Results 11 to 20 of about 1,050,353 (225)

Angle Kappa and its importance in refractive surgery [PDF]

open access: yesOman Journal of Ophthalmology, 2013
Angle kappa is the difference between the pupillary and visual axis. This measurement is of paramount consideration in refractive surgery, as proper centration is required for optimal results.
Majid Moshirfar   +2 more
doaj   +3 more sources

Angle Kappa is Not Correlated with Patient-Reported Outcomes After Multifocal Lens Implantation [PDF]

open access: yesClinical Ophthalmology
Xi Liu,1,2 Stephen J Hannan,3 Steven C Schallhorn,4,5 Julie M Schallhorn5,6 1Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Military Medical University), Chongqing, People’s Republic of China; 2Key Laboratory of Visual
Liu X   +3 more
doaj   +3 more sources

Evaluation of Visual Outcomes, Postoperative Angle Alpha, and Angle Kappa After Implantation of Isofocal Intraocular Lenses [PDF]

open access: yesClinical Ophthalmology
Ahmed Hassan Assaf,1,2 Hams Samy,2 Noha Fawky,2 Menna Ahmed Kamel1 1Department of Ophthalmology, Ain Shams University, Cairo, Egypt; 2Watany Eye Hospital, Cairo, EgyptCorrespondence: Ahmed Hassan Assaf, Ain Shams University, Abbassia, Cairo, Egypt, Email
Assaf AH, Samy H, Fawky N, Kamel MA
doaj   +4 more sources

Correlation of angle kappa and angle alpha on visual outcomes in eyes implanted with three types of multifocal intraocular lenses [PDF]

open access: yesScientific Reports
To evaluate the correlation between preoperative, postoperative, and change in angle kappa and alpha to visual outcomes following implantation of three multifocal intraocular lenses.
Robert Edward T. Ang   +3 more
doaj   +2 more sources

An Automatic Calibration Method for Kappa Angle Based on a Binocular Gaze Constraint

open access: yesSensors, 2023
Kappa-angle calibration shows its importance in gaze tracking due to the special structure of the eyeball. In a 3D gaze-tracking system, after the optical axis of the eyeball is reconstructed, the kappa angle is needed to convert the optical axis of the ...
Jiahui Liu, Jiannan Chi, Hang Sun
doaj   +3 more sources

Comparative analysis of preoperative and postoperative changes in photopic and mesopic angle kappa and angle alpha in cataract surgery [PDF]

open access: yesBMC Ophthalmology
Purpose To evaluate changes in angle kappa (κ) and angle alpha (α) under photopic and mesopic illumination before and after cataract surgery, and to analyze their correlations with ocular biometric parameters.
Yuxiang Hu   +3 more
doaj   +2 more sources

Evaluating the Impact of Angle Kappa on Effective Optical Zone in Kerato-Lenticule Extraction (KLEx) Surgery with Intraoperative Angle Kappa Adjustment [PDF]

open access: yesClinical Ophthalmology
Tsung-Hsien Tsai,1,2,* Erh-Tsan Lin,3,* Jui-Hung Hsu,3 Chi-Chin Sun1,2 1Department of Ophthalmology, Chang Gung Memorial Hospital, Keelung, Taiwan; 2School of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan; 3Department of ...
Tsai TH, Lin ET, Hsu JH, Sun CC
doaj   +1 more source

Analysis and comparison of factors influencing post-cataract surgery kappa angle changes

open access: yesBMC Ophthalmology
Purpose This study aims to investigate the factors influencing changes in the kappa angle following cataract surgery. Methods A total of 95 eyes undergoing cataract surgery were included in this study. Preoperative and postoperative ocular biometric data
Bingzhen Li   +5 more
doaj   +2 more sources

Angle Kappa and angle Alpha agreement between Pentacam Scheimpflug system, swept source optical coherence tomography and ray-tracing aberrometry

open access: yesPhotodiagnosis and Photodynamic Therapy
Purpose: To compare the consistency of Pentacam Scheimpflug system (Pentacam® HR), ray-tracing aberrometry (iTrace), and swept source optical coherence tomography (IOLMaster 700) measurements for Angle Kappa and angle Alpha.
Wanping Zhang   +5 more
doaj   +3 more sources

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