Authors
Wiroj Limtrakarn
Department of Mechanical Engineering, Faculty of Engineering, Thammasat University, Rungsit Campus,, Pathumthani, Thailand
Somporn Reepolmaha
Department of Ophthalmology, Faculty of Medicine, Srinakharinwirot University,, Nakhonayok, Thailand
Pramote Dechaumphai
Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University,, Bangkok, Thailand