1.Case Report: Femtosecond Laser-Assisted Small Incision Deep Lamellar Endothelial Keratoplasty.
Dong Hoon LEE ; Tae Young CHUNG ; Eui Sang CHUNG ; Dimitri T AZAR
Korean Journal of Ophthalmology 2008;22(1):43-48
PURPOSE: To report two cases of femtosecond laser-assisted small incision deep lamellar endothelial keratoplasty (DLEK) for patients with corneal endothelial decompensation by Fuchs dystrophy and glaucoma METHODS: Femtosecond laser (IntraLase(R); IntraLase Corp., Irvine, CA) with 15 kHz of repetition rate, was used for a 9.5 mm diameter by 400 micrometer thickness donor corneal lamellar dissection. RESULTS: In Case 1, the graft was clear and compact without interface haze, Orbscan showed smooth and regular corneal surface, specular microscopy was unremarkable without sign of corneal endothelial damage, and Optical coherence tomography showed uniform graft well attached to recipient stroma with minimal interface reflection at 2 months postoperation. In Case 2, the graft was clear and compact with minimal interface haze at 1 month postoperation. Femtosecond laser-assisted small incision DLEK was safe and technically feasible in our cases; however, further evaluation is required to determine long-term effects.
Aged
;
Aged, 80 and over
;
Corneal Edema/*surgery
;
Corneal Surgery, Laser/*methods
;
Corneal Topography
;
Corneal Transplantation/*methods
;
Endothelium, Corneal/*transplantation
;
Female
;
Fuchs' Endothelial Dystrophy/*surgery
;
Humans
;
Male
;
Tomography, Optical Coherence
;
Visual Acuity
2.Case Report: Femtosecond Laser-Assisted Small Incision Deep Lamellar Endothelial Keratoplasty.
Dong Hoon LEE ; Tae Young CHUNG ; Eui Sang CHUNG ; Dimitri T AZAR
Korean Journal of Ophthalmology 2008;22(1):43-48
PURPOSE: To report two cases of femtosecond laser-assisted small incision deep lamellar endothelial keratoplasty (DLEK) for patients with corneal endothelial decompensation by Fuchs dystrophy and glaucoma METHODS: Femtosecond laser (IntraLase(R); IntraLase Corp., Irvine, CA) with 15 kHz of repetition rate, was used for a 9.5 mm diameter by 400 micrometer thickness donor corneal lamellar dissection. RESULTS: In Case 1, the graft was clear and compact without interface haze, Orbscan showed smooth and regular corneal surface, specular microscopy was unremarkable without sign of corneal endothelial damage, and Optical coherence tomography showed uniform graft well attached to recipient stroma with minimal interface reflection at 2 months postoperation. In Case 2, the graft was clear and compact with minimal interface haze at 1 month postoperation. Femtosecond laser-assisted small incision DLEK was safe and technically feasible in our cases; however, further evaluation is required to determine long-term effects.
Aged
;
Aged, 80 and over
;
Corneal Edema/*surgery
;
Corneal Surgery, Laser/*methods
;
Corneal Topography
;
Corneal Transplantation/*methods
;
Endothelium, Corneal/*transplantation
;
Female
;
Fuchs' Endothelial Dystrophy/*surgery
;
Humans
;
Male
;
Tomography, Optical Coherence
;
Visual Acuity
3.A Case of Crystalline Keratopathy in Monoclonal Gammopathy of Undetermined Significance (MGUS).
Hyun KOO ; Doo Hwan OH ; Yeoun Sook CHUN ; Jae Chan KIM
Korean Journal of Ophthalmology 2011;25(3):202-205
A 62-year-old female visited our clinic with progressively decreased vision in both eyes beginning 12 years prior. Idiopathic corneal opacity in all layers of the cornea was found in both eyes. One year later, we performed penetrating keratoplasty on the undiagnosed right eye. During post-surgical follow-up, corneal edema and stromal opacity recurred, and penetrating keratoplasty was performed two more times. The patient's total serum protein level, which had previously been normal, was elevated prior to the final surgery. She was diagnosed with monoclonal gammopathy of undetermined significance. We made a final diagnosis of monoclonal gammopathy-associated crystalline keratopathy after corneal biopsy. Monoclonal gammopathy-associated crystalline keratopathy is difficult to diagnose and may lead to severe visual loss. A systemic work-up, including serologic tests like serum protein or cholesterol levels, is needed in patients with unexplainable corneal opacity.
Corneal Edema/etiology/*metabolism/physiopathology/surgery
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Corneal Neovascularization/etiology/*metabolism/physiopathology/surgery
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Corneal Opacity/etiology/*metabolism/physiopathology/surgery
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Crystallins/*metabolism
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Female
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Humans
;
Keratoplasty, Penetrating
;
Microscopy, Electron
;
Middle Aged
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Monoclonal Gammopathy of Undetermined Significance/*complications/pathology
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Reoperation
;
Visual Acuity
4.A Case of Corneal Chemical Injury by High-dose Ethanol during Orbital Wall Fracture Repair
Jong Young LEE ; Jung Yeol CHOI ; Jinho JEONG
Journal of the Korean Ophthalmological Society 2019;60(4):374-379
PURPOSE: To report a case of chemical injury of the cornea caused by high-dose ethanol during orbital wall fracture repair. CASE SUMMARY: A 56-year-old male presented with pain after blowout fracture repair surgery. During the surgery, 2% hexethanol solution (2% chlorhexidine and 72% ethanol mixture), which was used for disinfection of the face, flowed into the left eye. Conjunctival injection in the left limbus, a large corneal epithelial defect, and severe stromal edema were subsequently observed. The patient was treated with topical antibiotics, steroids, and autologous serum eye drops. After 1 week, the corneal epithelial defect was improved, but at the second month of therapy, recurrent corneal erosion with deterioration of the endothelial cell function occurred. Anterior stromal puncture and laser keratectomy were performed. The corneal epithelial defect and erosion improved, but the endothelial cell density was severely decreased. CONCLUSIONS: The 2% hexethanol solution is usually used for preoperative skin disinfection, but it contains a high concentration of ethanol. The surgeon should be aware that high concentrations of ethanol may result in severe corneal damage, including corneal endothelial dysfunction and limbal cell deficiency.
Anti-Bacterial Agents
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Chlorhexidine
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Cornea
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Corneal Injuries
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Corneal Surgery, Laser
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Disinfection
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Edema
;
Endothelial Cells
;
Ethanol
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Humans
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Male
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Middle Aged
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Ophthalmic Solutions
;
Orbit
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Punctures
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Skin
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Steroids
5.Filtering Surgery in Aphakia and Pseudophakia.
Youn Seong CHO ; No Hoon KWAK ; Nam Ho BAEK
Journal of the Korean Ophthalmological Society 1993;34(2):135-140
Aphakic or pseudophakic glau-oma is known to be at high risk for failure after filtration surgery. The authors retrospectively investigated the results of trabeculectomy in 14 eyes of 14 patients with glaucoma, seven aphakic and seven pseudophakic eyes, which were followed from six months to three years with an average ot 16.5 months. A conventional trabeculectomy without using antifibrotic agents was performed in all the eyes. The site of conjunctival incision was prepared on the virgin area of the conjunctiva; 8 superonasal, 4 inferonasal and 2 inferotemporal approaches. An average postoperative intraocular pressure reduction was 13.4 mmHg. The number of medications decreased in 11 eyes. A spontaneously developed functioning bleb was found in seven eyes. In other four eyes, the filtering bleb was formed with an aid of massage or needling. The remallllllg three eyes did not show a functioning bleb. Postoperative complications included hyphema in 3 eyes, overfiltration in 2 eyes, choroidal detachment in 1 eye, corneal edema in 1 eye and endophthalmitis in 1 eye.
Aphakia*
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Blister
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Choroid
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Conjunctiva
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Corneal Edema
;
Endophthalmitis
;
Filtering Surgery*
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Glaucoma
;
Humans
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Hyphema
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Intraocular Pressure
;
Massage
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Postoperative Complications
;
Pseudophakia*
;
Retrospective Studies
;
Trabeculectomy
6.A Comparison of Posterior Lamellar Keratoplasty Modalities: DLEK vs. DSEK.
Chan Hui YI ; Dong Hoon LEE ; Eui Sang CHUNG ; Tae Young CHUNG
Korean Journal of Ophthalmology 2010;24(4):195-200
PURPOSE: To compare clinical outcomes after deep lamellar endothelial keratoplasty (DLEK) with Descemet stripping endothelial keratoplasty (DSEK) performed as initial cases by a single surgeon. METHODS: Sixteen patients with corneal endothelial were enrolled. Eight patients (8 eyes) underwent DLEK and 8 patients (8 eyes) DSEK. We measured uncorrected visual acuity, best corrected visual acuity (BCVA), manifest refraction, corneal endothelial count, interface opacity via Schiempflug imaging, and contrast sensitivity, as well as tracked postoperative complications over the first postoperative year. RESULTS: Primary graft failure occurred in two DLEK cases and one DSEK case, all of which were excluded for further analysis. The average 12-month postoperative BCVA was 20/70 in the DLEK group and 20/50 in the DSEK group, with the difference not statistically significant. No significant differences were identified between the 2 groups in terms of mean spherical equivalent and refractive astigmatism, although individuals in the DSEK group tended toward hyperopia. The average endothelial cell count at postoperative month 12 was 1849+/-494 in the DLEK group and 1643+/-417 cells/mm2 in the DSEK group, representing cell losses of 26.2% and 31.9%, respectively. No significant differences in endothelial cell count or endothelial cell loss were observed between groups. Early postoperative donor disc dislocation occurred in two eyes after DLEK and one eye after DSEK. Interface opacities and contrast sensitivities were similarly not significantly different between groups. CONCLUSIONS: No significant differences in any assessed clinical outcome were observed between individuals undergoing DLEK and DSEK, when performed as initial cases by a single surgeon.
Aged
;
Cell Count
;
Corneal Edema/pathology/*surgery
;
Descemet Stripping Endothelial Keratoplasty/*methods
;
Endothelium, Corneal/pathology
;
Follow-Up Studies
;
Humans
;
Microscopy, Acoustic
;
Middle Aged
;
Prospective Studies
;
Treatment Outcome
;
Visual Acuity
7.A Retained Lens Fragment Induced Anterior Uveitis and Corneal Edema 15 Years after Cataract Surgery.
Hae Min KANG ; Jong Woon PARK ; Eun Jee CHUNG
Korean Journal of Ophthalmology 2011;25(1):60-62
A 60-year-old male was referred to the ophthalmologic clinic with aggravated anterior uveitis and corneal edema despite the use of topical and systemic steroids. He had undergone cataract surgery in both eyes 15 years previous. Slit lamp examinations revealed a retained lens fragment in the inferior angle of the anterior chamber, with severe corneal edema and mild anterior uveitis. The corneal edema and uveitis subsided following surgical extraction of the lens fragment. That a retained lens fragment caused symptomatic anterior uveitis with corneal edema 15 years after an uneventful cataract surgery is unique. A retained lens fragment should be considered as one of the causes of anterior uveitis in a pseudophakic patient.
Cataract Extraction/*adverse effects
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Corneal Edema/*etiology/*pathology
;
Humans
;
Lens, Crystalline/*pathology/surgery
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Male
;
Middle Aged
;
Postoperative Complications/pathology/surgery
;
Pseudophakia/pathology
;
Reoperation
;
Severity of Illness Index
;
Uveitis, Anterior/*etiology/*pathology
8.Development of Toxic Anterior Segment Syndrome Immediately after Uneventful Phaco Surgery.
Jin Seok CHOI ; Kyung Hwan SHYN
Korean Journal of Ophthalmology 2008;22(4):220-227
PURPOSE: We report on 15 cases of suspected toxic anterior segment syndrome after uneventful phaco surgery. METHODS: We retrospectively reviewed the charts of patients who had developed toxic anterior segment syndrome (TASS) after uneventful phacoemulsification for senile cataracts between April and December of 2005. Clinical features and all possible causes were investigated including irrigating solutions or drugs, surgical instruments or intraocular lenses, sterilization techniques for instruments, or any other accompanying disease. RESULTS: The patients consisted of 2 males and 13 females with an average age of 64.7+/-10.9 years. Five different surgeons had performed their phaco surgeries. No abnormal preoperative or operative findings were reported. Nevertheless, all 15 patients developed a moderate degree of corneal edema. Ordinary treatments were not helpful. We suspect that lack of sterilization resulted in the development of the syndrome, because after ethylene oxide gas sterilization was replaced with autoclaving, no such incidents have occurred. CONCLUSIONS: Toxic anterior segment syndrome requires special attention and thorough management, including sterilization of reused surgical instruments.
Aged
;
Aged, 80 and over
;
Anterior Eye Segment/*pathology
;
Corneal Edema/*etiology/pathology/surgery
;
Endophthalmitis/*etiology/pathology/surgery
;
Endotoxins/adverse effects
;
Female
;
Humans
;
Keratoplasty, Penetrating
;
*Lens Implantation, Intraocular
;
Male
;
Middle Aged
;
*Phacoemulsification
;
*Postoperative Complications
;
Retrospective Studies
;
Syndrome