On 108 eyes of 54 patients (19 males, 35 females, aged 45-75) thickness of cornea was measured. 40 patients with 1 eye acute glaucoma and the 2nd eye has not glaucoma (potential angle closure), 14 other patients with both 2 eyes of high ocular pressure (entire closure of vertibular angle). Results showed that the centre corneal thickness got an important change in angle closure glaucoma, it had a lineary relation with ocular pressure. In the crisis of acute angle closure glaucoma, corneal thickness accounted for x = 0.5730.053 mm and the crisis of potential angle closure glaucoma x = 0.5310.031 mm. With an increase of pressure of 1 mmHg, corneal thickness increases by 0.038 mm
Glaucoma ; Glaucoma, Angle-Closure ; Diseases

To evaluate clinical availability of the Dark Room Prone-position Test (DRPT), which is one of the provocative tests of angle-closure glaucoma, this study was carried out. Twenty nine patients (43 eyes) with primary angle-closure glaucoma (PACG) were enrolled, and seventeen primary open angle glaucoma (POAG) patients (34 eyes) arld fourty one normal persons (82 eyes) were used as control group. After DRPT, P ACG showed statistically significant intraocu lar pressure (IOP) rise of 6.3 +/- 6.82mmHg as compared with group of POAG or normal 2.0 +/- 2.04mmHg and 1.4 +/- 1.47mmHg, respectively (p<0.05). Fifteen eyes among 43eyes (34.9%) of PACG showed DRPT positive defined as over 7mmHg rise after DRPT, and the final IOP of DRPT over 21mmHg showed significant DRPT positive (43.5%) than that of under 20mmHg (0.00%) (p<0.05). Glaucomatous attack was more occurred 1.9 times in DRPT postive group than in DRPT negative one.
Glaucoma, Angle-Closure* ; Glaucoma, Open-Angle ; Humans

PURPOSE: To report the difference between the postoperative spherical equivalent (SE) and predictive refraction in patients with cataract and primary angle-closure glaucoma (PACG) following cataract operation. METHODS: (1) This study involved 60 eyes who underwent cataract surgery due to PACG and cataract, and 36 eyes who underwent surgery due to cataract only. We measured the manifest refraction postoperatively for comparision to the target power. (2) The axial length (AL) was measured by the different modes of A-scans(phakic, aphackic modes) in the 38 eyes with cataract. (3) The difference was calculated according to the three IOL power calculation formulas for the 60 eyes who had cataract surgery for coexisting PACG and cataract. RESULTS: The difference between postoperative SE and predictive refraction was -0.61+/-0.91D in the PACG with cataract and +0.08+/-0.43D in eyes with cataract only. There was no difference according to the IOL power calculation formulas or the different modes observed in the measurement of AL. A greater difference was seen in eyes with a short AL and an unmeasurable ACD. CONCLUSIONS: The difference between postoperative SE and predictive refraction increased in eyes with the PACG and cataract over those with cataract only. For cataract operation in these eyes, the choice of a lower power IOL (about 0.5D) may be helpful to reduce this difference, especially for eyes with a short AL (less than 24 mm) and an unmeasurable ACD.
Cataract* ; Glaucoma, Angle-Closure* ; Humans

No abstract available.
Glaucoma, Angle-Closure ; Retinal Perforations

To find the factors that affect on the success rate of the trabeculectomy, we investigated 208 eyes of 158 patients with various types of glaucoma which had undergone trabeculectomy. The patients were followed up at least 3 month postoperatively. The criteria of success was maintenance of postoperative IOP below 21 mmHg. The total success rate was 89.4%. In young patients, the success rate was lower than that of older ones. The success rate of open angle glaucoma, acute angle closure glaucoma and chronic angle closure glaucoma were higher than that of congenital glaucoma and secondary glaucoma. Recently performed operation demonstrated higher success rate. The type of conjunctival flap, scleral flap and use of 5-fluorouracil were independent factors that affect on the success rate.
Fluorouracil ; Glaucoma ; Glaucoma, Angle-Closure ; Glaucoma, Open-Angle ; Humans ; Trabeculectomy*

PURPOSE: To compare the characteristics of visual field defect in primary open-angle glaucoma (HTG), normal-tension glaucoma (NTG) and primary angle-closure glaucoma (ACG). METHODS: We investigated the visual field defect of HTG (n=75), NTG (n=58), ACG (n=150) patients from March 2000 to November 2002. We compared the severity and asymmetry of the visual field defect in both eyes, the asymmetry of a more severely affected hemifield between both eyes, and the frequency of an early visual field defect with equivalently affected superior and inferior hemifield. RESULTS: The visual field defect was the severest in HTG, and the mildest in ACG. Asymmetry in severity of visual field defect between both eyes was the severest in HTG, and the mildest in NTG. The asymmetry of the affected hemifield between both eyes in terms of superior and inferior hemifields was most frequent in NTG. The frequency of the early visual field defect with equivalently affected superior and inferior hemifields occured mostly in NTG. ACG without an attack history had a more severe visual field defect than that with an attack history. CONCLUSIONS: The topographical pattern of the visual field defect was different in HTG, NTG, and ACG. There may be different pathophysiological mechanisms in the three types of primary glaucoma.
Glaucoma* ; Glaucoma, Angle-Closure ; Glaucoma, Open-Angle ; Humans ; Visual Fields*

The author measured the thick of centre-cornea for 42 patients angle closure glaucoma and 16 patients open angle glaucoma. The results: Centre-cornea in angle closure glaucoma and high IOP is clearly thicker than open angle glaucoma and than angle closure glaucoma potential. In the angle closure glaucoma, the thick of centre-cornea decrease and come to normal after the operation 3 months. Thick of centre-cornea in open angle glaucoma high IOP, potential and Vietnamese normal are equivalent. In patient open angle glaucoma, the thick of centre-cornea is not changing after the trabeculectomy
Trabeculectomy ; Glaucoma, Angle-Closure ; Cornea ; Glaucoma, Open-Angle

The purpose of this study was to determine whether preoperative topical antiglaucomatous therapy influences the outcome of subsequent trabeculectomy. We investigated 50 eyes of 36 patients with primary open anlge glaucoma(POAG)and 86 eyes of 77 patients with primary angle closure glaucoma (PACG), who had undergone trabeculectomy. All the patients had received topical antiglaucomatous therapy preoperatively and had been followed up for at least 6 months postoperatively. Both groups, POAG and PACG were divided into two subgroups according to the duration of preoperative antiglaucomatous therapy: (a)for less than 1 month and (b)for more than 6 months. The criterion for success was maintenance of postoperative intraocular pressure(IOP)below 21 mmHg without medication. The rates of success were compared at 1 week, 1 month, 3 months, and 6 months postoperatively. In POAG patients, the overall success rate was clinically significantly higher in subgroup (a)than in subgroup (b)(P<0.05). The success rate in subgroup (a)of POAG patients remained higher irrespective of class of antiglaucomatous medications(P<0.05). In PACG patients, the success rate was also higher in subgroup A, but it failed to reach clinical significance. Postoperative mean IOP was slightly lower in subgroup (a)of all the participants, but it was not clinically significant. Our study suggests that long-term use topical antiglaucoma medications can affect adversely the result of filtering surgery in POAG.
Filtering Surgery ; Glaucoma, Angle-Closure ; Humans ; Trabeculectomy*

No abstract available.
Glaucoma, Angle-Closure* ; Humans ; Pseudoxanthoma Elasticum*

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 Argon* ; Glaucoma, Angle-Closure ; Intraocular Pressure*