Not sure if you need eyeglasses? Or are you a parent and you want to take your little one to the ophthalmologist, because you suspect he would need glasses? It is very important to know how to choose glasses and to take into account the symptoms, so we have prepared a small guide with the information you need.
Eyeglasses help us see better, but many of us may not even realize we need them. The health of the eyes can change over time, so even people who saw perfectly in the past may need, after a certain age, eyeglasses based on a prescription.
Eyeglasses are used by both adults and children. Even if you can’t always tell if you need glasses or not, it’s a good idea to go to the ophthalmologist for a routine checkup. If you have a child, the ophthalmologist needs to see him or her and evaluate his or her vision.
What symptoms may indicate that you need eyeglasses
Some people need eyeglasses, even if they do not have any symptoms, while other people may have very clear symptoms. Keep in mind, therefore, that the symptoms that indicate that you need eyeglasses may vary depending on the problem you have with the eye.
Some of the most common symptoms that may show that you need glasses to correct your vision are:
- blurry vision
- double vision
- ambiguity – the objects do not seem to have clear and defined lines, the objects seem to be a bit foggy
- eyes are half-closed, narrowing eyelids, to see better (middle)
- objects have an “aura” or a “halo” around them when they are in bright light
- eye fatigue or the feeling that the eyes are irritated or tired
- see distorted
- difficulty seeing and driving at night.
This is not a complete list, so if you notice any changes in what is usually “normal” in your case, call your ophthalmologist and schedule an appointment.
How to choose eyeglasses
If you are wondering what to choose – for eyeglasses or contact lenses – it is important to know a few things about the differences between them.
A prescription from an ophthalmologist (a “prescription”) for eyeglasses is not the same as a prescription you receive for contact lenses. The glasses are positioned almost 12 mm from the eyes, while the contact lenses are applied directly on the surface of the eyes.
Both prescriptions, both for glasses to correct vision and for contact lenses will contain information about the correction of certain disorders (myopia, presbyopia, and, if necessary, astigmatism).
What does the consultation for the prescription of eyeglasses entail?
Usually, the ophthalmological consultation involves several stages:
- The doctor will ask the patient more questions about the medical history and vision problems he has faced.
- The ophthalmologist measures visual acuity to find out if the patient needs glasses or contact lenses to improve vision.
- The patient will have special drops in his eyes, then the eye pressure will be measured; To make it easier to examine the inside of the eyes, the doctor will dilate the pupils with eye drops.
- After waiting for the drops to take effect and dilate the pupils, the doctor will check
the condition of the eyes, use several types of lights to evaluate the eyes and their interior in detail.
During the consultation, the doctor will perform several different types of tests, specially designed
to check the patient’s vision and to examine the appearance and functioning of all components of the eye.
At the end of the consultation, the doctor will discuss with the patient the results obtained after
all the tests and about the measures that the patient must take to protect his vision or to correct it (if necessary).
Of course, depending on the patient’s age, medical history, and the risk of developing certain
eye conditions, the doctor will recommend more specialized tests.
Depending on what has been found, the doctor will be able to provide a prescription for lenses
that correct the patient’s vision. If other abnormal results are found after the consultation,
the doctor will discuss the next steps regarding further tests or treatment of a newly discovered eye condition.
Differences between the types of lenses used in eyeglasses
If you have found out that you will have to wear eyeglasses based on the doctor’s prescription, you have the opportunity to choose from several types of lenses and you can choose eyeglass frames to your liking, depending on the shape of the face.
There are two different types of design for eyeglass lenses:
- monofocal lenses (are lenses designed to correct distance vision)
- and multifocal lenses, designed to correct both distant and close-up vision.
In the latter, the upper part of the lens is dedicated to distance vision and the lower part of the lens
is used for activities such as reading.
Multifocal lenses are those used in eyeglasses to correct presbyopia (when the eye can no longer focus on nearby objects). There are, therefore, bifocal lenses, which correct vision as follows: for reading,
the lower half of the lens is recommended, and the other half helps the person to see at a distance.
glasses with trifocal lenses, so lenses that have three characteristics for correcting vision:
the patient sees with their help at a distance, they help him in intermediate vision,
and help him to see up close (all in one pair of glasses).
There are even progressive lenses, which generally work the same way bifocal or trifocal lenses work,
but they have a smoother transition between areas that help the patient see at a distance
and close, so they have no visible lines. divide the areas on the lens.
In the case of children aged 3 years and under 3 years, the paediatrician will monitor the evolution
of the most common eye problems. The child can be taken to the ophthalmologist, for more detailed control, between 3 and 5 years.
The little one must be consulted by the ophthalmologist before going to first grade and,
if he has no symptoms indicating vision problems, the control will be repeated once every 1-2 years,
depending on the doctor’s recommendations.