To be able to graduate your lenses, we need the updated prescription written by your eye doctor, with values for the right and left eye. It is important that your values are no older than 2 years.How to read the eye prescription: In addition to RE (right eye) and LE (left eye), here are other common abbreviations that may be helpful in understanding your prescription: Sphere (S/SPH): The sphere indicates lens strength. In front of the value is a plus (+) symbol if you are presbyopic and a minus (-) sign if you are nearsighted. Pay attention to the symbol when placing your order. If no symbol is present, it usually indicates a plus (+) value. Interpupillary distance (PD): the interpupillary distance is the respective position between the center of the pupil and the center of the bridge of the nose. This tends to be different for both the right and left eye and is usually between 25 and 38 mm. This value is often denoted as a single number between 50 and 76 mm. In this case it denotes half of this value for each respective eye. For example, if you have a value of 60 mm, this would denote a distance of 30 mm for the right and left eye, respectively. Cylinder (ZYL/ CYL): Relevant only to those with corneal irregularities: the cylinder indicates the height of the corneal curvature. Axis (A/ACH): Relevant only to those with corneal irregularities: the axis is expressed in degrees and defines the alignment of the cylinders needed to correct corneal irregularities. You will need it for your lenses to be properly aligned. The axis is always between 0° and 180°. Addition (ADD): Relevant only for varifocal spectacles: addition (ADD) denotes lens strength, in addition to distance correction. This is important for those who also need help when seeing things up close, such as when reading. This value is always positive and is often the same in both eyes.
If you already own a pair of glasses that have a similar shape to the frames you are interested in (e.g., angles), you can use them to help you determine the right width for your face shape. Simply use a standard ruler and measure along the top of the frame from the furthest point to the other. Note: Not all models are available in all sizes. This should not be a big problem, as your favorite frames may deviate up to ± 2 mm from the actual width. In the case of sunglasses, the range is even wider since they generally tend to be worn a little larger. If you wear angular frames with a width of 138 mm, you can be sure that virtually any angular glasses with a width of 136 to 140 mm will fit comfortably.Is the width of my glasses indicated on the frame? Unfortunately no, the width of a pair of glasses is not written on the frame. The width must be measured with a ruler.
The interpupillary or pupillary distance (abbreviated as DP) is the distance that passes between the two pupils of the eyes and is measured in millimeters. It is a measurement that does not change over the course of an adult's lifetime: generally in a large person the average distance is 62 millimeters, but can vary between 54 and 74 millimeters; while for children it ranges between 43 and 53 millimeters. Can I graduate lenses without indicating the interpupillary distance? No, you cannot: in order to complete the preparation of your prescription lenses, we need to receive a copy of your prescription and to know the value of your interpupillary distance. Measuring interpupillary distance at home Our advice is always to consult specialists, but if you would like to satisfy your curiosity and know your interpupillary distance, you can also do it at home with very few items. All you need is a mirror and a ruler; if you want you can get a family member or friend to help you. Those who have very dark eyes may have more difficulty identifying the pupil, therefore, you need a room with good lighting. Two different methods can be used to measure interpupillary distance at home: The first requires the person to wear eyeglasses well on the nasal septum and alone with the help of a mirror mark with a marker directly on the lens the point representing the center of the pupil. On the other hand, if the cooperation of a person is needed, it is good not to look straight ahead, but at the ear of the person in front of you. For example, if we are taking the measurement of the right eye one should look at the opposite ear of the person who is taking the measurement. The operation should also be repeated for the left eye in the same way. At the end, the two dots made on the lens will be measured with a ruler and this will be the interpupillary distance. At the end of the measurement, we recommend cleaning the glasses well. The second, on the other hand, does not involve the use of glasses, but requires the person to stand about 20 cm away from the mirror in a well-lit room. In this case, a ruler is needed to be held horizontally at eyebrow height. With a straight head, close the right eye and align the zero of the ruler with the center of the left pupil. Then open the right eye and see the measurement considering the center of the right pupil. Note the recorded DP measurement, and then repeat the measurement one or more times by reversing the starting eye. If the measurement is taken by another person, be careful to look over the head of the friend or family member.
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By clicking here and within each product sheet, you will find a size guide, within which you can find out all the information about the size of the glasses.
Can I wear the glasses virtually? With Virtual Try-On, you can wear your glasses in real time before you buy them-all you need is the camera on your phone or the webcam on your computer. Augmented Reality technology gives you a realistic perspective on how the frame fits your face. Choose the model you prefer and click the "TRY NOW" button on the product tab Try it live with your camera and admire the effect of the glasses on your face in real time! Simply enable camera access to start the function. Position yourself in the centering device by arranging your hair behind your ears. If you cannot see yourself clearly, you can also record a short video of yourself and try on the glasses in the recorded video. Upload an image to enable the virtual trial. If you are shopping for someone else or cannot use a camera, upload the picture and the virtual try-on feature will automatically use it for each pair of glasses you wish to try on the site.
