Femtosecond and picosecond laser ablation of intraocular lenses: An advanced technique for their surface modification

Serafetinides, AA; Makropoulou, M; Spyratou, E; Bacharis, C; Barberoglou, M; Englezis, A; Kalpouzos, C; Loukakos, P; Pouli, P

dc.contributor.author	Serafetinides, AA	en
dc.contributor.author	Makropoulou, M	en
dc.contributor.author	Spyratou, E	en
dc.contributor.author	Bacharis, C	en
dc.contributor.author	Barberoglou, M	en
dc.contributor.author	Englezis, A	en
dc.contributor.author	Kalpouzos, C	en
dc.contributor.author	Loukakos, P	en
dc.contributor.author	Pouli, P	en
dc.date.accessioned	2014-03-01T02:53:17Z
dc.date.available	2014-03-01T02:53:17Z
dc.date.issued	2011	en
dc.identifier.issn	0094243X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36209
dc.subject	femtosecond laser ablation	en
dc.subject	intraocular lenses	en
dc.subject	picosecond laser ablation	en
dc.subject	SEM	en
dc.title	Femtosecond and picosecond laser ablation of intraocular lenses: An advanced technique for their surface modification	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1063/1.3631803	en
heal.identifier.secondary	http://dx.doi.org/10.1063/1.3631803	en
heal.publicationDate	2011	en
heal.abstract	Ophthalmology is entering a very interesting period with new diffractive multifocals, improved refractive multifocals, and accommodative lenses, all coming out at the same time. A new diffractive-refractive design for providing intermediated vision is apodization. In an apodized pattern, physical diffractive step heights are reduced in height, in an almost continuously varying manner. This study is aimed to investigate the use of ultrashort laser pulses to ablate the surface of intraocular lenses, and thus provide an alternative to conventional techniques. Ablation experiments were performed on hydrophilic and hydrophobic intraocular lenses (IOLs). The samples were irradiated with a Ti:Sapphire laser at λ=0.785μm, pulse duration 150 fs, repetition rate 1 kHz and with a Nd:YAG 4ω laser at λ=0.266μm, pulse duration 155 ps, repetition rate 10 Hz. We investigated the ablation efficiency and the surface modification with a Scanning Electron Microscope (SEM). The experimental results and the theoretical assumptions on the relevant ablation mechanism are discussed. © 2011 American Institute of Physics.	en
heal.journalName	AIP Conference Proceedings	en
dc.identifier.doi	10.1063/1.3631803	en
dc.identifier.volume	1380	en
dc.identifier.spage	12	en
dc.identifier.epage	17	en