Annals of Ophthalmology - Glaucoma

Chitosan is an antifibroblastic biopolymer derived from the exoskeleton of insects and crustaceans. The ability of chitosan to inhibit fibroplasia after glaucoma fistualizing procedures in rabbits was investigated. Standard fistualizing procedures were performed under light general anesthesia in three groups of experimental animals. In one group (group I), chitosan was applied only during the perioperative period. In a second group (group II), eyes received subconjunctival injections with chitosan once daily for 7 days after surgery, and in a third group (group III), chitosan-soaked collagen mesh sponges were implanted beneath the conjunctiva after surgery. A control group consisted of eyes that were not treated with chitosan. Introcular pressures and outflow facilities of all eyes were similar for the entire 6-week period of the study, and histologic examination of selected eyes from all three groups revealed no differences in the extent or character of the postoperative fibroplasia. No undesirable side effects were noted in any animal as a result of the procedure.

G. A. Hirz

P. J. Gardner

G. R. Christensen

Annals of ophthalmology. Glaucoma

The effect of chitosan on glaucoma filtering surgery

壳聚糖对青光眼滤过手术的影响

A clinical experimental study was performed to ascertain the influence of central vision on peripheral vision. The vision of 10 healthy young adults was examined using a Humphrey field analyzer while they stared at a rotating spiral figure instead of a standard fixation target. There was a clear decrease in the sensitivity of the research subjects' peripheral vision with the rotating spiral target compared with the standard fixation target. In the research subjects the rotating spiral target induced a sense of being drawn into the spiral's center, and it had the effect of maintaining their fixation during the visual field test. Although these results may have been induced by maintainance of visual attention at the center of the perimeter, just as in the cocktail party phenomenon, the authors suggest that central vision and peripheral vision are transmitted through two different mechanisms that reciprocally influence each other as a parallel distributed processing system.

Ishihara M

Ishihara H

Yuda K

Ohno S

周辺視野に対する中枢性作用:rotating spiral targetを用いた実験

周边视野的中枢性作用：使用旋转螺旋目标的实验

A 45-year-old man with ulcerative colitis who complained of blurred vision in his left eye was examined. Ophthalmoscopy and fluorescein angiography revealed serous retinal detachment in the left macula. The ulcerative colitis and central serous chorioretinopathy disappeared concurrently. It is believed that central serous chorioretinopathy observed in the patient may be an ocular manifestation of ulcerative colitis.

K. Kitagawa

S. Hayasaka

Central serous chorioretinopathy in a patient with ulcerative colitis

溃疡性结肠炎患者中的中心性浆液性脉络膜视网膜病变

Since the widespread use of operating microscopes and artificial intraocular lenses in the early '80s, photoretinitis of the macula and paramacular area has been a well-documented clinical entity. A case is reported of a unilateral paramacular chorioretinal phototrauma after cataract extraction and posterior chamber intraocular lens implantation. Indocyanine-green angiography (ICG-A) demonstrated the atrophy of the choriocapillaris, which was seen as a hypofluorescent area.

Z. Biro

R. N. G. Vianna

G. Sallet

J.-J. Delaey

Operating microscope light-induced chorioretinal phototrauma

手术显微镜光诱导的脉络膜视网膜光损伤

The epidemiologic features and results of management of 22 cases of retained intraocular foreign bodies seen over a period of 6 months are presented. Highlights of the study include the occurrence of such injuries in young men, the predominance of chisel-and-hammer injuries, the lack of a high degree of reliability of electroretinographic findings, and the improved postoperative visual acuity and good visual prognosis after surgery in the majority of patients. Based on their favorable experience, the authors advocate early surgical management by pars plana vitrectomy and foreign body removal using a foreign body forceps.

R. V. Azad

D. Talwar

M. Chandra

Y. R. Sharma

Retained intraocular foreign bodies : A reappraisal

眼内异物滞留：重新评估

We report a case of a patient with a corneal ulcer involving the inferonasal incision in the left eye 10 months following bilateral 8 incisional radial keratotomies, with multiple enhancement operations. The ulcer was culture positive for Pseudomonas aeruginosa and responded to fortified antibiotic therapy over a 2-week period. Radial keratotomy incisions that have undergone repeat enhancement operations may predispose patients to late-onset keratitis.

出版信息	出版商: American Society of Contemporary Ophthalmology，出版周期: ，期刊类型: journal，开源期刊: 否
基本数据	创刊年份: 1996，原创研究文献占比: ，自引率:， Gold OA占比:

Annals of Ophthalmology - Glaucoma

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The effect of chitosan on glaucoma filtering surgery

周辺視野に対する中枢性作用:rotating spiral targetを用いた実験

Central serous chorioretinopathy in a patient with ulcerative colitis

Operating microscope light-induced chorioretinal phototrauma

Retained intraocular foreign bodies : A reappraisal

Delayed-onset Pseudomonas aeruginosa keratitis following radial keratotomy

Delayed-onset Pseudomonas aeruginosa keratitis following radial keratotomy

Delayed-onset Pseudomonas aeruginosa keratitis following radial keratotomy

Delayed-onset Pseudomonas aeruginosa keratitis following radial keratotomy

Delayed-onset Pseudomonas aeruginosa keratitis following radial keratotomy