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Biomedical subjects

J Faulborn

Publications and source records attributed to J Faulborn.

At least 73 records · Page 4Linked to original sources
PubMed1978

Proliferations in the vitreous cavity after perforating injuries. A histopathological study.

Histologic specimens from 32 human eyes that had been enucleated at different intervals after servere injuries were studied. Following the rules of general wound repair, intraocular proliferations start two to four days after the injury and may be massively developed within one week after injury. Their cell composition and extent are related to the site and extent of tissue damage and the amount of hemorrhage. The findings support the recommendation of a primary vitreous repair in severely injured eyes.

Adolescent↗
PubMed1978

Surgical complications of pars plana vitreous surgery.

Evaluation of 200 consecutive pars plana vitrectomies shows delayed corneal epithelial healing after intentional scraping and formation of a posterior subcapsular cataract, presumably due to exposure to inadequate infusion fluids. Posterior retinal holes occur frequently, whereas entrance site complications have been reduced to an acceptable minimum. Temporary rise in intraocular pressure is common.

Cataract↗
PubMed1978

Vitreous morphology after perforating injury treated by primary vitrectomy.

Perforating eye injuries result in patterns of damage which vary greatly in extent and severity. In undertaking reconstruction of the injured eye the ophthalmologist requires instruments and materials designed for handling each type of traumatized tissue. Problems associated with injury to the vitreous are logically dealt with by purpose-built vitrectomy instruments with the object of attaining a satisfactory and safe vitreous configuration in a visually useful eye.

Eye Injuries↗
PubMed1977

Primary vitrectomy as a preventive surgical procedure in the treatment of severely injured eyes.

The results of treating 72 severely injured eyes by primary vitrectomy combined with anterior and posterior segment reconstruction are presented. This approach aims at improving the visual prognosis by allowing fundus examination and immediate retinal surgery where indicated, and by preventing the more severe complications associated with vitreous and anterior segment disorganisation. The prospects for improved visual results and the problems encountered, particularly secondary haemorrhage, are discussed.

Adolescent↗
PubMed1977

Results of primary vitrectomy in severe perforating ocular injuries.

Vitrectomy in the initial treatment of perforating injuries is indicated when lens damage involves the posterior capsule, when anterior segment disruption involves vitreous, with extensive vitreous haemorrhage and overt or suspected retinal damage, in removal of a non-magnetic intraocular foreign body and in perforating injury with endophthalmitis. The visual results in 72 eyes followed for up to 6 years are: blind or enucleated 19 (26%), acuity less than 0.1 in 14 (19%), 0.1-0.4 in 18 (25%) and 0.5 or better in 21 (30%). Retinal detachment occurred in 27 eyes with successful reattachment in 18 (66%).

Eye Diseases↗
PubMed1977

[Experiments on suture material prolene 10-0 and vicryl 11-0 compared with nylon 10-0 in the rabbit cornea (author's transl)].

Synthetic absorbable suture material Vicryl 11-0 and not absorbable Prolene 10-0 are tolerated well by the corneal tissue as compared with nylon 10-0. Vicryl 11-0 sutures remained intact for only 13.2 days on an average, this is too short for normal corneal surgery. As nylon shows signs of absorption with time Prolene may be preferable to nylon where permanent sutures are necessary.

Absorption↗
PubMed1977

[Cyclocryotherapy of haemorrhagic glaucoma: clinical long time and histopathologic results (author's transl)].

67 eyes with a haemorrhagic glaucoma have been treated with different methods of cyclocryotherapy. 54 of the 67 patients were painless after a follow-up from 6 to 53 months. In 49 eyes the intraocular tension was under 25 mm Hg regardless of the applicationmethod used. 9 of the 67 eyes were found to be phthistic most of them in the series with the longest follow-up. The histopathologic findings of 8 eyes which had been excised after different postoperative periods show severe necrosis and chronic tissue reaction following cyclocryotherapy.

Aged↗
PubMed1976

[Preventive surgery in the treatment of severely injured eyes: late results, complications, postoperative care (author's transl)].

Definitive reconstruction of the eye is the main objective of surgery in severe trauma. Therefore the damaged lens and vitreous have to be primarily removed in combined injuries to the anterior and posterior segments. 81 cases, treated according to this, have been followed-up from 6 months to 6.2 years. 43 have a VA of 0.1 or better, 18 at least a useful visual field. Main causes of blindness in 20 eyes are retinal detachment in 10, hemosiderosis in 4, phthisis in 3 eyes. 8 of the eyes lost through retinal detachment had a massive intraocular hemorrhage during the post-traumatic period. This hemorrhage is discussed as a main factor in development of retinal detachment with a poor prognosis. In 9 other cases of severely injured eyes with a massive posttraumatic intraocular hemorrhage the blood was removed from the vitreous cavity by intraocular irrigations with Ringer's solution. In 4 of these cases visual function could be retained.

Adult↗
PubMed1976

[Late complications with anterior chamber lenses (author's transl)].

6 intraocular lenses (type Dannheim) which had given good optical results after implantation had to be removed after 7-19 years because of keratopathy, iritis, and secondary glaucoma. The most important finding was an advanced arrosion of the supporting supramide loops. This often caused breaking of the loops and was a major factor for late complications.

Adult↗
PubMed1975

Animal experiments on an absorbable synthetic thread made of polyglycolic acid (PGA) in corneal surgery.

Monofilaments of the absorbable synthetic thread Dexon made from PGA have properties similar to nylon 10-0. Experiments with intra-lamellar implantation of the monofilament in rabbit corneas showed the same good material tolerance as nylon 10-0. Perforating corneal wounds were closed with interrupted and running sutures from PGA monofilaments, respectively. One week post-operatively, increased intraocular pressure caused a wound rupture but not a thread rupture. Two weeks post-operatively an increased intraocular pressure of more than 300 mm Hg could no longer rupture the wound. Slit lamp and histological examinations revealed symptoms of absorption after the second week. According to our findings, PGA monofilaments may be suitable for corneal surgery in patients.

Absorption↗
PubMed1975

Studies on the tolerance of silk, nylon, dacron and collagen suture material in the cornea of the rabbit.

With rabbit corneas we did comparative biomicroscopical and histological investigations on material tolerance of the following threads at present used in microsurgery: Barraquer silk (virgin silk), nylon 30 mum (Tübinger nylon), dacron (polyester) 40 mum and plain collagen 7-0. The sutures were implanted into the cornea intra-lamellarly, completely under the microscope. The examinations showed only very little tissue reaction in all these materials.

Animals↗