Effective optical and treatment zone analysis by means of cross-over differences after lenticule extraction by Hamed Haidari, Victor Derhartunian, Thomas Magnago, Maren-Christina Lengle, Samuel Arba-Mosquera

“…Design: Retrospective case series. Methods: A fully automated method to determine the boundaries of the optical and treatment zones of a lenticule of tissue extracted from a cornea has been developed, in which the boundaries of the corrected area are derived from differences between post and preoperative maps of several corneal metrics by determining the smallest cross-over point along each semi-meridian. …”
Get full text

Optical dispersion characterization of CZTS thin films prepared by sol gel at different annealing temperature by Ali Ismail Salih

Get full text

The optical properties of Poly methyl methacrylate (PMMA) polymers doped by Potassium Iodide with different thickness by Baghdad Science Journal

“…Films of pure Poly (methyl methacrylate) (PMMA) doped by potassium iodide (KI) salt with percentages (1%) at different thickness prepared by casting method at room temperature. …”
Get full text

Comparison of Four Methods for Corneal Thickness Measurement by Teodora Marinova, Vesela Ivancheva, Svilena Peeva, Christina Grupcheva

“…The study was based on evaluating repeatability and comparability of four different methods formeasuring the corneal thickness. …”
Get full text

Staining susceptibility and the effect of different stain removal techniques on the optical properties of injectable composite resins by Nancy Soliman Farghal, Nancy Soliman Farghal, Fadia Awadalkreem, Shahistha Parveen Dasnadi, Shatha Habush, Nur Ali Hatab, Asmaa Harhash

Get full text

The assessment of the stability of the corneal structure after LASIK correction of myopia by different optical zone diameters by Milivojević Milorad, Petrović Vladimir, Vukosavljević Miroslav, Marjanović Ivan, Resan Mirko

“…Background/Aim. Enlargement of optical zone (OZ) diameter during laser in situ keratomileusis (LASIK) correction of myopia postoperatively improves the optical outcome, however, it also leads to the increased stroma tissue consumption - progressive corneal thinning. …”
Get full text

Effect of Spherical Aberration on the Optical Quality after Implantation of Two Different Aspherical Intraocular Lenses by Michael Lasta, Kata Miháltz, Illés Kovács, Pia Veronika Vécsei-Marlovits

“…To compare the effect of spherical aberration on optical quality in eyes with two different aspherical intraocular lenses. …”
Get full text

Comparison of Two Toric IOLs with Different Haptic Design: Optical Quality after 1 Year by Kata Miháltz, Michael Lasta, Michael Burgmüller, Pia Veronika Vécsei-Marlovits, Birgit Weingessel

“…Methods. 59 subjects with corneal astigmatism greater than 1.25 diopter (D) were implanted with an AT TORBI 709M IOL (Carl Zeiss Meditec AG) in one eye and with a Tecnis toric aspheric IOL (Abbot Medical Optics) in the other eye. …”
Get full text

Short-term effects of different wavelengths on axial length with induced optical defocus among emmetropes by S. Ullah, M. F. Umer, S. P. Chandran

“…Emmetropes exhibit AL changes to different wavelength as per longitudinal chromatic aberrations, and dominate optical defocus effect.…”
Get full text

Quantitative study of selected Facebook marketing communication engagement factors in the optics of different post types by Ľudovit Nastišin, Richard Fedorko, Vladimir Vavřečka, Radovan Bačik, Martin Rigelsky

Get full text

Impact of thermocycling on surface roughness, microhardness and optical properties of three different lithium disilicate ceramics by Ahmad M. Al-Thobity, Abdulkareem M. AlOtaibi, Abdulrahman E. Alhumaidan, Ahmed A. Aldossary, Intisar Ahmad Siddiqui, Mohamed Ahmed Helal, Abdulmohsen Alsalman

“…Data of surface roughness, color parameters, and microhardness were obtained using an optical profiler, a spectrophotometer, and a Vickers hardness tester, respectively. …”
Get full text

Reference Optical Spectrum Based In-Band OSNR Monitoring Method for EDFA Amplified Multispan Optical Fiber Transmission System With Cascaded Filtering Effect by Guo Yin, Sheng Cui, Changjian Ke, Deming Liu

“…The OSNR monitor based on the new method is also more convenient to use as only one-time calibration is required when used at different monitoring locations along the optical link.…”
Get full text

Signal subtraction using nanosecond optical pulses with two different pulse energies in two-photon photoacoustic microscopy (TP-PAM) with a ring-shaped acoustic transducer to evalu... by Takashi Kaneko, Seiji Maehara, Shujiro Hamano, Yoshihisa Yamaoka, Akira Kimoto

Get full text

Influence of the Zinc Tin Oxide Nanoparticle proportions on the Optical properties prepared by the laser Method by Aissa R. Safah, Zuheer N. Majeed, Kasim H. Mohmood

“… In this research, the pulse laser deposition method was used by the PLD Nd:YAG wavelength laser nm1064λ = to precipitate thin films of pure zinc oxide and tin-like oxide with different weight ratios (0.2 , 0.4)kg were deposited on glass bases in order to study the effect of annealing at a degree 573k and deformation of some physical properties of zinc nanoparticle oxide films. …”
Get full text

Optical Method for Cardiovascular Risk Marker Uric Acid Removal Assessment during Dialysis by Jana Holmar, Ivo Fridolin, Fredrik Uhlin, Kai Lauri, Merike Luman

“…Three models for the original and three for the first derivate of UV absorbance were created; concentrations of UA from the different methods were finally compared in terms of mean values and SD. …”
Get full text

A Joint OSNR and Nonlinear Distortions Estimation Method for Optical Fiber Transmission System by Yating Xiang, Ming Tang, Qiong Wu, Huibin Zhou, Bo Yong, Songnian Fu, Deming Liu

“…Experimental results obtained by using a 200 Gb/s 16 QAM DWDM system establish the accuracy of the proposed OSNR estimations method, with errors less than 1 dB. The nonlinear distortions were also measured under different simulation conditions, using a coherent optical OFDM system, and the results are in accordance with the expectations.…”
Get full text

Optical Properties of Iron Oxide Thin Films Prepared by Pulsed Laser Ablation Method by Rasha Hamid Ahmed

Get full text

Stress Direction Measurement Based on Polarization State in Optical Fibers Using the Quaternion Method by Zejia Huang, Chongqing Wu, Zhi Wang

Get full text

Optical Measurement Method for Monitoring High-Mass-Concentration Slurry Sprays: An Experimental Study by Walter Schaefer, Sabine Fleck, Manuel Haas, Tobias Jakobs

“…In this study, we present a basic idea for a robust optical measurement method for the practical monitoring of slurry sprays with high mass concentrations, as typically used in combustion processes. …”
Get full text

Comparing Methods for Pyrite Surface Area Measurement Through Optical, Aqueous, and Gaseous Approaches by Samantha Macchi, Martin Nemer, Melissa M. Mills, Melissa L. Meyerson, Hans W. Papenguth, John H. Taphouse, Noah B. Schorr

“…This work serves to help researchers choose a more fitting method for examining low surface area materials like FeS₂ and can easily be applied to other minerals for quantitative and qualitative surface area comparisons.…”
Get full text