1.Comparison of the Stability Between Three-piece and Single-piece Aspheric Intraocular Lenses.
Sung Wan SON ; Jung Won SEO ; Seong Joo SHIN ; Sung Kun CHUNG
Journal of the Korean Ophthalmological Society 2010;51(12):1584-1589
PURPOSE: The goal of the present study was to compare the stability of the 3-piece (Tecnis ZA9003) and single-piece (AcrySof IQ) aspheric intraocular lenses (IOL) by testing decentration, tilt, anterior chamber depth, and refraction. METHODS: The subjects of this study consisted of 101 eyes who had undergone cataract surgeries with a 3-piece aspheric IOL (54 eyes) and with a single-piece aspheric IOL (47 eyes). The decentration, tilt, anterior chamber depth, and refraction were measured on postoperative day 1, 1 month, and 2 months, using an anterior eye segment analysis system (EAS-1000, Nidek, Japan). RESULTS: There was a statistically significant difference in the decentration on the postoperative day 1 (p = 0.04). However, there was no statistically significant difference on postoperative 1 month (p = 0.15) and 2 months (p = 0.13). There was no statistically significant difference in the tilt on postoperative day 1, 1 month, and 2 months. There was no statistically significant difference in the anterior chamber depth on postoperative day 1, 1 month, and 2 months. There was a statistically significant difference in the refraction on postoperative day 1 (p = 0.03). However, there was no statistically significant difference on postoperative 1 month (p = 0.07) and 2 months (p = 0.07). CONCLUSIONS: There was no statistically significant difference in the decentration, anterior chamber depth, and refraction between the 3-piece and single-piece aspheric IOL. Therefore, there is no difference between the 3-piece and single-piece aspheric IOL in the capsular bag stability until 2 months postoperatively.
Anterior Chamber
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Anterior Eye Segment
;
Cataract
;
Eye
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Lenses, Intraocular
2.Surgical Repair of Canalicular Defects and Congenital Eyelid Colobomas Associated with Tessier No. 3 Cleft.
Sung Wook PARK ; Nam Ju KIM ; Ho Kyung CHOUNG ; Sang In KHWARG
Journal of the Korean Ophthalmological Society 2010;51(11):1520-1524
PURPOSE: To report a single case of surgical repair of the canalicular defects and congenital eyelid colobomas associated with Tessier No. 3 craniofacial cleft. CASE SUMMARY: A one-month-old girl presented with eyelid colobomas and discharges from the eyes. The patient was diagnosed with a Tessier No. 3 craniofacial cleft with bilateral lower eyelid colobomas medial to the puncta. At the age of 55 months, examination under general anesthesia revealed mid-canalicular obstructions in both lower canaliculi. After pentagonal excision of eyelid colobomas in the left upper and both lower eyelids, both ends of the canaliculi were found at the cut edge of the lower eyelids. After the repair of canalicular defects and bilateral nasolacrimal duct silicone tube intubation, the primary closure of the eyelid defect was performed layer by layer. Although there was no subjective improvement of epiphora in the left eye, a subjective improvement of epiphora in the right eye was achieved, and tear meniscus height in the right eye was halved. Additionally, the eyelid colobomas were cosmetically well repaired at postoperative 6 weeks. The patient still had mild tearing symptoms, but did not complain any longer of discharge at postoperative 4 months. CONCLUSIONS: Tessier No. 3 craniofacial cleft with eyelid colobomas can be associated with canalicular defects and nasolacrimal duct obstructions. Surgical repair of the canalicular defects associated with eyelid colobomas should be considered to achieve a functional recovery of the lacrimal drainage system.
Anesthesia, General
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Coloboma
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Drainage
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Eye
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Eyelids
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Humans
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Intubation
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Lacrimal Apparatus Diseases
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Nasolacrimal Duct
;
Silicones
3.The Efficacy of Fibrin Glue in Surgical Treatment of Conjunctivochalasis With Epiphora.
Kiyup NAM ; Young Joon JO ; Sung Bok LEE
Journal of the Korean Ophthalmological Society 2010;51(4):498-503
PURPOSE: To investigate the efficacy of fibrin glue used in conjunctival resection for conjunctivochalasis with epiphora. METHODS: Twenty-three patients (42 eyes) with conjunctivochalasis without nasolacrimal duct obstruction underwent conjunctival resection using either absorbable sutures (11 patients, 20 eyes, Group 1) or fibrin glue (12 patients, 22 eyes, Group 2) to attach the conjunctiva to the sclera. Outcomes recorded were improvement of epiphora, postoperative discomfort, and operation time. Postoperative discomfort was analyzed only in one eye (right eye) in case that the both eyes were operated. RESULTS: Epiphora completely improved in 6 eyes (30%) in Group 1 and 8 eyes (36.4%) in Group 2, partially improved in 9 eyes (45%) and 8 eyes (36.4%), and did not improved in 5 eyes (25%) and 6 eyes (27.2%), respectively (p=1.000). On the first day postoperatively, postoperative eye discomfort developedin 7 eyes (63.6%) in Group 1 and 5 eyes (41.7%) in Group 2 (p=0.414). Throughout the following week, the discomfort lasted in 6 eyes (54.5%) in Group 1 and 1 eye (13.6%) in Group 2 (p=0.027). The mean operation time was 25.0 (+/-2.6) minutes in Group 1 and 12.0 (+/-2.4) minutes in Group 2 (p<0.001). CONCLUSIONS: The success rates were similar in the two groups. However, the use of fibrin glue significantly reduces the postoperative discomfort and the operation time. Therefore, the use of fibrin glue in conjunctival resection of conjunctivochalasis seems to be an effective method.
Conjunctiva
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Eye
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Fibrin
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Fibrin Tissue Adhesive
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Humans
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Lacrimal Apparatus Diseases
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Nasolacrimal Duct
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Sclera
;
Sutures
4.Comparison of Anterior Chamber Parameter and Refractive Change between Three-Piece and Single-Piece Aspheric Intraocular Lenses.
Hye Sun KIM ; Dong Min LEE ; Ji Min AHN ; Eung Kweon KIM ; Tae Im KIM
Journal of the Korean Ophthalmological Society 2012;53(12):1789-1793
PURPOSE: To compare the anterior chamber depth (ACD), anterior chamber volume (ACV), anterior chamber angle (ACA) and refractive change after cataract surgery between 3-piece and 1-piece aspheric intraocular lens (IOL) implantation. METHODS: The present study consisted of 16 patients (25 eyes) having 3-piece aspheric Tecnis(R) ZA9003 IOL and 21 patients (30 eyes) having 1-piece aspheric Tecnis(R) ZCB00 IOL. The ACD, ACV, and ACA were measured using an anterior eye segment analysis system (Pentacam, Oculus, Wetzlar, Germany) preoperatively and postoperatively 1 week and 1 month. Refractive outcomes were evaluated using an autokeratometer. RESULTS: When comparing the 3-piece (Tecnis(R) ZA9003) and 1-piece (Tecnis(R) ZCB00) IOL with the same optic, ACD, ACV, and AVA increased significantly after cataract surgery. The 1-piece IOL showed deeper ACD than the 3-piece IOL at postoperative 1 week and 1 month. Postoperative refraction showed slight myopic shift compared with target diopter, but was stable in both groups. CONCLUSIONS: There was significant increase in ACD, ACV, and ACA after cataract surgery in both IOL-inserted groups. Results showed stable refraction after cataract surgery in both groups. Consideration of the A-constant will be needed because of myopic change with the 1-piece IOL.
Anterior Chamber
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Anterior Eye Segment
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Cataract
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Humans
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Lenses, Intraocular
5.Comparison of Anterior Chamber Parameter and Refractive Change between Three-Piece and Single-Piece Aspheric Intraocular Lenses.
Hye Sun KIM ; Dong Min LEE ; Ji Min AHN ; Eung Kweon KIM ; Tae Im KIM
Journal of the Korean Ophthalmological Society 2012;53(12):1789-1793
PURPOSE: To compare the anterior chamber depth (ACD), anterior chamber volume (ACV), anterior chamber angle (ACA) and refractive change after cataract surgery between 3-piece and 1-piece aspheric intraocular lens (IOL) implantation. METHODS: The present study consisted of 16 patients (25 eyes) having 3-piece aspheric Tecnis(R) ZA9003 IOL and 21 patients (30 eyes) having 1-piece aspheric Tecnis(R) ZCB00 IOL. The ACD, ACV, and ACA were measured using an anterior eye segment analysis system (Pentacam, Oculus, Wetzlar, Germany) preoperatively and postoperatively 1 week and 1 month. Refractive outcomes were evaluated using an autokeratometer. RESULTS: When comparing the 3-piece (Tecnis(R) ZA9003) and 1-piece (Tecnis(R) ZCB00) IOL with the same optic, ACD, ACV, and AVA increased significantly after cataract surgery. The 1-piece IOL showed deeper ACD than the 3-piece IOL at postoperative 1 week and 1 month. Postoperative refraction showed slight myopic shift compared with target diopter, but was stable in both groups. CONCLUSIONS: There was significant increase in ACD, ACV, and ACA after cataract surgery in both IOL-inserted groups. Results showed stable refraction after cataract surgery in both groups. Consideration of the A-constant will be needed because of myopic change with the 1-piece IOL.
Anterior Chamber
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Anterior Eye Segment
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Cataract
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Humans
;
Lenses, Intraocular
6.Decentration, Tilt and Anterior Chamber Depth: Aspheric vs Spheric Acrylic Intraocular Lens.
Ja Young LEE ; Seung Hee LEE ; Sung Kun CHUNG
Journal of the Korean Ophthalmological Society 2009;50(6):852-857
PURPOSE: To compare the decentration, tilt and anterior chamber depth between aspheric AcrySof(R) IQ IOL (SN60WF) and spheric AcrySof(R) Natural IOL (SN60AT). METHODS: The subjects of this study consisted of 22 patients (26 eyes) using an aspheric AcrySof(R) IQ IOL and 26 patients (31 eyes) using spheric AcrySof(R) Natural IOL. All lenses were inserted into the capsular bag after 5 mm continuous curvilinear capsulorhexis and phacoemulsification. The decentration, tilt and anterior chamber depth of both IOLs were measured on the 1st, 30th and 60th postoperative day using an anterior eye segment analysis system (Scheimpflug camera, EAS-1000, Nidek, Japan). RESULTS: There was no statistically significant difference in the decentration between the IQ IOL and Natural IOL on the 1st (p=0.05), 30th (p=0.09) and 60th (p=0.06) postoperative day. There was a statistically significant difference in tilt between IQ IOL and Natural IOL on the 1st (p=0.000053) and 30th (p=0.018) postoperative day. However, there was no statistically significant difference in tilt on the 60th postoperative day (p=0.05). The anterior chamber depth of IQ IOL was decreased, but was not statistically significant on the 1st (p=0.10), 30th (p=0.07) or 60th (p=0.06) postoperative day. CONCLUSIONS: There were no significant differences between AcrySof(R) IQ IOL and AcrySof(R) Natural IOL in decentration, tilt or anterior chamber depth, showing that posterior aspheric surface causes little effect on the IOL stability.
Anterior Chamber
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Anterior Eye Segment
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Capsulorhexis
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Humans
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Lenses, Intraocular
;
Phacoemulsification
7.The Change of Eyebrow Position After Upper Lid Blepharoplasty in Patients With Dermatochalasis.
Journal of the Korean Ophthalmological Society 2009;50(8):1141-1145
PURPOSE: To evaluate whether upper eyelid blepharoplasty causes eyebrow position change in patients with or without brow ptosis. METHODS: We analyzed the photographic records of 28 patients 53 eyes with dermatochalasis who had undergone upper eyelid blepharoplasty. Brow-pupil, brow-lid margin, lid margin-pupil, brow-lateral canthus, and brow-medial canthus distances were measured, and then the proportions of medial canthus-nasal alar were taken. Preoperative and postoperative measurements were compared. RESULTS: After blepharoplasty, no one in the group without brow ptosis developed new brow ptosis. In the group with brow ptosis, only one patient felt a significant change in brow position after blepharoplasty. In both groups, the distance between the eyebrow and the lid margin decreased by similar amounts. There was no change in the upper eyelid margin position after blepharoplasty. CONCLUSIONS: In patients with dermatochalasis, upper eyelid blepharoplasty caused a lowering of the eyebrow without a change in the eyelid margin. It is important to evaluate the brow ptosis preoperatively and excise the correct amount of excess skin to avoid aggravation of brow ptosis.
Blepharoplasty
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Eye
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Eyebrows
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Eyelids
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Humans
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Skin
;
Succinates
8.The Change of Eyebrow Position After Upper Lid Blepharoplasty in Patients With Dermatochalasis.
Journal of the Korean Ophthalmological Society 2009;50(8):1141-1145
PURPOSE: To evaluate whether upper eyelid blepharoplasty causes eyebrow position change in patients with or without brow ptosis. METHODS: We analyzed the photographic records of 28 patients 53 eyes with dermatochalasis who had undergone upper eyelid blepharoplasty. Brow-pupil, brow-lid margin, lid margin-pupil, brow-lateral canthus, and brow-medial canthus distances were measured, and then the proportions of medial canthus-nasal alar were taken. Preoperative and postoperative measurements were compared. RESULTS: After blepharoplasty, no one in the group without brow ptosis developed new brow ptosis. In the group with brow ptosis, only one patient felt a significant change in brow position after blepharoplasty. In both groups, the distance between the eyebrow and the lid margin decreased by similar amounts. There was no change in the upper eyelid margin position after blepharoplasty. CONCLUSIONS: In patients with dermatochalasis, upper eyelid blepharoplasty caused a lowering of the eyebrow without a change in the eyelid margin. It is important to evaluate the brow ptosis preoperatively and excise the correct amount of excess skin to avoid aggravation of brow ptosis.
Blepharoplasty
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Eye
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Eyebrows
;
Eyelids
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Humans
;
Skin
;
Succinates
9.Long-Term Changes in Tilt, Decentration and Anterior Chamber Depth After Implantable Collamer Lens Insertion.
Yeon Woong CHUNG ; Yong Soo BYUN ; Sung Kun CHUNG
Journal of the Korean Ophthalmological Society 2011;52(2):157-162
PURPOSE: To evaluate the stability of implantable collamer lens (ICL, Staar Surgical AG, Niau, Switzerland) by comparing changes of tilt, decentration and anteroir chamber depth after ICL implantation during 1 year. METHODS: The results of 8 high myopic patients (16 eyes) that had received ICL implantation were retrospectively studied. Tilt and decentration of ICL were measured using an anterior eye segment analysis system (Scheimpflug camera, EAS-1000, Nidek, Japan). Anterior chamber depth was measured in both eyes preoperatively and postoperatively by Scheimpflug camera. The follow-up period was 1 year. RESULTS: Tilt was 1.90 +/- 1.23degrees, 1.75 +/- 0.80degrees, 1.64 +/- 0.86degrees, 2.08 +/- 1.33degrees (p = 0.36) and decentration were 0.04 +/- 0.01 mm, 0.03 +/- 0.01 mm, 0.03 +/- 0.02 mm, 0.04 +/- 0.02 mm (p = 0.59) at 1 week, 1 month, 6 months and 1 year respectively. Tilt and decentration showed no significant change after ICL implantation. The average anterior chamber depth was 2.85 +/- 0.26 mm preoperatively, and 2.17 +/- 0.39 mm, 2.06 +/- 0.31 mm, 2.06 +/- 0.34 mm, 2.04 +/- 0.35 mm at 1 week, 1 month, 6 months and 1 year respectively. Anterior chamber depth became narrow after ICL implantation (p = 0.02), but showed no significant narrowing postoperatively (p = 0.08). CONCLUSIONS: The IOL position remained stable, with no significant changes for an extended period of tilt, decentration, or anterior chamber depth after ICL implantation.
Anterior Chamber
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Anterior Eye Segment
;
Eye
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Follow-Up Studies
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Humans
;
Retrospective Studies
10.Location of the Tube Tip in the Anterior Chamber and Change in Corneal Endothelium after Ahmed Valve Implantation.
Won Hyuk OH ; Tae Woo KIM ; Ki Ho PARK ; Dong Myung KIM
Journal of the Korean Ophthalmological Society 2013;54(3):469-474
PURPOSE: To evaluate the impact of location of a silicone tube tip in the anterior chamber on corneal endothelium after Ahmed glaucoma valve implantation. METHODS: We measured the distance from the tip of a silicone tube in the anterior chamber to the posterior surface of the cornea by anterior segment optical coherence tomography (OCT) in 24 eyes of 21 patients who underwent Ahmed glaucoma valve implantation. All surgeries were performed by a single surgeon. The corneal endothelial cells of central, superior, superotemporal, and superonasal area of the cornea were examined by specular microscope before and after surgery. RESULTS: The distance from the tip of the silicone tube in the anterior chamber to the posterior surface of the cornea and the corneal endothelium were measured at 19.2 +/- 11.8 months (2.8-41.2 months) after surgery. At the central corneal area, a statistically significant decrease in the number of corneal endothelial cells (2278 +/- 565/mm2 vs. 2177 +/- 529/mm2, p = 0.043) after surgery was observed, but no relationship was found between the amount of decrease and distance from the tip to the posterior surface of the cornea. At the superotemporal corneal area where the tip of the silicone tube was located in the anterior chamber, there was more significant loss of corneal endothelial cells than in the other areas after surgery (p = 0.006). Moreover, the amount of endothelial cell loss at the superotemporal area was negatively correlated to the distance from the tip to the posterior surface of the cornea (partial correlation coefficient by time -0.558, p = 0.031). CONCLUSIONS: To minimize the loss of corneal endothelial cells after Ahmed glaucoma valve implantation, ensuring a sufficient distance from the tip of the silicone tube to the posterior surface of the cornea is important.
Anterior Chamber
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Cornea
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Endothelial Cells
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Endothelium, Corneal
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Eye
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Glaucoma
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Humans
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Silicones
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Tomography, Optical Coherence