[70] Ospina P D, Díaz M C, Plaza J P. A review in innovation in ocular prostheses and visual implants: New biomaterials and neuro-implants is the challenge for the visual care[J]. Journal of Ocular Diseases and Therapeutics, 2, 9-16(2014).
[89] van de Vrie R, Blomaard R. -07-01[P]. Biskop J. Method of printing an optical element: US20160003977.(2016).