- Novel Method Measuring Conjunctival Microvascular Blood Flow Velocity by Zoom-lens, Ultra-high-speed Camera Attached Slit-lamp Biomicroscope
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Kim HS, Kim DR, Yoon YC, Yang SW, Yoo YS, Whang WJ, Byun YS, Hwang HB, Na KS, Lee HS, Chung SH, Kim EC, Cho YK, Kim HS, Hwang HS
- KMID: 2547862
- J Korean Ophthalmol Soc.
- 2023 Nov;64(11):1001-1008.
- doi: 10.3341/jkos.2023.64.11.1001
Purpose: To introduce an intuitive method for measuring conjunctival microvascular blood flow velocity by imaging bulbar conjunctival microvessels using a slit-lamp biomicroscope equipped with a zoom lens and an ultra-high-speed... -
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- Comparison of Accuracy of Six Modern Intraocular Lens Power Calculation Formulas
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Yoon JH, Whang WJ
- KMID: 2546489
- Korean J Ophthalmol.
- 2023 Oct;37(5):380-386.
- doi: 10.3341/kjo.2023.0034
Purpose: To compare the accuracy of modern intraocular lens (IOL) power calculation formulas in predicting refractive outcomes after standard cataract surgery. Methods: The medical records of 203 eyes from 203 patients... -
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- Trends in Corneal Transplantation Revealed by KONOS and Health Insurance Review and Assessment Service Annual Reports
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Lee J, Lee SY, Yoon YC, Park SK, Whang WJ, Byun YS, Hwang HB, Na KS, Lee HS, Chung SH, Kim EC, Cho YK, Kim HS, Hwang HS
- KMID: 2542160
- J Korean Ophthalmol Soc.
- 2023 Apr;64(4):273-280.
- doi: 10.3341/jkos.2023.64.4.273
Purpose: To analyze trends in corneal transplantation surgery and determine the number of domestic and imported corneal grafts used in South Korea. Method: The total number of keratoplasties and number of... -
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- Assessment for Macular Thickness after Uncomplicated Phacoemulsification Using Optical Coherence Tomography
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Kim BJ, Ahn YJ, Oh HY, Choi SI, Yoo YS, Whang WJ, Byun YS, Lee My, Joo CK
- KMID: 2532485
- Korean J Ophthalmol.
- 2022 Aug;36(4):296-305.
- doi: 10.3341/kjo.2021.0171
Purpose: Macular edema including cystoid macular edema is one of the main causes of unfavorable visual outcomes after cataract surgery. The macular thickness and the occurrence of macular edema after... -
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- Preoperative Biometry and Effective Adding Power of the Multifocal Intraocular Lens
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Lee J, Whang WJ
- KMID: 2532514
- Ann Optom Contact Lens.
- 2022 Jun;21(2):61-66.
- doi: 10.52725/aocl.2022.21.2.61
Purpose: To calculate the length of near focus or effective adding power on the corneal plane after implantation of a diffractive multifocal intraocular lens (IOL). Methods: The study was designed as... -
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- Corneal Asphericity Variations in Korean Myopic Children
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Kim HS, Park SK, Whang WJ, Hwangm HS, Na KS
- KMID: 2532504
- Ann Optom Contact Lens.
- 2022 Mar;21(1):15-20.
- doi: 10.52725/aocl.2022.21.1.15
Purpose: Corneal asphericity (Q-value) represents the difference in curvature from center to periphery of the cornea. This study evaluated horizontal and vertical asymmetry in corneal asphericity in myopic children and... -
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- Comparison of Meibomian Gland Loss between Demodex-infested Group and Dry Eye Patients without Demodex Infestation
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Yoon YC, Cho SY, Park SK, Yoo YS, Whang WJ, Na KS, Kim EC, Kim HS, Hwang HS
- KMID: 2524932
- J Korean Ophthalmol Soc.
- 2022 Jan;63(1):1-9.
- doi: 10.3341/jkos.2022.63.1.1
Purpose: To compare the degree of meibomian gland drop-out associated with Demodex infestation using non-contact meibography. Methods: We performed noncontact meibography using an infrared digital camera on 24 adult subjects infested... -
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- Aberrations Using Zernike Polynomials and Contact Lens
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Whang WJ
- KMID: 2532538
- Ann Optom Contact Lens.
- 2021 Jun;20(2):47-51.
- doi: 10.52725/aocl.2021.20.2.47
Aberration refers to a phase difference in light caused by a variation in the refractive power. Zernike polynomials, the most widely used method for analyzing aberrations in the human eye,... -
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- Descemet Membrane Endothelial Keratoplasty after Penetrating Keratoplasty Graft Failure
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Son WY, Ha MJ, Whang WJ, Byun YS, Hwang HB, Na KS, Rho CR, Lee HS, Chung SH, Kim EC, Cho YK, Kim HS, Hwang HS
- KMID: 2516814
- J Korean Ophthalmol Soc.
- 2021 Jun;62(6):848-854.
- doi: 10.3341/jkos.2021.62.6.848
Purpose: To report a case of a successful secondary Descemet membrane endothelial keratoplasty in failed penetrating keratoplasty. Case summary: A 46-year-old male with keratoconus in both of his eyes underwent... -
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- Repeat Descemet Membrane Endothelial Keratoplasty after Descemet Membrane Endothelial Keratoplasty Graft Failure
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Kim GH, Ha MJ, Chang DJ, Whang WJ, Byun YS, Hwang HB, Na KS, Rho CR, Lee HS, Chung SH, Kim EC, Cho YK, Kim HS, Kim MS, Hwang HS
- KMID: 2515955
- J Korean Ophthalmol Soc.
- 2021 May;62(5):702-708.
- doi: 10.3341/jkos.2021.62.5.702
Purpose: To report a case of secondary Descemet membrane endothelial keratoplasty (DMEK) for graft failure after primary DMEK. Case summary: A 47-year-old female underwent primary DMEK in her left eye with... -
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- Usefulness of Refractive Measurement by Wavefront Aberrometer in Children
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Oh SE, Whang WJ, Park MR
- KMID: 2515951
- J Korean Ophthalmol Soc.
- 2021 May;62(5):680-687.
- doi: 10.3341/jkos.2021.62.5.680
Purpose: To compare the refractive measurements from a wavefront aberrometer, autorefractor, and retinoscopy after cycloplegia in evaluating the usefulness and validity of refractive measurements by a wavefront aberrometer in children. Methods:... -
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- Descemet Stripping Automated Endothelial Keratoplasty for Repeated Penetrating Keratoplasty Graft Failure
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Hwang GD, Yun HY, Ha MJ, Whang WJ, Chang DJ, Hwang HS, Na KS
- KMID: 2514255
- J Korean Ophthalmol Soc.
- 2021 Mar;62(3):394-399.
- doi: 10.3341/jkos.2021.62.3.394
Purpose: To report a case of Descemet stripping automated endothelial keratoplasty (DSAEK) for graft failure after re-penetrating keratoplasty (PK). Case summary: A 33-year-old man of Indian nationality who had developed right... -
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- Prediction of Effective Lens Position by Reference to the Preoperative Axial Length
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Kim GH, Whang WJ, Kim HS
- KMID: 2514244
- J Korean Ophthalmol Soc.
- 2021 Mar;62(3):308-314.
- doi: 10.3341/jkos.2021.62.3.308
Purpose: We derived optimal formulae permitting effective lens position (ELP) for patients differing in terms of their preoperative axial lengths as revealed by partial coherence interferometry. Methods: We included 736 eyes... -
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- Descemet Membrane Endothelial Keratoplasty to Treat Graft Failure after Descemet Stripping Endothelial Keratoplasty
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Oh SE, Ha MJ, Whang WJ, Byun YS, Hwang HB, Na KS, Rho CR, Lee HS, Chung SH, Kim EC, Cho YK, Kim HS, Kim MS, Hwang HS
- KMID: 2511297
- J Korean Ophthalmol Soc.
- 2020 Dec;61(12):1532-1537.
- doi: 10.3341/jkos.2020.61.12.1532
Purpose: We report a case of secondary Descemet membrane endothelial keratoplasty (DMEK) to treat graft failure after Descemet stripping endothelial keratoplasty (DSEK). Case summary: A 66-year-old female underwent DSEK of her... -
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- Scleral Fixation of Intraocular Lens and Retropupillary Fixation of Iris Claw Lens for Aphakic Eyes
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Kim JY, Park CH, Whang WJ, Na KS, Kim HS
- KMID: 2453015
- J Korean Ophthalmol Soc.
- 2019 Jul;60(7):643-653.
- doi: 10.3341/jkos.2019.60.7.643
PURPOSE: To compare the efficacy and complications of scleral fixation of posterior chamber intraocular lens (IOL) and retropupillary fixation of iris claw IOL for dislocated IOL or aphakia without sufficient... -
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- Meibomian Gland Dysfunction and Tear Lipid Layer Analysis after Cataract Surgery
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Oh JH, Park CH, Whang WJ, Na KS, Kim HS
- KMID: 2449704
- J Korean Ophthalmol Soc.
- 2019 Jun;60(6):519-527.
- doi: 10.3341/jkos.2019.60.6.519
PURPOSE: We report the clinical manifestations of dry eye syndrome after cataract surgery involving meibomian gland structure, meibomian gland function, and tear lipid layer analysis. METHODS: The clinical manifestations of dry... -
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- The Effect of Preoperative Corneal Asphericity on the Refractive Outcomes of Multifocal Intraocular Lens Implantation
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Beak JU, Shin HJ, Park CH, Whang WJ, Na KS, Kim HS
- KMID: 2431834
- J Korean Ophthalmol Soc.
- 2019 Jan;60(1):9-15.
- doi: 10.3341/jkos.2019.60.1.9
PURPOSE: To analyze the effects of preoperative corneal asphericity on the refractive outcomes of multifocal intraocular lens implantation by correlating Q-values on anterior corneal surfaces and the prediction errors after... -
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- Astigmatic Analysis before and after Surgical Excision of Limbal Dermoid: Functional Outcome
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Kim JH, Ahn YJ, Whang WJ, Park SH
- KMID: 2390074
- J Korean Ophthalmol Soc.
- 2017 Sep;58(9):1092-1098.
- doi: 10.3341/jkos.2017.58.9.1092
PURPOSE: To analyze the length and area of limbal dermoid invading the cornea and to evaluate the effects on visual acuity and astigmatism before and after surgery. METHODS: This retrospective study... -
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- Clinical Characteristics and Prognosis of Fuchs Dystrophy According to COL8A2 Gene Mutation Status
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Kim HA, Whang WJ, Lee JH, Chae H, Kim M, Kim MS
- KMID: 2376591
- J Korean Ophthalmol Soc.
- 2017 Apr;58(4):380-386.
- doi: 10.3341/jkos.2017.58.4.380
PURPOSE: To compare the clinical characteristics and prognosis of Fuchs dystrophy patients according to COL8A2 gene mutation status. METHODS: Eighty-one patients (162 eyes) initially diagnosed with Fuchs dystrophy from 1996 to... -
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- Corneal Collagen Crosslinking in Progressive Keratoconus
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Hong KE, Whang WJ, Chung SH, Joo CK
- KMID: 2357726
- J Korean Ophthalmol Soc.
- 2016 Nov;57(11):1714-1722.
- doi: 10.3341/jkos.2016.57.11.1714
PURPOSE: To report the clinical efficacy and safety of progressive keratoconic eyes in Korean patients treated with accelerated corneal cross-linking. METHODS: This retrospective study focused on progressive keratoconic eyes in Korean... -
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