Detection of Glaucomatous Visual Field Defect by Screening Program of Humphrey Field Analyzer

We have experienced automated and computerized perimetry using a Humphrey Field Analyzer in our Glaucoma Services. To evaluate its clinical efficacy, we report the results of the Armaly central field screening test in comparison with those of central 30-2 threshold test of the Humphrey Field Analyzer. One hundred fortythree eyes of 83 cases of normotensives, ocular hypertensives and glaucoma patients with open-angle or narrow-angle were enrolled in this study. Fiftyfour out of 61 patients (88.5%) and 73 out of 81 eyes (90.1 %) with visual field defect were detected by the screening test of the Humphrey Field Analyzer. Eight out of 81 eyes (9.9%) with visual field defect detected by the screening test were confirmed as false positive. All points of false positive were solitary, which tended to occur more frequently on superior vusual field. False negative of 8 eyes (12.9%) detected by the screening test were confirmed by the threshold test. The point of false negative was more frequent on superior field and showed to locate more peripherally from the fixation point. There was no significant difference in either central sensitivity or age of the false ring.

Effect of Apraclonidine Hydrochloride on the Acute Intraocular Pressure Rise after Argon laser Iridotomy

To determine the effect of apraclonidine hydrochloride on the acute intraocular pressure (IOP) rise after argon laser iridotomy (ALl), a double-masked comparative study was carried out. Twenty-nine eyes (20 patients) with angle-closure glaucoma underwent ALL Eighteen eyes were treated with apraclonidine and the remainder received placebo 1 hour before and immediately after ALl. The mean IOP increase in the apraclonidine group was lower than that in placebo group at each postlaser intervals (p<0.01). Although average value of maximal increases of IOP after ALl in apraclonidine group was 4 mmHg, that in placebo group was 16mmHg. 27.3% (3 out of 11 eyes) in placebo group experienced IOP rise greater than or equal to 10 mmHg, however, that kind of IOP rise was not found in apraclonidine group (0 out of 18 eyes) (p

Effect of apraclonidine hydrochloride on acute introacular pressure rise after argon laser iridotomy

To determine the effect of apraclonidine hydrochloride on the acute intraocular pressure (IOP) rise after argon laser iridotomy (ALI), a double-masked comparative study was carried out. Twenty-nine eyes (20 patients) with angle-closure glaucoma underwent ALI. Eighteen eyes were treated with apraclonidine, and the remainder received a placebo 1 hour before and immediately after ALI. The mean IOP increase in the apraclonidine group was lower than that in the placebo group at each postlaser interval (p or = 10 mmHg. However, that kind of IOP rise was not found in the apraclonidine group (0 out of 18 eyes) (p < 0.01). Ocular or systemic side effects were not found in a series of examinations in both groups. Therefore, apraclonidine proved to be effective in lowering the IOP rise after ALI.

Detection of glaucomatous visual field defect using a screening program of Humphrey Field Analyzer

To evaluate its clinical efficacy, we report the results of Armaly central field screening test in comparison with those of central 30-2 threshold test of Humphrey Field Analyzer. In 83 cases of normotensives, ocular hypertensives, and glaucoma patients with open-angle or narrow-angle enrolled in this study, a total of 143 eyes were examined. Fifty-four out of 61 patients (88.5%) and 73 out of 81 eyes (90.1%) with visual field defects were detected by the Humphrey Field Analyzer screening test. Eight eyes out of 81(9.9%) with visual field defects detected by the screening test were confirmed as false positive. All points of false positive were solitary, which tended to occur more frequently on superior visual field. A false negative of eight eyes out of 62 (12.9%) detected by the screening test was confirmed by the threshold test, which was more frequent on superior field and shown to be located more peripherally from the fixation point. There was no significant difference in either central sensitivity or age of the false positive and negative.

Clinical experience of exfoliation syndrome

Six patients with exfoliation syndrome were seen in our glaucoma clinic. Four patients presented unilateral ocular involvement and the other 2 patients were bilaterally involved. Eight eyes had exfoliation material on the anterior surface of the lens and pupillary border, and 7 eyes exhibited it on the anterior chamber angle. Sampaolesi`s line was detected in 4 eyes. Five patients (6 eyes) of 6 patients (8 eyes) with exfoliation exhbited an elevated intraocular pressure (IOP) exceeding 21 mmHg. Among them, 3 patients (3 eyes) had an extremely high maximum IOP over 47 mmHg, and 2 patients (3 eyes) had a slightly elevated IOP less than 26 mmHg during the follow-up period. Argon laser trabeculoplasty (ALT) was performed twice on each unilateral eye of the 2 patients on whom the inital trabeculectomy failed. However, longterm IOP control after laser treatment was not obtained in either case, which might be due to the extremely high prelaser lOP level, in exoess of 40 mmHg.

Exfoliation Syndrome: Clinical analysis of 6 cases

The first comprehensive clinical description of exfoliation syndrome was published by Vogt. The appearance is described as a deposition of white granular fluffy material on the anterior lens surface, pupil margin, zonule, ciliary body and anterior chamber angle, and floating free in the aqueous. At past, this syndrome was thought to be rare outside of the Scandinavian countries, but the relatively high prevalence has been noted in many other countries outside of Scandinavia. The clinical significance of this syndrome is high frequency of glaucoma. Six cases in this report illustrate some of typical clinical features of exfoliation syndrome. The purpose of this study is to concentrate our attention upon the presence of this syndrome in Korea.

Clinical Observations on Hyper II(R) Soft Contact Lens

To estimate the clinical usefulness of a newly developed soft contact lens, Hyper II(R) soft contact lens which is a product of 2-hydroxyethylmethacrylate and special cross linking agents by International Contact Lens Lab., Seoul Korea, clinical observations were carried out in 89 patients(154 eyes) during the follow up period of 3 months from April 1985 to February 1986. Excellent corrected visual acuity(over 1.0) was obtained in 134 eyes(87%). The most common subjective symptom after wearing contact lens was foreign body sensation, but this symptom had diminished during the follow up period. Twentyfour eyes discontinued wearing the lens because of lens related problems including lens deposit(11 eyes), lens lost(3 eyes), foreign body sensation(3 eyes), handling difficulty(2 eyes), lens torn (1 eyes) et al. It can be suggested that Hyper II(R) soft contact lens is clinically available with excellent improvement of visual acuity and few complications, either subjective or objective, which might influence wearing contact lens. Long-term follow up, however, might be necessary to understand and reduce the late complications of this soft contact lens.