A Case of Hysterical Convergence Spasm

Convergence spasm is characterized by esotropia at near fixation in otherwise orthophoria or possibly exotropia at distance. A sustained convergence is usually associated with spasm of accomodation. This syndrome classically includes induced myopia, miosis of accomodation, esotropia and diplopia which increase at near fixation. A spasm of convergence of organic origin is very rare indeed but has been in central nervous system diseases of irritative type such as meningitis, encephalitis and post-encephalitic states. This condition may be seen in hysteria and traumatic neurosis. The case reported in the following was an 11 year old boy who presented with hysterical convergence spasm associated with an increase in accomodation, miosis and nystagmus at near fixation.

Bacteriological Study of Angular Blepharitis

Most common annoyant for angular blepharitis has long been known as a diplobacillus of Morax-Axenfeld since 1897. Bacteriological study has been done on 56 patients (102 eyes) being suffered from angular blepharitis clinically diagnosed in the Dept. of Ophthalmology, Yonsei University College of Medicine. Most angular blepharitis involved bilaterally (82%), 34 cases of angular blepharitis were seen in the nasal canthus (61%). Staphylococcus epidermidis was isolated from 50 eyes (49%) with angular blepharitis and staphylococcus au reus from 41 eyes (40%). No diplobacillus of Morax-Axenfeld was demonstrated in the culture from angular blepharitis.

Orbital Abscess Simulating Orbital Tumor

The authors have experienced with a case of orbital abscess that was thought to be an orbital tumor. The patient was a 5 year old Korean boy who had exophthalmos in the right eye, but he did not have definite signs of inflammation. On the orbital venogram, there was a space occupying lesion in the lateral and posterior portion of the right eye. To obtain the precise diagnosis of the lesion, we made a surgical approach and drainage of the pus was performed. The pus culture yielded coagulase-positive Staphylococcus. The literature relating to orbital abscess was briefly reviewed.

A Case of Down's Syndrome

The term Down's syndrome is preferred to mongolism. The most constant characteristic of disease is mental retardation. The incidence of Down's syndrome is about 1/600 in the general population, being roughly the same in various parts of world and in all races. The patient's mother's age at the same time of conception as well as the nature of chromosomalmalformation are in genetic counseling. We reported a case of Down's syndrome in 5 year old female who was bone in 38 year old mother, and she was noted epicanthus, nystagmus, esotropia, Brush-field spots. Other systemic manifestation-, Simian crease, short extrimites, inward curved 5th finger, Sandal gap foot, congenital heart disease, prominent abdomen-, was also noted.

The Studieg on Vertical Eye Movement Disorders: Vertical Saccadic Velocity Measurements

This study is concerned with human vertical saccadic systam to various visual stimulus. A system is described fer the recording and analysis of corrective movements and the angular velocities asscciated with 10 degrees and 20degrees vertical saccades. Recordings wsre made with photoelectric IR reflection method and the saccades were induced by a target system which operates on non-predictable manner. Statistical results for average peak veIomnes of right eye are given for a group of 4 normal subjects and compared with horizontal saccades. Most of corrective movements were categorized to saccadic and glissadic and magnitude of corrective errors were within 1 degree and 2 degrees and showed 20% production rate. The peak velccity statistics showed as 280 and 440 deg/s associated with 10 degrees and 20 degrees vertical movement and downward values were slightly faster than upward movements. Our results were compared with horizontal saccades and discussed the possibility of research and clinical tool that could be used on a large number and variety of patients.

A Case of Neurofibromatosis with Pulsating Exophthalmos

The authors have experienced a case of neurofibromatosis with pulsating exephthlmos of the left eye of a 15 year old Korean boy. Skull P-A showed wider left orbital cavity and absence of greater and lesser wings of the left aphenoid bone. Pathologic examination was performed with biopsy which was taken fro upper lid of the left eye and conformed neurofibromatosis. The literatures relating to this disease were briafly reviewed.