Tesis

Perbedaan Pengaruh Lampu Meja Light-Emitting Diode (LED) Invisible Flicker dengan LED Visible Flicker Terhadap Asthenopia = Comparison of The Effects of Invisible Flicker to Visible Flicker Light-Emitting Diode (LED) Desk Lamp on Asthenopia .

Penelitian ini bertujuan untuk mengetahui pengaruh lampu meja LED invisible flicker dan visible flicker terhadap asthenopia pada mahasiswa di perpustakaan. Penelitian ini merupakan uji klinis tersamar ganda cross over. Sebanyak 44 subyek dirandomisasi untuk mengerjakan visual demanding task selama 90 menit menggunakan kedua lampu, antara kedua intervensi diberikan selang 1 hari. Data diambil dari pengisian kuesioner, pengukuran near point Convergence (NPC) dengan Royal Air Force Ruler serta pengukuran accomodative facility (AF) dengan flipper lens sebelum dan sesudah intervensi. Proporsi keluhan asthenopia dan nilai perubahan AF pada kedua subyek tidak berbeda Penggunaan lampu meja LED invisible flicker meminimalisasi perubahan NPC.
Kata Kunci : Asthenopia; Light-Emitting Diode; invisible flicker; visible flicker


his study aimed to compare the effect of invisible flicker LED desk lamp to visible flicker on asthenopia in college student at the library. This randomized, double blind, cross over clinical trial compared the asthenopia symptoms and to compared changes in the near point convergence (NPC), accomodative facility (AF) in subjects doing 90 minutes visual demanding task using both lamps, with a 1 day break between crossover. In 44 subjects, there were no difference in the proportion of asthenopia and changes in the value of AF. Invisible flicker LED desk lamp usage can minimize NPC changes after intervention.
Keywords : Asthenopia; invisible flicker; visible flicker; Light-Emitting Diodes