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The Introduction of the ophthalmoscope?

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The eye disease can be detected by ophthalmoscope test. This article will mainly introduce the ophthalmoscope as follow:


1. What is an ophthalmoscope?


An ophthalmoscope is an instrument with light and several small lenses. Ophthalmoscope can be used in ophthalmoscope test that allows your ophthalmologist or doctor to look behind the eye. This part of the eye, called the fundus, is made up of the following:


l retina

l optic disc

l blood vessels


The ophthalmoscope test is usually included in a routine eye exam to screen for eye diseases. If you have a disease that affects blood vessels, such as high blood pressure or diabetes, your ophthalmologist may also order you to take it.


Ophthalmoscope may also be called fundus examination or retinal examination.


2. When to use ophthalmoscope?


Your ophthalmologist can use ophthalmoscope to screen for eye diseases and conditions that may affect blood vessels. These conditions include:


l Damage your optic nerve

l Retinal tear or detachment

l Glaucoma, which is excessive pressure on the eye

l Macular degeneration, loss of vision in the center of the field of vision

l Cytomegalovirus (CMV) retinitis, a retinal infection

l Melanoma, a type of skin cancer that can spread to the eye

l High blood pressure, also known as hypertension

l Diabetes


3. How should you prepare the ophthalmoscope?


An ophthalmologist may use eye drops to dilate the pupils before performing an ophthalmoscope. This makes them bigger and easier to navigate.


These eye drops can blur your vision and become sensitive to light for hours. When your pupils dilate, you should wear sunglasses to protect your eyes from strong light. After the ophthalmoscope test, you should arrange for someone to drive you home. If you are doing work that requires a clear view, such as operating heavy machinery, you should also schedule time off.


If you are allergic to any medication, talk to your eye doctor. If you are at risk of an allergic reaction, they may avoid using eye drops.


Some drugs may also interact with eye drops. You must inform your ophthalmologist of any medications you are taking, including over-the-counter, prescription and dietary supplements.


Finally, you should tell your ophthalmologist if you have glaucoma or a family history of glaucoma. If they know or suspect you have glaucoma, they may not use eye drops. The drops may increase the pressure on your eyes.


4. What happens during ophthalmoscope test?


At the beginning of ophthalmoscope test, your eye doctor may use eye drops to dilate your pupils. Water droplets may sting your eyes for a few seconds. They may also cause an odor in your mouth.


After your pupils dilate, your doctor will use ophthalmoscope examine the back of your eye. There are three different types of checks that can be performed:


l Directly ophthalmoscope check

l The indirect inspection

l Slit lamp inspection


Your doctor may perform one or more of these tests to make your eyes clearly visible.


Directly ophthalmoscope check


You will sit on the chair. The lights in the room would turn off. Your ophthalmologist will sit across from you and examine your eyes with an ophthalmoscope.


Your ophthalmologist can examine your eyes through a lens. They may ask you to look in certain directions while you are checking.


The indirect inspection


With this test, your ophthalmologist can see the structure behind the eye in more detail.


For this test, the system asks you to lie down or sit down. Your eye doctor will wear a bright light on his forehead. They will hold the lens while shining it in your eye to help them examine it.


Your doctor may ask you to look in certain directions when checking the back of your eye. With smaller, blunt probes, they may also put pressure on your eyes.


Slit lamp inspection


This procedure gives your ophthalmologist the same visual field as an indirect examination, but with greater magnification.


You will sit in front of the instrument called the slit lamp. It will give you a place to rest your chin and forehead. This will help you keep your mind steady during the exam period.


After being positioned, the eye doctor turns on the bright light. Then they will use a microscope to look behind your eyes. They may ask you to look in a different direction and open your eyes with your fingers for a better view. With smaller, blunt probes, they may also put pressure on your eyes.


After this article, you may have some knowledge about the ophthalmoscope.


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