Interference with the circulation of the blood and diseases of the blood vessels are of special importance in ocular disorders. Various conditions of the vascular disorders, namely inflammations, hypertension, sclerosis, occlusion, and prematurity, etc are briefly reviewed. Some additional findings in the retinal vessels after the fluorescence angiography are described on several important entities of the retinal vascular diseases.
Blood Vessels ; Fluorescein Angiography ; Hypertension ; Inflammation ; Retina* ; Retinal Vessels ; Retinaldehyde ; Sclerosis ; Vascular Diseases

Ectopic lacrimal gland denotes a lacrimal gland which is located anywhere other than its normal site, lacrimal fossa, and it can occur in places like conjunctiva, cornea, lid, nasal mucosa, and orbit. It is a rare congenital anomaly and needs to be differentiated form other tumors. The literature contains few reports of ectopic lacrimal gland. We experienced a case of a 28-year-old Korean man who presented with an ectopic lacrimal gland with duct at temporal aspect of bulbar conjunctiva. The glandular tissue was excised and was histopathologically confirmed as such. We report it with reviews of the literature concerned.
Adult ; Conjunctiva ; Cornea ; Humans ; Lacrimal Apparatus* ; Nasal Mucosa ; Orbit

Two kinds of copper-pure and 70% dilute alloy suspension were introduced into the vitreous of albino rabbits, and electron microscopical observation was carried out on the retinal tissue after several periods from 1 day up to 60 days. Major changes are as follows: 1. Early response of rabbit retina with pure copper foreign body exhibited severe and diffuse destruction with much deposition of particles mainly in nerve fiber layer. The influence of 70% copper alloy to the retinal tissues tended to demonstrate mild, localized and delayed in occurrence. 2. In the nerve fiber layer where the tissue disintegration took place Muller cell demonstrated the features of mitosis and proliferation. Including this rare incidence, it is possible to conclude that Muller cell proliferation occur in any part of the retina if the condition allows. 3. Cytoid bodies mainly consisting with glycogen aggregates within the Miiller cell processes in nerve fiber layer was one of prominent pictures in early stage. 4. Muller cells took an important role in reparative process replacing the destructive portion of the retinal cells with the extension of the same cells beyond the external limiting membrane toward the choroid. 5. At the late stage, the Muller cells contained abundant filaments replacing the reduced number of smooth surfaced endoplasmic reticulum and other organells. That implicats the enhancement of supportive mechanism at the occasion of the disintegration of retinal tissue prolonged. 6. A relatively early sign was active phagocytosis of retinal pigment epithelial cells engulfing the reminiscent fragment of ouer pigment of visual cells.
Alloys ; Cell Proliferation ; Choroid ; Copper ; Endoplasmic Reticulum ; Ependymoglial Cells ; Epithelial Cells ; Foreign Bodies ; Glycogen ; Incidence ; Membranes ; Mitosis ; Nerve Fibers ; Phagocytosis ; Rabbits ; Retina* ; Retinaldehyde

PURPOSE: To inform the necessity of mass screening, we performed a mass screening for the detection of ocular disorders of preschool children. METHODS: Ocular examination was performed on 60, 827 children in Korea (3-6 years of age) during the period from March to October, 2000. The total of 3, 254 children were shown to have either visual acuity of less than 0.5 or anisometropia of over 2 lines. Detailed eye examination was conducted on those 3, 254 children. RESULTS: The numbers of first mass screening were 60, 826. Diagnosis consisted of refractive errors in 2, 216, amblyopia in 664, and strabismus in 235. Among the types of refractive errors, myopic astigmatism was the most common type (34.0%). Astigmatism was combined with all other types in 1, 659 children. Refractive error was the most common cause of amblyopia (88.0%) CONCLUSIONS: To prevent and treat amblyopia or strabismus, early detection and adequate care at preschool age seemed to be very effective. Participation rate for this mass-screening of eye disease during preschool age will be more increased by efforts of constiutional support and parental cooperation.
Amblyopia ; Anisometropia ; Astigmatism ; Child* ; Child, Preschool ; Diagnosis ; Eye Diseases ; Humans ; Korea* ; Mass Screening ; Parents ; Refractive Errors ; Strabismus ; Vision Screening* ; Visual Acuity

Purposes of the prevention of blindness are considered in manifold. In view of the increasing number of the blind in this community, activities for the prevention of blindness would be placed on the higher position in health problem. Modern concepts of application of prevention in ophthalmology are introduced and the importance of preventive research in ophthalmology is emphasized. A plan of organization for the prevention of blindness (to-be) in Korea under the auspices of the Korean Ophthalmological Society is suggested.
Blindness ; Korea ; Ophthalmology

In order to elucidate the present features of visual-impairments related to refractive errors including myopia and causative factors of myopia among urban school children, visual acuity, refractive components on the myopia, and socioenvironmental factors were examined among 4,004 primary, middle and high school children in Seoul. It was conceived that the results were facilitated for the future improvements of the Eye Health Plan for the school children in this country. This study reveals that visual impairments and prevalence of myopia increase with the school grade(age), and progression of myopia begins earlier in girls than boys. The Progress of myopia is closely related with elongation of ocular axial length along with vitreous A-P length and compensatory reduction of radius of radius of corneal curvature were more apparent in myopia of -0.5 ~ -5.0 D than the group of over -5.0 D. According to the analysis of ancilliary questionnaire, we have got a conclusion that it is statistically significant that the myopization of the ocular structure appeared susceptible with the socio-environmental factors such as eating habits, T.V. watching period and distance, reading hours, distance and type of illumination, and school achievement, which are mainly related to near work. From the results, it is deducible that by improving such environmental factors the myopia in some proportion would be preventable especially in younger children.
Child* ; Eating ; Female ; Humans ; Lighting ; Myopia* ; Prevalence ; Surveys and Questionnaires ; Radius ; Refractive Errors ; Seoul ; Vision Disorders* ; Visual Acuity

Outstanding reports on the findings of the finer structures of every ocular tissue by the electron microscope with transmission, scanning, replica, and other measures are reviewed. Among them, description on the retinal tissue is detailed in part. An application of the electron microscopy to the histopathological diagnosis is a newly developed field with amazing results and some features on the ophthalmic pathology are briefly intrdouced.
Diagnosis ; Microscopy, Electron ; Pathology ; Retinaldehyde

1. Sixty five cases of the tumors in the eye and adnexa(one to 78 old age) were observed at the National Medical Center in Korea, between 1959 and 1961. Those are analyzed and studied from the clinical view point. 2. Fifty-two tumor cases were primary and thirteen cases were secondary. The most frequent malignant tumor was retinoblastoma(15 cases) in childhood group and cancers(11 cases) in older age group. The malignant melanoma case(1 case) was definitely few in number. 3. The most frequent origin was the eye ball(19 cases) and next the lid(12 cases). The secondary tumors camed mostly from paranasal sinuses(12 cases). 4. Among the clinical diagnostic methods, it is revealed that the X-ray tomography with air insufflation into the orbit was most reliable. 5. The visual disturbance, exophthalmos, displacement of the eye, and impaired ocular movement were the most frequently seen as the clinical symptoms and of value for diagnosis.
Diagnosis ; Exophthalmos ; Humans ; Insufflation ; Korea ; Melanoma ; Orbit ; Tomography, X-Ray

1. 110 cases of optic atrophy from 7 months to 67 years old, 82 bilateral with 28 unilateral involvement observed at the National Medical Center in Korea Between 1959 and 1961 were analyzed for etiologic factors which were which were also based on a a review of literature. 2. Of the 110 cases, the largest single cause of optic atrophy af all type was brain tumor(18 cases, 16.4%) with exogenous poisoning(11 cases, 10%) second in frequency. 3. Cases of atrophy due to tuberculous meningitis(10 cases, 9.1%) were found in the age group of one to 15 years as the most frequent cause in childhood. 4. The retrobulbar neuritis was one of the most frequent causes(9 cases, 8.2%) in the adult. Also the traumatism(8 cases, 7.3%) as to the prevalent acuses of post-war blindness. 5. A characteristically low incidence of syphilis (4 cases, 3.6% without congenital syphilis) as the cause of the optic atrophy is one of the subject to be evaluated in the future.
Adult ; Aged ; Atrophy ; Blindness ; Brain ; Humans ; Incidence ; Korea ; Optic Atrophy* ; Optic Neuritis ; Syphilis

Diagnosis of glaucema in its earliest stage with the accurate estimation of functional disturbances of the eye is constant goal of the important part of clinical ophthalmology. Diagnostic measures for glaucoma especially in the early detection are reviewed. They include the tonometric techniques, ophthalmoscopy (observation of optic disc), visual field examinations and goniscopy., etc. in various methods. The more concerns are on the diagnostic evaluation of primary open angle glaucoma, and the practical value of mass screening of the glaucoma is described additionally.
Diagnosis* ; Glaucoma* ; Glaucoma, Open-Angle ; Mass Screening ; Ophthalmology ; Ophthalmoscopy ; Visual Fields