眼睛干涩
眼睛干燥等,当眼泪无法稳定保持眼表充分润滑时,就会发生这种情况。
常见原因:
老花
药物
激光眼科手术
干燥空气过多
减少眨眼
长时间使用计算机
隐形眼镜的使用
女性激素变化
治疗
自我治疗:在一些不太严重的情况下可能有帮助:
使用防护眼镜阻挡干燥空气
加湿室内空气
将计算机屏幕置于视线水平以下
避免接触烟雾
使用人工泪液
通过眨眼和闭上眼睛来频繁地锻炼眼睛
富含维生素A食物和不饱和脂肪酸适当补充(肝脏,胡萝卜和西兰花)欧米伽脂肪酸-3, EPA, DHA
如果您发现以下情况,请去看医生:
眼睛发红
眼睛疼痛
阅读困难
如果您发现以下情况,请立即就医:
视力丧失
视力
感染的迹象,如发烧,炎症,液体排出
可用于确定干眼症原因的测试和程序包括:1.全面的眼科检查。眼科检查包括您的整体健康状况和眼睛健康的完整病史,可以帮助您的医生诊断您眼睛干涩的原因;特别是角膜荧光素染色下的泪液破裂时间检查(BUT检查,角膜荧光素是否染色阳性);2.测量眼泪量的测试。您的医生可能会使用Schirmer试验来测量您的泪液产生。结膜印迹细胞试验...3.泪液渗透压检查 4.睑板腺相关检查:分布,开头透明度,堵塞等检查和评估等
Diagnosis
Tests and procedures that may be used to determine the
cause of your dry eyes include:
A comprehensive eye exam. An eye exam that includes a complete
history of your overall health and your eye health can help your
doctor diagnose the cause of your dry eyes.
A test to measure the
volume of your tears. Your doctor may measure your tear production
using the Schirmer test. In this test, blotting strips of paper are
placed under your lower eyelids. After five minutes your doctor
measures the amount of strip soaked by your tears.
Another option for measuring tear volume is the phenol red
thread test. In this test, a thread filled with pH-sensitive dye
(tears change the dye color) is placed over the lower eyelid, wetted
with tears for 15 seconds and then measured for tear volume.
A
test to determine the quality of your tears. Other tests use special
dyes in eyedrops to determine the surface condition of your eyes. Your
doctor looks for staining patterns on the corneas and measures how
long it takes before your tears evaporate.
A tear osmolarity
test. This type of test measures the composition of particles and
water in your tears. With dry eye disease, there will be less water in
your eyes.
Tear samples to look for markers of dry eye disease,
including elevated matrix metallo proteinase-9 or decreased
lactoferrin.
More Information
Eye exam
Treatment
Punctal plugsOpen pop-up dialog box
For
most people with occasional or mild dry eye symptoms, it's enough to
regularly use over-the-counter eyedrops (artificial tears). If your
symptoms are persistent and more serious, you have other options. What
you do depends on what's causing your dry eyes.
Some treatments focus on reversing or managing a condition or factor that's causing your dry eyes. Other treatments can improve your tear quality or stop your tears from quickly draining away from your eyes.
Treating the underlying cause of dry eyes
In some cases,
treating an underlying health issue can help clear up the signs and
symptoms of dry eyes. For instance, if a medication is causing your
dry eyes, your doctor may recommend a different medication that
doesn't cause that side effect.
If you have an eyelid condition, such as your lids turned outwards (ectropion), your doctor may refer you to an eye surgeon who specializes in plastic surgery of the eyelids (oculoplastic surgeon).
Medications
Prescription medications used to treat dry eyes include:
Drugs to reduce eyelid inflammation. Inflammation along the edge of
your eyelids can keep oil glands from secreting oil into your tears.
Your doctor may recommend antibiotics to reduce inflammation.
Antibiotics for dry eyes are usually taken by mouth, though some are
used as eyedrops or ointments.
Eyedrops to control cornea
inflammation. Inflammation on the surface of your eyes (cornea) may be
controlled with prescription eyedrops that contain the
immune-suppressing medication cyclosporine (Restasis) or
corticosteroids. Corticosteroids are not ideal for long-term use due
to possible side effects.
Eye inserts that work like artificial
tears. If you have moderate to severe dry eye symptoms and artificial
tears don't help, another option may be a tiny eye insert that looks
like a clear grain of rice. Once a day, you place the hydroxypropyl
cellulose (Lacrisert) insert between your lower eyelid and your
eyeball. The insert dissolves slowly, releasing a substance that's
used in eyedrops to lubricate your eye.
Tear-stimulating drugs.
Drugs called cholinergics (pilocarpine, cevimeline) help increase tear
production. These drugs are available as pills, gel or eyedrops.
Possible side effects include sweating.
Eyedrops made from your
own blood. These are called autologous blood serum drops. They may be
an option if you have severe dry eye symptoms that don't respond to
any other treatment. To make these eyedrops, a sample of your blood is
processed to remove the red blood cells and then mixed with a salt
solution.
Other procedures
Other procedures that may be used
to treat dry eyes include:
Closing your tear ducts to reduce tear loss. Your doctor may suggest this treatment to keep your tears from leaving your eye too quickly. This can be done by partially or completely closing your tear ducts, which normally serve to drain tears away.
Tear ducts can be plugged with tiny silicone plugs (punctal plugs).
These are removable. Or tear ducts can be plugged with a procedure
that uses heat. This is a more permanent solution called thermal
cautery.泪点塞
Using special contact lenses. Ask your doctor about
newer contact lenses designed to help people with dry eyes.
Some people with severe dry eyes may opt for special contact lenses that protect the surface of the eyes and trap moisture. These are called scleral lenses or bandage lenses.巩膜镜或绑带镜
Unblocking oil glands. Warm compresses or eye masks used daily can
help clear up blocked oil glands. A thermal pulsation device is
another way to unclog the oil glands, but it is unclear whether this
method provides any advantage over warm compresses.
Using light
therapy and eyelid massage. A technique called intense-pulsed light
therapy followed by massage of the eyelids has proved to help people
with severe dry eyes.
Lifestyle and home remedies
You may be able to manage your
dry eyes with frequent eyelid washing and use of over-the-counter
(OTC) eyedrops or other products that help lubricate your eyes. If
your condition is long term (chronic), use eyedrops even when your
eyes feel fine to keep them well lubricated.
Selecting and using OTC products for dry eyes
A variety of
nonprescription products for dry eyes are available, including
eyedrops (artificial tears), gels and ointments. Talk with your doctor
about which might be best for you.
Artificial tears may be all you need to control mild dry eye symptoms. Some people need to put drops in several times a day, and some use them only once a day.
Consider these factors when selecting an OTC product:
Preservative vs. nonpreservative drops. Preservatives are added to some eyedrops to prolong shelf life. You can use eyedrops with preservatives up to four times a day. But using the preservative drops more often can cause eye irritation.
Nonpreservative eyedrops come in packages that contain multiple
single-use vials. After you use a vial, you throw it away. If you rely
on eyedrops more than four times a day, nonpreservative drops are
safe.
Drops vs. ointments. Lubricating eye ointments coat your
eyes, providing longer lasting relief from dry eyes. But these
products are thicker than eyedrops and can cloud your vision. For this
reason, ointments are best used just before bedtime. Eyedrops can be
used at any time and won't interfere with your vision.
Drops that
reduce redness. It's best to avoid these as your solution for dry
eyes, as prolonged use can cause irritation.
Washing your eyelids
to control inflammation
For people with blepharitis and other
conditions that cause eyelid inflammation that blocks the flow of oil
to the eye, frequent and gentle eyelid washing may help. To wash your eyelids:
Apply a warm washcloth to your eyes热敷. Wet a clean cloth with warm
water. Hold the cloth over your eyes for five minutes. Rewet the cloth
with warm water when it cools. Gently rub the washcloth over your
eyelids — including the base of the eyelashes — to loosen any
debris.
Use a mild soap on your eyelids温和的肥皂. Use baby shampoo or
another mild soap. Put the cleanser on your clean fingertips and
gently massage your closed eyes near the base of your eyelashes. Rinse
completely.
More Information
Artificial tears人工泪液选择: How to
select eyedrops for dry eyes
Alternative
medicine替代治疗
Further study is needed, but some alternative
medicine approaches may help relieve your dry eye symptoms. Discuss
the benefits and risks with your doctor.
Fatty acids. omega-3脂肪酸口服Adding omega-3 fatty acids to your diet may
help relieve dry eye signs and symptoms. These are available as
supplements and in foods such as flaxseed, salmon and
sardines.
Castor oil eyedrops蓖麻油滴眼液. These eyedrops may improve
symptoms by reducing tear evaporation.
Acupuncture针灸. Some people
have seen their dry eye symptoms improve after acupuncture
therapy.
Preparing for your appointment
You're likely to
start by seeing your family doctor. He or she may then refer you to an
eye specialist (ophthalmologist). Because appointments can be brief,
it's a good idea to be well prepared for your appointment.
What you can do
List any symptoms you're experiencing, including
any that may seem unrelated to the reason for which you scheduled the
appointment.
List key personal information, including any recent
life changes.
Make a list of all medications, vitamins and
supplements that you're taking.
List questions to ask your
doctor.
For dry eyes, some basic questions to ask your doctor include:
What's the most likely cause of my dry eyes?
Do I need any
tests?
Can dry eyes get better on their own?
What are my
treatment options?
What are the potential side effects of each
treatment?
I have other health conditions. How can I best manage
these conditions together?
Is a generic drug available for the
medicine you're prescribing me?
Do you have any brochures or
other printed material that I can take with me?
What websites do
you recommend?
Do I need to plan for a follow-up
visit?
Don't hesitate to ask additional questions that may occur
to you during your appointment.
What to expect from your doctor
Your doctor may ask:
Can you describe your symptoms?
Do you recall when you first
began experiencing symptoms?
Have your symptoms been continuous
or occasional?
Do other members of your family have dry
eyes?
Have you tried over-the-counter eyedrops? Did they provide
relief?
Are your symptoms worse in the morning or late in the
day?
What medications do you take?
Have you had any
radiation to the head or neck?
What you can do in the
meantime
To relieve your signs and symptoms while you wait for
your appointment, try over-the-counter eyedrops. Look for lubricating
eyedrops (artificial tears) and avoid those that advocate reducing
redness in the eyes. Eyedrops that reduce eye redness can cause
additional eye irritation.
Sept. 24, 2020
Book: Mayo Clinic Guide to Better Vision
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眼睛充血、眼屎和眼痒,请问是什么原因引起的?患者男性24岁
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珠海眼管家眼科诊所
患者有散光,想了解如何选择合适的眼镜度数。
就诊科室:眼科
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我有850度近视和大散光,想知道如何选择合适的眼镜框架?
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珠海眼管家眼科诊所