The "Share Result" button can be used to share the result, and the "Back to home" button to return to the home screen without saving. By clicking on the "Save Result" button on this screen, you can save the result so that it can be recalled on the home screen. If they are in place, confirm the annotation with the green "Done" button.Īfter annotation, the phone calculates the result and shows it on the Result Screen. To move the markers, tap them, then drag and drop them to place them. Warning of the approval screen when no photo has been taken, in this case the "Continue" button is deactivatedĪfter approval, we have to "annotate" the image by placing markers first on the pupils and then on the bottom two corners of the card as shown on the images. In this case, we cannot go further until we successfully take a picture. If no picture is taken, an "X" will appear in the place of the picture and the application will give a warning. Returning from the camera, we can check whether the image we took is correct and, if necessary, we can take a new picture or approve the photo. With the phone's camera the user can take the photo required for the measurement. After pushing this button, the built-in camera application opens. All of these screens have a "Done" button except for the last one, on which there is a "Take photo" button. Every step is described in textual form as well as in graphic form. The home screen during the recall of the saved PD.īefore the measurement process, the application explains the measurement process on four tutorial screens. The home screen with the "Get started" button and the "See saved PD" button. When clicking on the application logo some developer info will show up. There are white text bubbles on each screen, that contain the actual task, so the user is never lost. A "See saved PD" where the user can save his / her PD, so once it has been measured, it won't have to be remeasured later, even if it has been forgotten.A "Get Started" button to start the measurement procedure.When the app starts up, the welcome screen will greet us with two buttons: This result will be available directly on the homepage. ![]() The user can save the measurement result for later use. The user can share the measurement result with other applications, copy it to the clipboard, share it on social platforms or with the eyewear webshop that redirected him to the application. The application then creates a "new measurement project" in which the user "annotates" the image, that is, by touching and dragging, places markers on his eyes and on the lower corners of the card.įrom the given inputs, the application calculates the pupillary distance using a mathematical formula, then the result is presented to the user on a Result Screen. The application guides the user through tutorial screens before capturing the image, informing the user of the correct image acquisition process. To determine this PD value, the user creates a selfie with the phone's built-in camera, holding a standard size card - student card, credit card, etc. ![]() In addition, it was a requirement that the app should run and perform basic functions smoothly and functionally on many legacy devices as well. Simplicity, intuition and instant, quick usability were the guiding principles during the development of the application, as many older and visually impaired people will use the application. The parameters to be specified are usually the diopter, which are available free of charge from a CTC ophthalmologist, and the so-called pupillary distance (PD), which has the purpose of aligning the two focal points of the lenses, in line of sight, so that the glasses will improve sight in the desired way, they will comfortably sit on the head, will not snap, nor will they be too big.ĮyeTool is used to determine the PD parameter easily, without the help of an optician. Such online ordered glasses cost around $20-30 compared to $200-300+ purchased in conventional optics. Like in a webshop, the customer can choose the glasses they like, then after providing a few parameters you can order them, make them cheap and mail them to them. SelectSpecs, Firmoo) have appeared in recent years, where by specifying a few parameters one can get a cheap eyewear. To compensate for this, online eyewear ordering sites (eg. ![]() Opticians work at high margins with a small number of products, practically manufactory-like, so the final price of glasses will be high. Many people cannot afford to buy eyeglasses or have their lenses polished by an optician. EyeTool is a universal distance measuring tool for Android devices that can be used primarily when ordering glasses online.
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