Name: 糖分對你的眼睛會造成什麼影響？ (This Is What Sugar Does to Your Eyes)
Uploaded: 2026-02-26T21:01:10.000Z
Duration: 5 min 55 s

轉承詞

Okay, so we need to talk about how sugar affects the eyes, because I see a lot of doctors here on the Internet talking about sugar and simple carbohydrates and how they not only contribute to obesity and diabetes, but

好的，所以我們要來談談糖分對眼睛的影響，因為我在網路上看到很多醫生在討論糖分和簡單碳水化合物，它們不只會造成肥胖和糖尿病，

程度副詞

also to inflammation throughout our bodies, high blood pressure, almost everything.

還會造成我們全身發炎、高血壓，幾乎是所有問題。

But I never see anybody talk about how sugar affects the eyes.

但我從來沒看到有人討論糖分對眼睛的影響。

If you feel like your vision is becoming blurry or maybe you're seeing new spots in your vision, then it may not just be your eyes changing, it could be your blood Sugar.

如果你覺得你的視力變得模糊，或者你看到新的飛蚊症，那可能不只是你的眼睛在變化，也可能是你的血糖在作怪。

I'm a board certified doctor of optometry.

And I'm sharing this information because I don't want anybody to lose their vision or go blind.

我分享這些資訊是因為我不希望任何人失去視力或失明。

Now, in the eye clinic, we see the effects of sugar on the eyes all the time, but

在眼科診所，我們經常看到糖分對眼睛的影響，但

usually in the extreme cases of things like diabetes.

通常是在糖尿病這種極端情況下。

But even for people who are not diabetic, we still often see these, especially for people who maybe don't know that they're diabetic or heading in that direction.

不過即使是沒有糖尿病的人，我們也常常看到這些情況，特別是那些可能不知道自己有糖尿病或正朝那個方向發展的人。

So the first way sugar can affect the eyes, it can cause your vision to go blurry.

所以糖分影響眼睛的第一種方式，就是會讓你的視力變得模糊。

Oftentimes, people will notice vision is harder to focus up close or sometimes even see in the distance.

很多人會發現近距離看東西比較吃力，有時候遠距離也一樣。

And this is because elevated blood sugar will cause the lens inside the eye to swell.

這是因為血糖升高會導致眼球內的晶狀體腫脹。

And with that swelling, you often get a prescription change.

隨著腫脹，你通常會需要更換處方。

所以人們會覺得視力好像不太對勁。

They'll come in because they think their glasses are wrong, but

他們會來看診，以為是眼鏡的問題，但

in reality, they just need to have their blood sugar come down to normal, which sometimes takes up to about three months or so.

實際上，他們只需要讓血糖恢復正常，這有時候需要大約三個月的時間。

Number two is that sugar can cause cataracts for the same reason of that lens swelling inside of the eye.

第二種是糖分會導致白內障，原因和眼球內晶狀體腫脹一樣。

When the lens swells, the lens proteins change, and you can develop a cataract much faster.

當晶狀體腫脹時，晶狀體蛋白質會改變，你可能會更快地發展出白內障。

And unfortunately, cataracts not only makes your vision blurry, but it decreases contrast.

而不幸的是，白內障不僅會讓你的視力模糊，還會降低對比度。

It makes it difficult to see at nighttime because there's often a lot of glare.

這會讓你在晚上很難看東西，因為常常會有很多眩光。

Now, the next few examples I'm going to share all stem from bleeding that occurs inside of the eye, something that we call retinopathy, which occurs because of fine blood vessels in the back of the eye get damaged with elevated blood sugar, and

接下來我要分享的幾個例子，都源於眼球內出血，也就是所謂的視網膜病變，這是因為眼底的細小血管因為血糖升高而受損，

So, so number three is when somebody's central vision is blurry or becomes distorted.

第三種情況是當一個人的中央視力變得模糊或扭曲。

And this is in the case of what we call macular edema, where those blood vessels leak fluid and the central part of the retina swells.

這就是我們所說的黃斑水腫，那些血管滲漏液體，導致視網膜中央部分腫脹。

And this can cause people's vision to be really blurry.

這會讓人的視力變得非常模糊。

But you'd be surprised how often People don't have any vision issues yet.

但你可能會驚訝地發現，很多人其實還沒有任何視力問題。

They still are having the swelling going on, which is one of the reasons why, when people are known to have diabetes, it's recommended for them to still see an eye doctor every year, even if they feel like their vision is perfect.

他們仍然有腫脹的情況發生，這也是為什麼，當人們確診糖尿病時，即使他們覺得視力完美，仍然建議他們每年都去看眼科醫生。

The fourth way sugar can affect the eyes is people can see new spots floating in their vision.

糖分影響眼睛的第四種方式是，人們可能會看到新的飛蚊症。

This is usually due to vitreous hemorrhage.

Similarly, when the blood vessels leak inside of the eye, they can bleed and they can float in the gel.

同樣地，當眼內的血管滲漏時，可能會出血並漂浮在玻璃體中。

And people will see this as either some blurred vision or kind of new floating spots.

人們會將此視為視力模糊或看到新的飛蚊症。

And in more advanced cases of retinopathy, you start to see new blood vessels grow inside the eye, something that we call neovascularization.

在更嚴重的視網膜病變情況下，你會開始看到眼內長出新的血管，這就是我們所說的新生血管。

You can even see this on number five, which is when you look at somebody's iris, and

你甚至可以在第五點看到，當你看一個人的虹膜時，

you'll see new blood vessels growing on the surface there.

你會看到新的血管在那裡表面生長。

Something that we call rubiosis or iris neovascularization.

Number six is where people can have loss of vision, and

第六點是人們可能會失去視力，

this is sometimes due to more advanced cases of things like diabetic retinopathy, where the blood vessels leak and a fibrous membrane forms, creating a retinal detachment, where this fibrous membrane pulls on the back of the eye and tears part of the retina coming off with it.

這有時是因為像糖尿病視網膜病變這樣更嚴重的病症，血管會滲漏並形成纖維膜，造成視網膜剝離，纖維膜會拉扯眼球後部，撕裂一部分視網膜。

And unfortunately, this usually ends up with devastating amounts of vision loss.

令人遺憾的是，這通常會導致毀滅性的視力喪失。

Number seven, I don't see many people talk about, and

第七點，我很少看到有人討論，

that's an increased risk of infection or ulcers on the surface surface of the eye or infections of the eyelid.

眼睛表面有感染或潰瘍，或是眼瞼感染的風險會增加。

This occurs because when you have elevated blood sugars, that sugar also ends up in your tear film.

這是因為當你的血糖升高時，這些糖分也會進入你的淚膜。

And this is believed to increase the risk of not only ulcers and infections from contact lens wear, but

而這不僅會增加配戴隱形眼鏡時產生潰瘍和感染的風險，

also things like eyelid styes and blepharitis, which also contributes to number eight, which is an increased risk of meibomian gland dysfunction or dry eye disease, because any amount of inflammation or other types of blepharitis do contribute to damage and breakdown of the oil glands in the eyelids, which destabilizes the tear film, which is then compounded by the ninth way, which is how blood sugars affect your nerves.

還可能導致像是麥粒腫和眼瞼炎等問題，這也跟第八點有關，也就是瞼板腺功能障礙或乾眼症的風險增加，因為任何發炎或類型的眼瞼炎都會損害和破壞眼瞼的油脂腺，導致淚膜不穩定，而這又會被第九點所加劇，也就是血糖如何影響你的神經。

And this is significant for the nerves on the surface of the eye, because the nerves on the eye also signal to your brain to make more tears, but

這對眼睛表面的神經很重要，因為眼睛的神經也會向你的大腦發送信號，讓眼睛製造更多淚水，

同時也會向眼睛發送信號，幫助眼睛癒合。

So, in a similar way, how people with diabetes can develop with ulcers on their feet and extremities, you can also end up with ulcers on the eye that don't heal something that we refer to as neurotrophic keratitis.

所以，就像糖尿病患者的腳部或四肢容易出現潰瘍一樣，你的眼睛也可能出現難以癒合的潰瘍，我們稱之為神經營養性角膜炎。

And then the tenth and final way is double vision.

This is oftentimes seen with people who have either extreme levels of poorly controlled diabetes or kind of just mixed with older age.

這通常發生在血糖控制極差的糖尿病患者，或是年紀較大的人身上。

There can be ischemic factors that affect the nerves of the muscles of the eye, and

可能會有缺血因素影響到眼部肌肉的神經，

then the muscles don't work together to coordinate the eye directions of where you're gazing, where people may end up seeing.

然後肌肉就無法協調眼睛的注視方向，人們可能會看到。

Constant double vision for a time, which can make it difficult and sometimes scary for eye doctors because, yes, you can have double vision due to ischemic factors, but

持續一段時間的複視，這對眼科醫生來說可能很困難，有時也很嚇人，因為，是的，你可能會因為缺血因素而出現複視，但

you can also have double vision because somebody's having something like a stroke.

你也可能因為有人中風而出現複視。

So those are not always fun cases to have in the clinic and examine.

所以在診所檢查時，這些情況並不總是那麼令人愉快。

Now, the core message of today's video is not to villainize having a sweet treat once in a while, right?

好了，今天影片的核心訊息不是要妖魔化偶爾吃點甜食，對吧？

Having a little bit of simple sugar or simple carbohydrates is totally fine in small amounts.

少量攝取一點點簡單的糖或簡單的碳水化合物是完全沒問題的。

However, if somebody is at risk of something like diabetes or is obese or has other risk factors that may tip them toward having elevated consistently large spikes in blood sugar, then they may have increased risk for vision changes.

然而，如果有人有糖尿病的風險，或者肥胖，或者有其他可能導致他們血糖持續飆升的風險因素，那麼他們發生視力變化的風險可能會增加。

And if you're having any of the symptoms that we discussed, of course, don't sit on it.

如果你出現了我們討論過的任何症狀，當然，不要拖延。

Now, I tried to make today's video a little bit shorter.

好了，我今天試著把影片弄得短一點。

So if you have any questions about anything that you talked about, drop them in the comments section below and I'll try to get back to you.

所以如果你對我們今天講的任何東西有疑問，請在下面的留言區告訴我，我會盡量回覆你。

Or perhaps I'll make another video doing a deeper dive into that subject.

或者我可能會再拍一支影片深入探討那個主題。

But from here, let me just say thank you so much for watching.

那從這裡，我要非常感謝你的收看。