1.Ocular Dominance Determined by Near Point of Convergence Test in Intermittent Exotropia.
Jung Hoon HAN ; Dong Seob KIM ; Jung Chul SHIN
Journal of the Korean Ophthalmological Society 2000;41(7):1592-1596
This study was designed to validate the usefulness of the near point of convergence(NPC)test in determination of dominant & non-domnant eyes in intermittent exotropia patients. We performed NPC test in 36 intermittent exotrpic patients, and then, determined the non-dominant eye which deviated outward beyond the NPC. The dominant eyes determined by the NPC were compared to those that were determined by amblyopia, sensory fusion and photophobia. Best corrected visual acuity was used to divide patients into two groups : 26 patients without amblyopia, and 10 with amblyopia. Among the amblyopia group, if the eyes with better visual acuity were taken as dominant eyes, then eight(80%)cases were identical with the NPC test and two(20%)cases were different. Ten patients had sensory anomaly, and among then, nine(90%)cases were identical with the NPC test and one(10%)case was different. Twenty six(64%)patients had photophobia in one eye and all(100%)cases were identical with the NPC test. In intermittent exotropia, determination of dominant eye by the NPC test showed high coincidence with other tests. Therefore, we suggest that the NPC test is an easy and accurate method in determining either the dominant or non-dominant eye for surgery.
Amblyopia
;
Dominance, Ocular*
;
Exotropia*
;
Humans
;
Photophobia
;
Visual Acuity
2.Clinical observation and treatment of fracture-dislocation of talus.
Dong Chul LEE ; Se Dong KIM ; Hae Hoon JUNG
Yeungnam University Journal of Medicine 1992;9(2):302-311
Talus is an important structure of the ankle joint and its function is critical for ambulation and weight bearing. The talus fracture is rare, but the complications of fracture and dislocation are serious and resulting in avascular necrosis, osteoarthritis. So its treatment is carefully considered at initial status. Authors reviewed 11 cases of fracture and dislocation of the talus treated at Yeungnam university hospital from 1984 to 1991. The longest follow up was 8 years and shortest, 1 years. The results were as follows. 1. There were all males, the average age was 30 years old. 2. The most common cause was fall down (8 cases), and next traffic accident (2 cases), sports injury (1 case). 3. According to Marti-Weber classification, 1 case was type I, 1 in type II, 4 in type III and 5 in type IV. 4. The method of treatment were open reduction and internal fixation in 6 cases, the others were closed reduction in 5 cases. 5. Final results (by Hawkins grading system) were as follows, 3 cases were excellent, 4 cases were good, 1 case was fair and 3 cases were poor. 6. Complications were AVN in 2 cases, degenerative arthritis in 8 cases, malunion in 1 case. 7. The range of motion of the ankle joint was relatively preserved (74%), but in the subtalar joint it was decreased (43%)
Accidents, Traffic
;
Ankle Joint
;
Athletic Injuries
;
Classification
;
Dislocations
;
Follow-Up Studies
;
Humans
;
Male
;
Methods
;
Necrosis
;
Osteoarthritis
;
Range of Motion, Articular
;
Subtalar Joint
;
Talus*
;
Walking
;
Weight-Bearing
3.A Clinical Results of Combined Vitrectomy, Cataract Extraction, and Posterior Chamber Intraocular Lens Implantation.
Chul Gu KIM ; Jong Hoon LEE ; Yeon Chul JUNG
Journal of the Korean Ophthalmological Society 1999;40(2):437-444
Thirty eyes of thirty patients with coexisting cataract and vitreoretinal disease underwent combined cataract extraction, pars plana vitrectomy and posterior chamber intraocular lens implantaion.Surgical procedures of cataract extraction included phacoemulsification(14 eyes), pars plana lensectomy(11 eyes) and extracapsular lens placed in the capsular bag in 19 eyes following phacoemulsification or extracapsular cataract extraction. Eleven eyes had sulcus fixation of posterior chamber lens following lensectomy.Postoperatviely visual acuity improved in 26 eyes(86.7%), unchanged in 3 eyes(10%) and decreased in 1 eye(3.3%). Final visual acuity was 20/200 or better in 26 eyes(86.75), and 20/40 or better in 11 eyes(36.7%). Postoperative complications included rhegmatogenous retinal detachment with proliferative vitreoretinopathy, neovascular glaucoma and endophthalmitis.Pars plana vitrectomy combined with cataract extraction with posterior chamber intraocular lens implantation maybe useful in reducing cost and providing rapid visual rehabilitation.
Cataract Extraction*
;
Cataract*
;
Glaucoma, Neovascular
;
Humans
;
Lens Implantation, Intraocular*
;
Lenses, Intraocular*
;
Phacoemulsification
;
Postoperative Complications
;
Rehabilitation
;
Retinal Detachment
;
Visual Acuity
;
Vitrectomy*
;
Vitreoretinopathy, Proliferative
4.A radiological analysis of relations between the pelvic angles and the lumbar system according to elevation of one leg.
Myun Whan AHN ; Hae Hoon JUNG ; Do Sik CHU ; Jong Chul AHN ; Joo Chul IHN
The Journal of the Korean Orthopaedic Association 1992;27(1):394-402
No abstract available.
Leg*
5.Superficial Temporal Artery Pseudoaneurysm Treated with Manual Compression Alone.
Jong Hoon KIM ; Young Jin JUNG ; Chul Hoon CHANG
Journal of Cerebrovascular and Endovascular Neurosurgery 2015;17(1):49-53
Traumatic pseudoaneurysm of the superficial temporal artery (STA) is an uncommon lesion and resection of the lesion is the treatment of choice. Three patients with traumatic pseudoaneurysm of the STA treated with only manual compression of the lesions were examined for this study. We report on an effective and safe minimally invasive technique for treatment of traumatic pseudoaneurysm of the STA.
Aneurysm, False*
;
Humans
;
Scalp
;
Temporal Arteries*
6.Simultaneous Onset of Ischemic and Hemorrhagic Stroke Due To Intracranial Artery Dissection.
Jong Hoon KIM ; Young Jin JUNG ; Chul Hoon CHANG
Journal of Cerebrovascular and Endovascular Neurosurgery 2017;19(2):125-128
Intracranial dissections commonly present as ischemic stroke and as hemorrhagic stroke. In general, while either ischemic stroke or hemorrhagic stroke may develop, the simultaneous onset of both may also occasionally occur. In this report, we present a case of simultaneous development of ischemic stroke and hemorrhagic stroke due to an intracranial artery dissection.
Aneurysm, Dissecting
;
Arteries*
;
Carotid Artery, Internal
;
Stroke*
7.A Pseudoaneurysm Associated with a Ruptured Cerebral Aneurysm: Hypothesis on the Formation of the PA and Feasibility of Endovascular Treatment.
Jong Hoon KIM ; Chul Hoon CHANG ; Young Jin JUNG
Journal of Cerebrovascular and Endovascular Neurosurgery 2018;20(1):24-27
An intracranial pseudoaneurysm (PA) is a very rare disease and is known to occur in less than 1% of intracranial aneurysms. The pathophysiology and the modality of the proper treatment of PA have not yet been clearly established. We report a case of PA associated with ruptured cerebral aneurysms which was successfully treated by coil embolization, and also discuss the possible hypothesis on the formation of the PA and feasibility of endovascular treatments.
Aneurysm
;
Aneurysm, False*
;
Angiography
;
Embolization, Therapeutic
;
Intracranial Aneurysm*
;
Rare Diseases
;
Subarachnoid Hemorrhage
8.Characteristics of patients with ruptured very small intracranial aneurysm sized less than 3 mm
Gwang-Tae PARK ; Jong-Hoon KIM ; Young-Jin JUNG ; Chul-Hoon CHANG
Journal of Cerebrovascular and Endovascular Neurosurgery 2021;23(1):1-5
Objective:
If the size of an intracranial aneurysm is below 3 mm, clinicians rarely treat them because of the low risk of rupture. But subarachnoid hemorrhage (SAH) due to the rupture of very small intracranial aneurysm (VSIA) (saccular aneurysm sized less than 3 mm) may lead to many critical neurological complications. So we analyzed the characteristics and differences between the ruptured VSIA group and the ruptured non-VSIA group.
Methods:
421 saccular aneurysms from patients with SAH between January 2016 and December 2019 were included. Patient information including age, sex, and medical history and information about the aneurysm including location, size, aspect ratio, inflow angle, and height-width ratio were collected. And we compared the VSIA group with non-VSIA group about these characteristics
Results:
12.1% (51/421) of the aneurysms were included in the VSIA group, while the non-VSIA group consisted of 87.9% of the aneurysms (370/421). The female predominance was significantly higher in the VSIA group than that in the non-VSIA group (p=0.011). No significant difference was observed in location, medical history, height-width ratio between the groups. The mean value of the inflow angle in the VSIA group was much lower than that in the non-VSIA group, but no statistically significant association between rupture risk and the inflow angle was observed. The average aspect ratio was significantly lower than that in the non-VSIA group.
Conclusions
Ruptured VSIA group has higher percentage of females and lower aspect ratio than ruptured non-VSIA group. Further studies regarding the characteristics of ruptured and unruptured VSIA patients is required for assistance in clinical decision related to treatment of VSIA group before the aneurysmal sac rupture.
9.Characteristics of patients with ruptured very small intracranial aneurysm sized less than 3 mm
Gwang-Tae PARK ; Jong-Hoon KIM ; Young-Jin JUNG ; Chul-Hoon CHANG
Journal of Cerebrovascular and Endovascular Neurosurgery 2021;23(1):1-5
Objective:
If the size of an intracranial aneurysm is below 3 mm, clinicians rarely treat them because of the low risk of rupture. But subarachnoid hemorrhage (SAH) due to the rupture of very small intracranial aneurysm (VSIA) (saccular aneurysm sized less than 3 mm) may lead to many critical neurological complications. So we analyzed the characteristics and differences between the ruptured VSIA group and the ruptured non-VSIA group.
Methods:
421 saccular aneurysms from patients with SAH between January 2016 and December 2019 were included. Patient information including age, sex, and medical history and information about the aneurysm including location, size, aspect ratio, inflow angle, and height-width ratio were collected. And we compared the VSIA group with non-VSIA group about these characteristics
Results:
12.1% (51/421) of the aneurysms were included in the VSIA group, while the non-VSIA group consisted of 87.9% of the aneurysms (370/421). The female predominance was significantly higher in the VSIA group than that in the non-VSIA group (p=0.011). No significant difference was observed in location, medical history, height-width ratio between the groups. The mean value of the inflow angle in the VSIA group was much lower than that in the non-VSIA group, but no statistically significant association between rupture risk and the inflow angle was observed. The average aspect ratio was significantly lower than that in the non-VSIA group.
Conclusions
Ruptured VSIA group has higher percentage of females and lower aspect ratio than ruptured non-VSIA group. Further studies regarding the characteristics of ruptured and unruptured VSIA patients is required for assistance in clinical decision related to treatment of VSIA group before the aneurysmal sac rupture.
10.Clinical Evaluation of Traumatic Wound Dehiscence Following Cataract Surgery.
Choon Hoon LEE ; Yeon Chul JUNG ; Jong Woo KIM
Journal of the Korean Ophthalmological Society 1998;39(5):1030-1037
In 38 patients with traumatic wound dehiscence after cataract surgery, we evaluated the causes and degrees of the injury, surgical methods of repair and the final visual outcome from Aug. 1993 to Apr. 1977. Among 38 patients, twenty-five were men and thirteen were women. In 34 patients, wound dehiscence occurred within one month after cataract surgery. The common causes of wound dehiscence were trauma by the finger or fist (9 patients) and by the contusion (7 patients). But in 16 patients, the exact causes of trauma were not identified. Accompanied ocular findings were prolapsed iris (29 patients) , hyphema (9 patients) , and dislocation of intraocular lens (7 patients). All patients received operations for wound closure, iris reposition, anterior vitrectomy, intraocular lens reposition or removal, and iris partial resection. At the end of follow-up, 27 patients achieved corrected visual acuity 20/40 or over. To prevent wound dehiscence after cataract surgery, we suggest that protective eye shield should be applied at least for a month after surgery.
Cataract*
;
Contusions
;
Dislocations
;
Female
;
Fingers
;
Follow-Up Studies
;
Humans
;
Hyphema
;
Intraoperative Complications
;
Iris
;
Lenses, Intraocular
;
Male
;
Visual Acuity
;
Vitrectomy
;
Wounds and Injuries*