ISSN:0277-3740    

出版商:OVID    

年代:1982

数据来源: OVID

ISSN:0277-3740    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

This paper studies the clinical results of 150 cases of penetrating keratoplasties using corneas preserved in McCarey-Kaufman media and Na Hyaluronate (Healon®) at the time of surgery. The 150 transplants had been performed between July 1980 and January 1982 by the author. A series of 30 grafts done between 1978 and 1979 by the staff of a medical center in which the author was one of the surgeons, was used as a control for the use of Healon®; all grafts had been preserved in MK media. Results showed 96.6% clear grafts during the first postoperative week and 97.3% clear grafts at the end of 6 months. There were five cases of primary tissue failure, but no cases of infection related to the MK-stored corneas. The use of Healon® facilitated the surgical procedure and protected the endothelium of the graft. This was evident by the extreme transparency of the graft postoperatively and its rapid return to normal thickness when compared to control grafts. No instances of inflammatory reaction to Healon® were detected, but a tendency to increased intraocular pressure was noticed if large amounts of the substance were injected into the eye. It is concluded that MK-stored corneas protect the endothelium and expand the viability of graft endothelium. The additional use of Healon® at the time of surgery facilitates the surgical procedure and provides additional protection to the endothelium of the graft.

ISSN:0277-3740    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

18 cases of culture-proven and one case of histologically diagnosed fungal keratitis treated at the University of Minnesota over a 10-year period are reported.AspergillusandCandidarepresented the largest number of organisms cultured. Four cases ofAlternariaspecies were cultured, the largest percentage in any series reported to date. Although Pimaricin was an effective mode of topical therapy in many of these patients, 70% were left legally blind and two eyes had to be enucleated, indicating that this disease is a serious ocular infection in the north-central region of the United States

ISSN:0277-3740    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

We describe two cases of presumed drug-induced cicatrizing conjunctivitis simulating ocular pemphigoid following pilocarpine administration in one patient and demecarium in the other. Cessation of the drug was followed by stabilization of the disease and conjunctival transplantation in one patient resulted in restoration of a normal ocular surface.

ISSN:0277-3740    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

Hydrophobic hard intraocular lenses (IOL) and hydrophilic hard and soft IOLs were implanted in the eyes of 21 adult cats. During surgery, a 45-second purposeful contact was made between the lens surface and the cornea endothelium. The cats were followed for 6 weeks, sacrificed, and the corneas were examined by Scanning Electron Microscopy (SEM). The hydrophobic hard lenses produced permanent corneal edema and SEM revealed large areas of damaged endothelial cells. A slight cornea epithelial edema was evident in the first 2 weeks postoperative in eyes with hard hydrophilic lens implants. Soft lenses caused mild iritis and striate keratopathy that lasted from 2 to 6 weeks. SEM revealed numerous microvilli but no damage to the cell membranes. These results suggest that hydrophilic surfaces produce less endothelium damage. Whether the ocular inflammation caused by soft hydrophilic lenses is the result of inherent properties of the material or the result of material impurity needs further investigation.

ISSN:0277-3740    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

Sodium hyaluronate is a viscoelastic substance used for vitreous replacement and as a protective device for the corneal endothelium. Its structure resembles that of a sponge of mucopolysaccharide chains with water trapped between its molecules. A 0.1% dilution of this preparation was used as tear replacement in 20 patients with severe keratitis sicca. Pain and photophobia improved rapidly in all cases following the application of Na hyaluronate. Relief of symptoms and improvement in vision has been maintained in most patients for a period of over 1 year.

ISSN:0277-3740    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

Keratokyphosis is a procedure of refractive corneal surgery in which the radius of curvature of the corneal surface is changed by gluing a convex synthetic lens onto the corneal surface in aphakia and a concave synthetic lens in myopia. Subsequently a corneal lamella is removed parallel to the outer surface of the glued-on lens. By means of a measuring device, the effect of the glued-on lens on the intraocular pressure during the applanation of the corneal surface was examined in the donor eye. The result was that the intraocular pressure remains unchanged when a synthetic lens is used and that the suction ring system developed by Barraquer can be used in keratokyphosis.

ISSN:0277-3740    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

In an attempt to simplify the surgical correction of myopia and to avoid some of the side effects of radial keratotomy, we undertook a series of peripheral wedge resections and trephinations in a non-human primate model. Although those procedures in which sutures were used circumferentially along with wedge resection or trephination resulted in significant flattening of the cornea as long as sutures were left in place, we found that, upon suture removal, the corneas returned to their preoperative configurations. This form of surgery was also performed in one clinical case. The results paralleled those seen in the non-human primate model.

ISSN:0277-3740    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

A rapidly growing, pigmented mass of the ciliary body and episclera developed in a healthy woman who recently had had herpes zoster ophthalmicus. Clinically the lesion simulated a malignant melanoma with extrascleral extension; histopathologic examination of the iridocyclectomy specimen, however, revealed a granuloma with a central area of coagulative necrosis and secondary pigment dispersion. The temporal relationship between the onset of herpes zoster ophthalmicus and the development of the granuloma suggests that the latter was a delayed manifestation of herpes zoster ophthalmicus.

ISSN:0277-3740    

出版商:OVID    

年代:1982

数据来源: OVID