The effect of topical perfluorophenanthrene on corneal neovascularization was studied at chemically induced corneal burn on the rats. A central corneal burn was produced with 10% NaOH. Right eye was treated with perfluorophenanthrene and gentamicin eye drops four times a day for five days, the left with balanced salt solution and gentamicin eye drops as control. After five days treatment the rats were sacrified, and the tissue slide were prepared for microscopIc examination. Using slide projector the tissue slide were projected and magnified on the screen. The number of corneal new vessels, the distance of new vessel from the limbus, and the degree of increased corneal thickness were calculated in both groups. As the result there were no statistical difference between two groups. Analysis using ANOVA program showed the fact that statistically significant correlationship between the degree of corneal thickness and the number of the new vessels and the distance from the limbus were found. The result could confirm the mechanism of corneal neovascularization that disarrangement of the compact corneal tissue could allow the formation of the new vessels.
Animals ; Burns ; Corneal Edema ; Corneal Neovascularization* ; Gentamicins ; Ophthalmic Solutions ; Rats*

The biometric analysis of the normal aged eye with photodocumented method (using EAS-lOOO Scheimpflug camera) was performed in 109 eyes. We measured anterior chamber depth, corneal thickness, corneal radius, lens thickness and biometric lens analysis according to the age. The lens thickness increased annually (O.O1mm) with age and the anterior chamber depth reversely decreased. The biometric analysis can provide normal critariae values about the effect of anticatar acto us drugs in long-term follow up study and the relationships between normal aged lens and highly risk groups in the cataract prevalence study.
Anterior Chamber ; Cataract ; Radius

Collet-Sicard syndrome is one of the syndromes of the multiple lower cranial nerve palsies, characterized by unilateral paralysis of 9th through 12th cranial nerves. The present report describes a 34-year-old woman who had hoarseness, dysarthria, and loss of taste developed after febrile illness. Brain MRI, both T1WI and T2WI, showed high signal intensity in the left jugular foramen. Gd-GTPA contrast injection revealed thickening and enhancement of the left tentorium. Angiography disclosed nonvisualization of the left transverse and sigmoid sinus, and reconstruction of the left internal and external jugular vein by collaterals from the angular, facial, and posterior fossa veins. The patient improved spontaneously two months later. This is the first report of Collet-Sicard syndrome resulting from jugular vein thrombosis.
Adult ; Angiography ; Brain ; Colon, Sigmoid ; Cranial Nerve Diseases ; Cranial Nerves ; Dysarthria ; Female ; Hoarseness ; Humans ; Jugular Veins* ; Magnetic Resonance Imaging ; Paralysis ; Thrombosis* ; Veins

A rostro-caudal topography of the oculomotor nerve fascicles is relatively well known in animal but not in human. We experienced two cases of midbrain infarctions presenting with isolated oculomotor nerve palsies. The MRI of the patient who had monocular elevation palsy with ptosis revealed a lesion in the middle to lower midbrain, whereas that of the other who had monocular depression and adduction palsy with pupillary mydriasis showed a discrete lesion in the upper to middle midbrain. We present the rostro-caudal arrangement of the oculomotor fascicles within midbrain based on MRI findings.
Animals ; Depression ; Humans ; Infarction* ; Magnetic Resonance Imaging ; Mesencephalon* ; Mydriasis ; Oculomotor Nerve ; Oculomotor Nerve Diseases ; Paralysis

Every researcher wants their research to gain more recognition, and this desire is achieved by publishing their article in a journal with higher impact. It is very important to get researchers interested in the Journal of Korean Neurosurgical Society (JKNS). Therefore, the first goal was to promote the publication of papers in our journal. To do this, a table of contents was sent out, and the citation ranking was announced every 2 months. Several efforts have been made to publish good papers. Foreign speakers, who were invited to a conference hosted by the Korean Neurosurgical Society were contacted and politely requested to write a paper addressing their recent research. Domestic and international researchers highly renowned in their fields were also contacted to submit their novel works to our journal. The journal impact factor of our journal has continued to rise for the last 3 years and reached 1.376 in 2019. It can be said that the JKNS is now competitive with other international neurosurgery journals. These achievements were not due to the efforts of the editorial boards alone. This was because our society members have submitted very good papers, and because many of our members have cited the papers published in our journal. We believe that this will continue in the future. The next step of evolution of the JKNS has begun, and this is the beginning of another great development.

Every researcher wants their research to gain more recognition, and this desire is achieved by publishing their article in a journal with higher impact. It is very important to get researchers interested in the Journal of Korean Neurosurgical Society (JKNS). Therefore, the first goal was to promote the publication of papers in our journal. To do this, a table of contents was sent out, and the citation ranking was announced every 2 months. Several efforts have been made to publish good papers. Foreign speakers, who were invited to a conference hosted by the Korean Neurosurgical Society were contacted and politely requested to write a paper addressing their recent research. Domestic and international researchers highly renowned in their fields were also contacted to submit their novel works to our journal. The journal impact factor of our journal has continued to rise for the last 3 years and reached 1.376 in 2019. It can be said that the JKNS is now competitive with other international neurosurgery journals. These achievements were not due to the efforts of the editorial boards alone. This was because our society members have submitted very good papers, and because many of our members have cited the papers published in our journal. We believe that this will continue in the future. The next step of evolution of the JKNS has begun, and this is the beginning of another great development.

Scarless wound healing with minimal inflammation obscured in the fetal skin rpay be due to the fact that amniotic fluid contains factors that may modulate the wound healing process. To examine this possibility, We examined the effect of topical application of human amniotic fluid on the healing of rabbit corneal wounds induced by excimer laser stromal ablation. The right eye received undiluted human amniotic fluid(AF) drops(13th week gestational age) and the left eye received the BSS as a control five times a day for one month. Epithelial healing completed within three days. The wound healing rate was not significant in the early phase but was significant in the late phase(p<0.05). Keratometric regression was significantly less in human amniotic fluid treated(AF group) eyes than BSS treated(control group) eyes. Corneal opacity was significantly less in AF group than control group at one and three months after laser ablation using Scheimpflug camera photography and MacDonald-Schadock class ification(p<0.05). Morphological examination revealed convoluted basement membrane, discontinued hemidesmosome and increased number of activated keratocytes in BSS-treated eyes. These results indicate that corneal scarring(haze) can be reduced by topical application of human amniotic fluid. We speculate that amniotic fluid may contain factors that can facilitate the restoration of fetal environment for wound healing by inhibiting fibroblast activation, thus preventing scar formation.
Amniotic Fluid* ; Basement Membrane ; Cicatrix ; Corneal Opacity ; Female ; Fibroblasts ; Hemidesmosomes ; Humans* ; Inflammation ; Laser Therapy ; Lasers, Excimer* ; Photography ; Rabbits* ; Skin ; Wound Healing ; Wounds and Injuries*

To evaluate the efficacy of amniotic membrane ransplantation(AMT) in the cornea that was perforated or impending perforation due to recalcitrant corneal ulcer or trauma, we performed AMT on 1 case of acid burn, 2 cases of thermal burn, 1 case of corneoscleral staphyloma with bullae due to previous ocular trauma, 2 cases of keratolysis as a graft rejection after keratoplasty, 3 cases of corneal ulcer. We used one or several layers of amniotic membrane(AM) that preserved in DMEM solution and 10% glycerin(1:1) under-70 degrees C or lyophylized form. As a result, the corneal perforations were prevented and the stable ocular surface were achieved. However, in case of neurotrophic keratopathy, epithelial rebreakdown was occurred after AMT, eventually epithelalization was fulfilled. Therefore, AMT may be a effective alternative method for treating corneal perforation or impending perforation that are refractory to conventional treatment.
Amnion* ; Burns ; Cornea* ; Corneal Perforation ; Corneal Transplantation ; Corneal Ulcer ; Graft Rejection

PURPOSE: Amniotic membrane (AM) contains various proteinase inhibitors and when used as a graft, it could enhance healing process by blocking insult of inflammatory cells and inhibiting proteolytic damage. Thus we evaluated whether applying of amniotic membrane extract as eyedrops could get the same effect as amniotic membrane patching. METHODS: Alkali wounds were inflicted on the central corneas of rabbits by applying a round filter paper, 6.0 mm in diameter, soaked in 1N NaOH for 30 seconds. A total of 16 rabbits were divided into four groups: (1) applied with amniotic membrane extract; (2) applied with amniotic membrane extract and Healon(R); (3) applied with methylcellulose; and (4) control. Each material was applied for 1 week. During follow-ups, epithelial defects, corneal thickness and its opacity were measured. RESULTS: The epithelial healing was faster and the corneal thickness was thinner in amniotic membrane extract applied groups than in non-applied. Corneal opacity was much less in AM extract applied groups. CONCLUSIONS: AM extract as eyedrops promotes wound healing and it could be an effective method for treating various keratitis due to its convenience and good effect.
Alkalies* ; Amnion* ; Burns* ; Cornea ; Corneal Opacity ; Follow-Up Studies ; Keratitis* ; Methylcellulose ; Ophthalmic Solutions ; Rabbits ; Transplants ; Wound Healing ; Wounds and Injuries

A number of methods have been introduced for support the orbital floor following a maxillectomy without orbital exenteration or severe facial trauma. These methods including skin graft and muscular sling provided the unsatisfactory results, like as diplopia, orbital ptosis, enophthalmos and severe facial deformity. Therefore the bone and soft tissue reconstructions using microvascular free flaps were performed recently by many surgeons, but long time operation, donor site morbidity, postoperative large scar, and ptosis of the flap were pointed out as disadvantages of free flap reconstruction. Vascularized calvarial bone flap, a modified method of free calvarial bone graft, was adequate for reconstruction of the orbital floor and the infraorbital rim as a horizontal buttress, especially in case of poor vascular bed and postradiated state. The authors introduced the vascularized calvarial bone flap for the orbital floor and the infraorbital rim reconstruction in 3 cases of maxillectomy, and could be obtained satisfactory results aesthetically and functionally.
Cicatrix ; Congenital Abnormalities ; Diplopia ; Enophthalmos ; Free Tissue Flaps ; Humans ; Orbit* ; Skin ; Tissue Donors ; Transplants