A new rodenticide, RH-787, made in Rhom and Hass co. was introduced in this country because it was known relatively harmless to human and beasts. But many internists found that RH-787 induces diabetes in human after accidental ingestions. The effects of RH-787 on various organ are still controversial but the associaton of RH-787 with diabetes is now recognized through the clinical and experimental studies. The cataract is not infrequently seen in juvenile diabetics of several years' duration. In the case to be reported, the cataract was appeared more rapidly within about 2 years after known diabetes due to RH-787 intoxication than usual diabetic cataracts, and the visual results were good after bilateral extracapsular lens extractions with peripheral iridectomy, without any complication.
Cataract* ; Humans ; Iridectomy

In the special cases that iris was not naturally prolapsed from the ab externo incision at the peripheral iridectomy for glaucoma(Barkan, Scheie), the iris could be easily drawn out by applying the iris suction which was designed by author. Kong iris suction is similar to the Bell erisophake, but the cup of the iris suction is transparent so that the prolapsing process through the wound could be seen. The peripheral iridectomy with smallest size of the scleral incision can be performed uing the iris suction without introducing the iris forsceps into chamber.
Iridectomy ; Iris* ; Suction* ; Wounds and Injuries

The first clinical trial of the Q-switch Nd:YAG laser iridectomy using Coherent model 9900 in Korea was carried out since March of 1985. 51 eye cases(48 patients) of acute and subacute narrow angle glaucoma were treated with a Q-switched Nd:YAG laser during the last one year and half. The results obtained are as follows; 1) Good results could be obtained by setting 3.0~4.9 mj with mean pulse energy of under 50. 2) Nd:YAG laser iridectomy site and normal intraocular pressure were maintained well. 3) Complications were encountered in 7 eyes(13.7%) but most cases were transitory without permanent damages.
Glaucoma ; Intraocular Pressure ; Iridectomy* ; Korea

Persistent remnants of the pupillary membrane are extremely common, but well-formed membrane which was covering almost entire pupil is very rare. We experienced one case a 15 year-old boy who had extensive dense persistent pupillary membrane with visual disturbance in left eye and optical iridectomy was performed with improvement of vision.
Adolescent ; Humans ; Iridectomy ; Male ; Membranes* ; Pupil

41 cases of complicated cataract in leprosy patients were operated on from May 1989 to March 1990 at National Sorok Island Hospital. In all cases, extracapsular cataract extraction was attempted and sector or peripheral iridectomy was performed. Inferior sphincterotomy was not done in any of the cases. The postoperative results were very satisfactory in most of the operating cases. The results are as follows; 1) Corrected vision above 0.1 was obtained in 29 eyes(70.7%). 2) Corrected vision from F.C. to 0.09 was obtained in 8 eyes(19.5%). 3) Corrected vision below H.M. was obtained in 4 eyes(9.8%). 4) 37 eyes(90.2%) among the total 41 showed an improvement of corrected vision.
Cataract Extraction ; Cataract* ; Humans ; Iridectomy ; Leprosy*

During the last one year. 23 selected cases of various glaucomatous eyes were received trabeculectom y ab extemo (5 X 3mm scleral-flap with a large peripheral iridectomy and only two scleral-flap corners sutures) under surgical microscope. Success cases which were controlled ocular tension to normal are 21 eyes(91.3%) out of total 23 glaucomatous eyes. Especially, all 11 eyes of simple open angle glaucoma were obtained excellent normotension after trabeculectomy, But one case of absolute glaucoma was failed because of vitreous prolapse, and another failed case was in group of acute closed glaucoma due to surgical complication of total hyphema(Table 1, 2).
Glaucoma ; Glaucoma, Open-Angle ; Intraocular Pressure ; Iridectomy ; Prolapse ; Trabeculectomy*

A case of Vogt-Koyanagi-Harada's Sindrome chiefly affected the anterior uvea has been clinically studied with several references. It was a typical one with hearing disturbances and was complicated with a secondary glaucoma. Following the iridectomy the I.O.P. was back to normal limit and with steroid therapy the inflammatory signs were relieved. After a considerabie period the anterior uveitis recurred. In this case the age of the patient was 10 years older than those Parker presented.
Child ; Glaucoma ; Hearing ; Humans ; Iridectomy ; Uvea ; Uveitis, Anterior

Recently iridectomy using argon or Nd-YAG laser to treat narrow angle glaucoma has become popular, and is now a procedure of choice over the standard surgical technique. However, shock wave of Nd-YAG laser causes hemorrhage in almost all cases and high energy level of Nd-YAG laser, which is required for iridectomy, causes injuries to the lens and cornea. Furthermore, there is a tendency toward closure of the iridectomy site after argon laser application. We performed iridectomies by combined application of argon and Nd-YAG laser in pigmented rabbits to improve iris bleeding, iridectomy patency, and lens and corneal damage. The iridectomy patency and the lens and corneal damage were examined with scanning electron microscope. The rabbits that underwent laser iridectomies with only Nd-YAG laser were used as a control group. The following results were obtained: 1. The bleeding rate of the iridectomy in the combined application group was 2.4% and in the control group 98.8% proving the combined application of both lasers to be higly effective. 2. In the experimental group, the patency rate of iridectomy was 33.3% at the energy level of 1 mJ, 66.6% at 2 mJ, 83.3% at 4 mJ, and 6 mJ, respectively. In the control group, the patency rate of iridectomy was 33.3% at the energy level of 4 mJ, 63.6% at 6 mJ, 83.3% at 8 mJ, respecively. At the same energy level, the experimental group showed a higher rate of patency than the control group. 3. In both experimental and control groups, the lens damage was noted at the energy level of 6 mJ or higher. The lens was not affected by lower energy Nd-YAG laser. 4. In the experimental and control groups, the corneal damage was observed at the energy level of 8 mJ or higher. The cornea was not affected by low energy Nd-YAG laser. Based on the above results, it can be concluded that laser iridectomy by combined application of argon and Nd-YAG lasers results in a lower rate of bleeding, a higher rate of patency, and less damage to the lens and cornea as compared with iridectomy performed by Nd-YAG laser only.
Argon* ; Cornea ; Glaucoma ; Hemorrhage ; Iridectomy* ; Iris ; Lasers, Solid-State* ; Rabbits* ; Shock

Primary or secondary IOL implantation after cataract extraction was performed in 41 eyes of 36 lepromatous leprosy patients, who showed negative skin test, from October 1990 to April 1992 at Chilgok Catholic Skin Clinic. Mean follow-up period was 8.3 months. Visual improvement was achieved in 39 eyes (95.1%), including 25 eyes (61.0%) of corrected vision better than 0.5. There was no serious complication induced by IOL implantation. But photophobia was complained in 18 eyes (66.7%) of 27 iridectomized eyes. We think that we may as well implant IOL after cataract extraction in lepromatous leprosy patients with complicated cataract if there is no active inflammatiQn in anterior chamber, guarded iridectomy is performed and it is possible to follow up considerably.
Anterior Chamber ; Cataract Extraction* ; Cataract* ; Follow-Up Studies ; Humans ; Iridectomy ; Leprosy, Lepromatous* ; Photophobia ; Skin ; Skin Tests

PURPOSE: To investigate the intraocular pressure-lowering efficacy of laser goniopuncture in 5 cases after hypertrophy of the trabecular-Descemet membrane resulting from deep sclerectomy with collagen implant (DSCI). METHODS: Among the twenty-one patients (26eyes) who received DSCI, laser goniopuncture was performed in 5 patients (19%) by Nd:YAG laser at 5-10 mJ, 3 burst mode, and 2-10 times. RESULTS: Of the 5 cases who received Nd:YAG laser goniopuncture, 2 cases showed a decrease in intraocular pressure after 1 session of treatment while 3 cases resulted in increase of intraocular pressure due to anterior synechiae of the iris. The anterior synechiae were resolved by Argon and Nd:YAG laser in 1 case, peripheral iridectomy and iridoplasty in 1 case but in the third case, patient refused to receive recommended further laser treatment such as peripheral iridectomy and iridoplasty. CONCLUSIONS: In cases of increased intraocular pressure caused by hypertrophy of the trabecular-Descemet membrane after DSCI, laser goniopuncture is an effective method of treatment. However, iris prolapse and anterior synechiae may occur during the follow-up period which can be resolved by peripheral iridectomy and synechiolysis.
Argon ; Collagen* ; Follow-Up Studies ; Humans ; Hypertrophy ; Intraocular Pressure ; Iridectomy ; Iris ; Membranes ; Prolapse