TY - JOUR AU - WAN HARUN, MARYAM ALIYA AU - ITHNIN, MOHD HAFIDZ PY - 2020/02/25 Y2 - 2024/03/29 TI - THE EFFECT OF 6 PRISM BASE-OUT DURING SMARTPHONE USE ON NEAR VERGENCE AND ACCOMMODATION SYSTEMS JF - INTERNATIONAL JOURNAL OF ALLIED HEALTH SCIENCES JA - Inter. J. All. Heal. Sci. VL - 4 IS - 1 SE - Original Articles DO - 10.31436/ijahs.v4i1.415 UR - https://journals.iium.edu.my/ijahs/index.php/IJAHS/article/view/415 SP - 1011-1016 AB - <p><strong>Introduction: </strong>Prism is used in binocular vision assessment and visual therapy. The short-term use of prism, particularly base-out prism on vergence and accommodation system, was not well-explained in the previous investigations. <strong>Aim: </strong>This current study aimed to assess the effect of 6 prism base-out­ for 15 minutes on vergence and accommodation system during the utilization of smartphone. <strong>Methodology:</strong> Thirty normal participants were recruited in this quasi-experimental study. All participants wore 6 prism-base out for 15 minutes while using smartphone at 40cm. Near positive fusional vergence (PFV) and amplitude of accommodation (AA) were measured before and after 15 minutes of 6 prism base-out wear during smartphone usage. <strong>Results: </strong>The results showed no significant difference for both parameters measured when comparison was made between before and after prism base-out inducement in front of eye.<strong> Conclusion: </strong>The vergence and accommodation systems presented in this study were almost identical among normal subjects after inducement of 6 prism base-out for 15 minutes during watching smartphone.</p> ER -