Clinical Observation on the Cryo-extraction of the Lens in Cataract

This study is based on the results of cryo-extraction of the lens in 123 eyes(98 cases) which were operated in Chosun University Hospital between Jan. 1979 and Feb. 1981. The results are summarized as follow: 1. The cryo-extraction have been done for 41 males and 57 females of the 98 patients. 2. The incidences of complication during operation were capsule rupture (5.7%), vitreous loss (4.9%), iris prolapse (1.6%). 3. The incidences of early postoperative complication were hyphema (12.1%). updra wn pupil (8.9%), corneal edema (6.5%), flat anterior chamber (4.9%). 4. The incidences of late postoperative complication were vitreous bulging (5.7%), vitreous opacity (4%), glaucoma(2.4%), uveitis (0.8%), retinal detachment (0.8%). 5. The ccrrected visual acuities before discharge of hospital were: more than 0.5 ... 39.0% (48 eyes), 0.1-0.4 ... 48.8% (60 eyes), less than 0.1 ... 12.2% (15 eyes). 6. The major causes of visual acuity less than 0.1 were vitreous opacity (33.4%), secondary glaucoma (20%), proliferative diabetic retinopathy (20%), corneal opacity (13.4%), retinal degeneration (13.3%).

The Effect of Ocusert for the Treatment of Glaucoma

Ocusert pilo-20 and pilo-40 are soft, flexible plastic devices, sized 13 X 5.7 X 0.3mm in pilo-20, and were inserted under lower or upper conjunctival fornices that gradually released pilocarpine in constant zero-order delivery rate for 7 days. A group of 11 patients(15 eyes) with simple open-angle gloucoma was selected for this study. 1. The Ocusert pilocarpine delivery system could be used effectively in simple open angl glaucoma patients who require lifelong instillation of pilocarpine. 2. The Ocusert system is released constantly the pilocarpine with round the clock intraocular pressure control for 7 days period. 3. After removal of the Ocusert after 7 days. intraocular pressure has gradually increased again after one day's interval. 4. While the Ocusert pilo-40 is placing into the conjunctival fornix, maximum reduction of intraocular pressure was under 20mmHg then the cases of high intraocular pressure over 40mmHg are not effective with single use of the ocusert. 5. Significant side-effect about the ocusert was not observed, only wild foreign body sensation in early time and occassional misplacement or moving of the Ocusert into deep space of upper conjunctival fornix, which is difficult to removal out are observed.

Clinical Observation of Herpes Keratitis

The clinical and statistical review were carried out with 92 cases of herpetic keratitis at the Dept. of Ophthalmology, St. Mary's Hospital, Catholic Medical College from Jan. 1974 to Aug. 1976. The results were as follow: 1. Herpetic keratitis was most prevalent at the age of 30's and least at those under 10 and 60'. 2. Male and female ratio was about 3 : 1 but the ratio under the age of 20 was even. 3. The most epidemic season was from March to June, amounting to about 56.5% of the total, and exhaustion was the most significant predisposing factor. 4. The simple type of herpetic keratitis was 45 cases (48.9%) of the total while the complicated type was 47 cases(51.1%). Four fifth of simple type was dendritic keratitis with 36cases (39.1%) and disciform keratitis was most frequent among the complicated type with 20 cases (21.7%). 5. Involvement was even between left and right eyes. 80% of binocular cases was primarily involved at the age of over 20's. Among binocular cases, both eyes showed similar signs and course. 6. Vision in the early stage depends on the location of keratitis invloved. Twenty two out of twenty three cases with duration over 3 years displayed and obvious decreased vision less than 0.1 which implied that the longer the duration is, the more evident the disturbance in vIsion is. 7. In 30 cases the effect of 5-ido-2'-deoxyuridine (I.D.U.) was excellent while there was no effective response to the 5-iodo-2'-deoxyuridine (I.D.U.) in 29 cases. In cases resistant against I.D.U., cryotherapy and keratoplasty proved to be very effective.

Clinical Observation of the Filamentary Keratitis

Authors presented the clinical review and evaluated the therapeutic response to 20 eyes of filamentary keratitis observed at the Department of Ophthalmology, St. Mary's Hospital for last 3 years. 1. The filaments disappeared within 2 days in 11 eyes by mechanical debriment with 0.5% C-M eyedrops, tear substitutes and prednisolone eye drops. 2. 4 of 20 eyes showed disappearance of the filaments within 3 days by the subconjunctival tathion injection combined with instillation of tathion eye drops. 3. For one eye which was resistant to the above therapy treated with continuous wearing of the B and L soft contact lens. In this case the filaments reduced in number from one day and completely disappeared after 6 days' wearing of soft contact lens. Patient discontinued the wearing of soft contact lens one week after. No epithelial filaments have appeared after discontinuance in wearing of the soft contact lens one week later.