1,720,973 research outputs found
OPERATIVE BEHANDLUNG DER MYOPIE (RADIARE KERATOTOMIE)
No full textBeschreibung der weltweiten Adoption der radiaeren Keratotomie fuer die Behandlung der Myopie
Combined relaxing incisions and epikeratophakia for the correction of aphakia and high postkeratoplasty degree astigmatism
No full textA combined surgical procedure consisting of corneal relaxing incisions and epikeratophakia was used to correct high-degree postkeratoplasty astigmatism and aphakia in two patients. Both patients achieved their final refractive result as soon as 1 month after suture removal (2 and 3 months after surgery, respectively). Keratometric readings showed a reduction of approximately 20.00 diopters in one case and 10.00 D in the other, while the spherical equivalent changed from +10.00 D to +0.50 D in one eye and from +7.50 D to +1.75 D in the other. Spectacle correction was prescribed for both patients. At the last follow-up visit, about 2 years after surgery, these values were unchanged. The main advantage of the combined technique over two separate procedures was that postoperative visual rehabilitation was faster. Equally important was the stability of the refractive result over a long period of time after surgery, as well as the absence of negative effects on the preexisting corneal graft. In spite of the technical complexity of a combined surgical procedure, this approach probably represents the best choice in rare cases such as the ones reported here
Pneumococcal infection after temporary tarsorrhaphy for epikeratophakia
No full textThis paper discusses the onset of pneumococcal infection after temporary tarsorrhaphy tin apatient receiving epikeratophaki
Changing indications for intraocular lens removal
No full textObjective: To evaluate the effect of progress made in cataract surgery techniques on indications and results of intraocular lens (IOL) removal. Patients and mrthods: The charts of all patients who underwent IOL explantation at our institution between January 1990 and December 1992 were reviewed. Data recorded included patients' age and sex, time interval from implantation to removal, indication for IOL explantation, type of IOL removed, best-corrected visual acuity before and after explantation, and length of follow-up after removal. Indications were divided into six groups: (a) chronic, low-grade endophthalmitis; (b) pseudophakic bullous keratopathy; (c) luxation; (d) traumatic expulsion; (e) high-degree anisometropia; (f) acute endophthalmitis. Visual acuities were grouped according to good (20/20 to 20/40), acceptable (20/50 to 20/400), or poor (less than 20/400) outcome. Results: Fifty-two IOLs were removed from 52 eyes of 52 patients over the period of time considered in this study. Sixteen were anterior chamber IOLs, five were iris-fixated IOLs, and 31 were posterior chamber IOLs. Sixteen (30.8%) IOLs were removed for chronic, low-grade endophthalmitis, 15 (28,8%) for bullous keratopathy, 15 (28.8%) for luxation, three (5.8%) for traumatic expulsion, two (3.8%) for high-degree aniseikonia, and one (1.9%) for acute endophthalmitis. After explantation, vision equal to or better than 20/400 could be achieved by the vast majority of patients of all groups excepted for those with bullous keratopathy. Conclusion: The progress made in cataract surgery techniques over the last decade has greatly influenced the relative frequency of different reasons for IOL removal. Continuous monitoring of explanted IOLs is mandatory to evaluate further changes in surgical techniques and lens design
Sutureless phacoemulsification with implantation of a large-optic PMMA intraocular lens
No full textErgebnisse der nahtlosen phakoemulsifikation mit implantation einer 7.0mm intraokularlins
Epikeratophakia for the correction of myopia: Lenticule design and related histopathological findings
No full textHistopathology of epikeratophakia lenticules for the correction of myopia
Chronic low-grade endophthalmitis: A growing indication for intraocular lens removal
No full textThe aim of this study was to evaluate the effect of progress made in cataract surgery regarding the indications and results of intraocular lens (IOL) removal. For this purpose, the charts of all patients who had undergone IOL explantation at our institution between January 1990 and December 1992 were reviewed. Indications were divided into six groups: (a) chronic low-grade endophthalmitis; (b) pseudophakic bullous keratopathy; (c) luxation; (d) traumatic expulsion; (e) high-degree aniseikonia; (f) acute endophthalmitis. Visual acuities were grouped according to a good (1.0 to 0.5) acceptable (0.4 to 0.05) and poor (less than 0.05) outcome. Fifty-two IOL were removed from 52 eyes of 52 patients during the period considered in this study. Sixteen were anterior chamber, 5 were iris-fixated, and 31 were posterior chamber lenses. The removal rates were 30.8% for chronic, low-grade endophthalmitis (n = 16), 28.8% for bullous keratopathy (n = 15), 28.8% for luxation (n = 15), 5.8% for traumatic expulsion (n = 3), 3.8% for high-degree aniseikonia (n = 2), and 1.9% for acute endophthalmitis (n = 1) After explantation vision equal to or better than 20/400 was achieved by the vast majority of patients in all groups with the exception of those with bullous keratopathy. The progress made in cataract surgery over the last decade has greatly influenced the rate of complications leading to IOL removal. Continuous monitoring of explanted IOLs is mandatory to evaluate further changes in surgical technique and lens design
In vivo evaluation of epikeratophakia lenses by means of scheimpflug photography
No full textEpikeratophakia, Scheimpflug photography, optical densit
Electron microscopic examination of prelathed, lyophilized tissue used for epikeratophakia in humans
No full textElectron microscopic findings obtained in the analysis of prelathed, lyophilized tissue lenses for epikeratophaki
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