 9 years old kept asking me why I dun tell my relatives the truth? How shld I do?

Will my lying set him to be dishonest, is ok?

What is your advice ? Thanks Mdm Tan

Anonymous said...

Hi Violet,

can u repeat the website address of the organisation? Window topics.

Thanks