သင့္မွာ ဒီအခ်က္ေလးေတြ ရွိေနရင္ မ်က္စိစစ္ေဆးဖို႔ ရက္ခ်ိန္းယူလိုက္ပါ
– အလင္းစူးျခင္းကို မခံႏိုင္လွ်င္
– သင့္မ်က္စိက်န္းမာေရးတခါမွ မစစ္ဘူးလွ်င္
– အျမင္အာ႐ုံတြင္ အမဲစက္ေလးေတြ ျမင္ေနလွ်င္
– ဆီးခ်ဳိ ေသြးတိုးေရာဂါရွိလွ်င္
– မိမိ မ်က္စိက်န္းမာေရးႏွင့္ပက္သက္ေသာ အေသးစိတ္ အခ်က္အလက္မ်ား စစ္ေဆးလိုလွ်င္ျဖစ္ျဖစ္ ေဆြးေႏြးလိုလွ်င္ျဖစ္ျဖစ္
ေႏြးေထြးေသာဝန္ေဆာင္မႈ ႏွင့္ တိက်မွန္ကန္ေသာ စစ္ေဆးခ်က္မ်ား ရရွိႏိုင္ေသာ အလွသစ္ မ်က္စိေဆးခန္း ႏွင့္ မ်က္မွန္ဆိုင္ သို႔ အေရာက္လွမ္းခဲ့ဖို႔ ဖိတ္ေခၚပါတယ္။
၀၉-၂၅၉ ၃၆၃၀၆၀/၀၉- ၉၇၉ ၂၃၅၀၄၄
viber : ၀၉-၂၅၉ ၃၆၃၀၆၀
Eye Charts Explained
During an eye test, eye doctors use eye charts to measure how well you see in the distance, compared with other human beings.
The classic example of an eye chart is the Snellen eye chart, developed by Dutch eye doctor Hermann Snellen in the 1860s. There are many variations of the Snellen eye chart, but in general they show 11 rows of capital letters. The top row contains one letter (usually the "big E," but other letters can be used). The other rows contain letters that are progressively smaller.
During an eye exam, your eye doctor will ask you to find the smallest line of text letters that you can make out, and ask you to read it. If you can read the bottom row of letters, your visual acuity is very good.
Three types of chart:
- "Tumbling E" Eye Chart
- 20/20 Vision In An Eye Test Means
- Near Visual Acuity: The Jaeger Eye Chart
Eye charts measure visual acuity only. They do help your eye doctor figure out whether you need prescription eyeglasses or contact lenses for your distance vision. And they help the Department of Motor Vehicles to determine if you are required to use eyewear for driving, or if you shouldn't drive at all because you are legally blind.
But eye charts don't measure your peripheral vision, depth perception, color perception or ability to perceive contrast.
And they don't measure items related to the health of your eyes, such as your eye fluid pressure, whether you have glaucoma, how dry your eyes are or whether your retinas are in good shape.
So eye chart testing is just one component of a complete eye exam, which you should have every one or two years.
When do you need eye exams?
You may be surprised to learn that yearly eye exams are an easy and important way to protect your eyes and overall health. A routine eye examination can help detect signs of serious health conditions, such as diabetes, high blood pressure, high cholesterol, autoimmune disorders, and even some cancers/tumors.
Periodic eye and vision examinations are an important part of preventive health care. Many eye and vision problems have no obvious signs or symptoms. As a result, individuals are often unaware that problems exist. Early diagnosis and treatment of eye and vision problems are important for maintaining good vision and eye health, and when possible, preventing vision loss.
Schedule an appointment if you have:
- Blurry vision
- Eye turns (cross-eye)
- Problems with glare
- Trouble seeing at night
- Double vision
- Eyestrain with reading/computer
- If you have never had a comprehensive eye exam
Comprehensive Eye Exam
A comprehensive eye exam is an important part of caring for your overall health whether you need vision correction or not. By looking into your eyes, your doctor can check for signs of serious health conditions like hypertension and diabetes.
During a comprehensive eye exam, your VSP network doctor will look for signs of glaucoma, perform tests to check your vision sharpness, determine your prescription strength, examine how your eyes work together, and check the fluid pressure in your eyes. She may also dilate your eyes to see if you have any eye conditions or signs of other serious health conditions.
Contact Lens Exam
If you wear or want contacts, you need a contact lens exam in addition to a comprehensive eye exam. Your eye doctor will perform special tests during a contact lens exam to evaluate your vision with contacts. The first test will measure your eye surface to determine what size and type of contacts are best for you. Your doctor may also do a tear film evaluation to make sure you have enough tears to comfortably wear contacts.
With the results of those tests, your eye doctor can provide a contact lens prescription that is the right fit for your eyes. An eyeglass prescription is no substitute for a contact lens exam because the two are very different. An eyeglass prescription measures for lenses that are positioned approximately 12 millimeters from your eyes; whereas a contact lens prescription measures for lenses that sit directly on the surface the eye. An improper fitting or prescription of contacts can damage the health of the eyes.
Once you have the correct fit and prescription for contacts, you'll need to decide whether you want disposable contacts or extended wear, and if you want your contacts to be colored.
Your doctor will fit you with a trial pair of contacts and have you wear them for a few days. In about a week, you'll need a follow-up exam to make sure you have adjusted to your new lenses.
Whether you wear glasses or contacts, it's a good idea to get a yearly eye exam to see if you have new or existing vision problems, and if you need vision correction.