An idea of intuitive mobile diopter calculator for myopia patient

Brata, Komang Candra; Hidayatulloh, Mukhammad Sharif

doi:10.12928/telkomnika.v17i1.11623

Cited by 7 publications

(7 citation statements)

References 21 publications

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“…Participants were required to rate the ten modified question items that include three usability variables: effectiveness, learnability, and satisfaction as adapted from Lewis and Sauro's research [33] with one of five responses that range from strongly agree to strongly disagree. With an overall score of 80.50 and a deviation of 4.11, the result is quite promising, which indicates that the proposed app can easily be accepted by users [34]. Besides, participants gave positive feedback for the value and comfort provided by the instant results of the eye power tests.…”

Section: Prototype Evaluationmentioning

confidence: 86%

A new perspective of refractive error calculation with mobile application

Brata

Hidayatulloh

Fanani

et al. 2020

IJECE

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In many situations, not standardized and limited access to eye health care in several regions of Indonesia becomes the main challenge for myopia patients to measure and monitor their current refractive error condition. Many apps were proposed to provide low-cost alternative measurement tools rather than expensive tools such as Phoropter with Snellen chart and Retinoscopy, but still, those apps need an Internet connection and manually complex steps to operate. These conditions make myopia patients reluctant to use this kind of service. In this regard, we propose an intuitive diopter level measurement app based on mobile application setup, which implements the concept of measure the user face to smartphone screen distance for the rapid diopter calculation processes and at the same time provides a low-cost alternative refractive measurement tool. This paper highlights our experiences when developing a mobile application that can help patients with myopia measuring their blur line distances and evaluate their diopter levels independently. We conduct a number of human trials with the device on a controlled environment to demonstrate the ability of the proposed app to measure the diopter level. The experimental results show that the proposed app is quite successful in measuring the diopter level of myopia patients with a relatively small range of calculation errors compared to optometrist measurement results.

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Section: Prototype Evaluationmentioning

confidence: 86%

A new perspective of refractive error calculation with mobile application

Brata

Hidayatulloh

Fanani

et al. 2020

IJECE

Self Cite

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“…This map adds a third-dimensional feature to a traditional user persona by focusing on a diachronic outline of a user and a product [16]. Recent works prove that this approach is an effective tool for rapidly gathering user stories in order to develop an intuitive application [17]- [20].…”

Section: Need Findingsmentioning

confidence: 99%

An alternative m-learning scoring approach to automatically evaluate Iqro’s pronunciation based on pitch, volume, and rhythm features

Brata

Nugraha²,

Brata³

2022

IJECE

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The Iqro’ has been proven as an effective method to improve literacy for reading Hijaiyah letters which are the fundamental skill for reading the Qur’an. The Iqro method relies on a mentor to evaluate the accuracy of the student’s pronunciation of the Hijaiyah letters. With the advancement of mobile technology, many mobile apps are available to assist the learning process. However, the existing solution that is available on the market only provides a one-way learning experience where users only focus on enhancing vocabulary, writing, and reading ability with a simple true-false assessment. Although enhancing the vocabulary and reading ability is important, training the correct Makhraj (Arabic pronunciation) is also essential in fundamental Hijaiyah learning. This paper presents the feasibility investigation of the usage of the pitch, volume, and rhythm as the more comprehensive audio assessment parameters in the voice recognition module to evaluate the student's ability to pronounce the Hijaiyah letter in an m-learning implementation. Instead of just presenting the true-false output, the proposed method will calculate the Makhraj correctness in the range 0 to 100. Experimental results with 10 respondents show that the sample correlation coefficient using Pearson between a manual assessment by Ustaz and the application result for Iqro’ level 1 is 0.51 which means this approach is acceptable for future implementation.

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“…A user journey map is a modern approach for modeling and analyzing the experience of users in the field of product design. Recent insight reveals that the user journey map is one of the effective tools to construct a mental model from a system [6][7][8][9]. This map offers the traditional user personas a three-dimensional attribute by adding a diachronic outline of the user and product interaction processes [10].…”

Section: Introductionmentioning

confidence: 99%

Usability improvement of public transit application through mental model and user journey

et al. 2021

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Using a mobile application that is featured with local public transit information can greatly improve user action, as well as assisting travelers to have a better experience while taking public transit services. Crowd environment inside a public transit is one of the most frequent causes that lead difficulties to passengers when they engaging their mobile devices to access their apps or in some conditions. Finding crucial information such as stops points and remaining time to interchanges point when switching to another line becomes more difficult in those conditions especially for foreigners who new in a particular region. This study presents the combination of a mental model and a usability approach to construct a user journey map that led to new insights on user's experiences and challenges when utilizing their mobile local transit application. This valuable information is a part of the elicitation process to propose an alternative interaction method to enhance the usability and travel experience of the public transit app. The experimental results indicate that in contrast to the existing mobile transit app, the proposed interface with the utilization of a wearable device could considerably enhance user action when trying to reach the desired location in terms of total time and performance. It implies that the proposed solution, which works through the mental model and user journey is able to intuitively enhance the public transit app usability.

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An idea of intuitive mobile diopter calculator for myopia patient

Cited by 7 publications

References 21 publications

A new perspective of refractive error calculation with mobile application

A new perspective of refractive error calculation with mobile application

An alternative m-learning scoring approach to automatically evaluate Iqro’s pronunciation based on pitch, volume, and rhythm features

Usability improvement of public transit application through mental model and user journey

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