Eyeglass Selection
Eyeglass selection begins not with choosing frames, but with a precise understanding of how the eye focuses images. Errors in refraction, lens alignment, or frame fit can cause strain, headaches, and rapid visual fatigue.
At K+31, we select glasses after a diagnosis to take into account not only the prescription but also the patient's actual visual load.
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General information
How We Select Glasses
At "K+31," the appointment follows a clear process. We clarify complaints, previous correction experience, screen time, driving, and reading. The doctor then takes measurements and checks the patient's tolerance to the selected parameters.
Before prescribing, we evaluate the following data that influence the outcome:
- Visual acuity
- Refraction
- Interpupillary distance
- Frame position on the face
- Visual strain and use scenarios
After the examination, the doctor explains the data. If prescription glasses are needed, the patient receives recommendations on lenses, frames, wearing schedule, and adaptations.
Vision and refraction check
Refraction measures how the eye refracts light. Using this measurement, the doctor determines the diopter, cylinder, and cylinder axis. The doctor also checks the diopters in a trial frame.
- When nearsightedness is present, distance vision is impaired.
- When farsightedness is present, the strain often increases at close range.
We don't limit ourselves to automatic measurements. The doctor compares the device data with a trial correction. With astigmatism, the cylinder and cylinder axis are particularly important: inaccurate selection of these parameters can result in blurry letters, lines, and outlines.
Determining the interpupillary distance and frame fit.
The optical center of the lens should be positioned opposite the pupil. To achieve this, the doctor accurately measures the interpupillary distance and takes into account the fit of the future glasses on the face. If the lens is centered incorrectly, the gaze passes through the wrong area of the lens, which can cause:
- Eyestrain
- Emergency fatigue
- Discomfort when reading or working at a screen
Therefore, an ophthalmologist's selection of glasses includes not only refraction but also manufacturing parameters.
We also evaluate the fit of the frame.
The seat height, frame tilt, bridge width, temple length, and distance from the lens to the surface of the eye are all important.
Even precisely calculated lenses can be uncomfortable if the frame shifts, puts pressure, or changes the position of the optical zone when moving the head.
Choosing glasses lenses for your lifestyle and visual strain
The same refraction does not mean the same prescription. Drivers, schoolchildren, accountants, and office workers use their vision differently. Therefore, we consider:
- Distance
- Lighting
- Duration of vision and habits
The doctor helps select glasses for the specific task. One patient needs glasses for daily wear, another a pair for the computer, and a third needs progressive correction.
If presbyopia is present, options for near and intermediate distances are discussed.
Frequently Asked Questions
Before making an appointment, patients often want to understand how the appointment will work and whether they can use their old prescription. We'll give you short and to the point answers.
How does a glasses fitting process work?
Can glasses be fitted without a prescription?
What should I do if my new glasses are uncomfortable?
How does a custom fit differ from off-the-shelf glasses?
Make an appointment with a doctor
If your vision has become less clear or you need glasses for a specific task, start with a consultation: it's best to choose glasses after a checkup. At K+31, we'll evaluate your refraction, explain the results, and help you choose the right correction.
You can schedule a fitting appointment in advance, choosing a convenient time.
Consultation and Diagnostics
During the appointment, the doctor allows time for complaints, measurements, and explanations. The patient understands what parameters are already known, what needs to be checked further, and which correction options are suitable for their regimen.
If complaints go beyond the scope of a standard optical problem, additional examinations are scheduled.
Finding a solution tailored to your needs
During the consultation, we immediately discuss how the patient will use the glasses: all day, only at the computer, reading, driving, or in several modes. This determines not only the lens strength but also the ease of transitioning to a new correction. If you need lenses for the first time, the doctor will explain:
- How to read a prescription
- Why individual parameters are needed
- Why it's important to evaluate the sensations during the first few days after fitting
Glasses fitting at "K+31" provides the patient with a clear path—from examination to a safe transition to a new pair of lenses.
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When you need professional eyeglass fitting
The reason may be a clear deterioration in vision, but the complaints may not be too severe. A person can see a chart adequately, but quickly tires of looking at a screen, squints while driving, or removes old lenses when reading.
Here, an examination helps determine whether glasses are needed and what parameters are safe.
Signs that your current glasses are not suitable
A previous prescription for glasses may be outdated. The eye begins to focus images differently, so the old pair no longer completely relieves visual strain. The patient may notice:
You may feel as if you have to search for text at a comfortable distance. If these complaints are accompanied by pain, stinging, redness, nausea, or flashes before the eyes, an in-person examination is necessary.
When should you avoid buying ready-made glasses?
Ready-made optics are designed for average values. They do not take into account astigmatism, lens alignment, or facial fit. For children, elderly patients, people with nearsightedness, farsightedness, or different eye strengths, it is better to choose glasses after an in-person examination by an ophthalmologist.