Long-term results after bare sclera pterygium resection with excimer smoothing and local application of mitomycin C.

Purpose: To evaluate the long-term results and complications after bare sclera pterygium excision with local application of mitomycin C and consecutive smoothing of the wound area with an excimer laser (PTK).

Methods: This was an observational case series of 133 eyes of 101 patients who underwent pterygium surgery using the bare sclera technique. Thirty-one of these treated eyes (23%) were recurrences with a mean of 3 previous operations.

Dental arch width in Class II Division 2 deep-bite malocclusion.

A severe phenotype of Angle's Class II Division 2 (II/2) malocclusion with extremely deep overbite has been called cover-bite, or "Deckbiss" in its early German descriptions. This distinctive occlusal variation is characterized by skeletofacial hypodivergence, mandibular dentoalveolar retrusion, excessive bony chin projection, reduced mesiodistal tooth size, maxillary incisor retroclination, and at least 100% overbite, covering at least 1 mandibular incisor in occlusion. In this study, maxillary and mandibular dental arch widths measured at the first molars and the canines were recorded from dental casts of 23 subjects with II/2 cover-bite malocclusions.

Comparison of visual acuities at different distances and defocus curves.

Purpose: To evaluate how visual acuities at different distances correlate with results from defocus curves.

Setting: Department of Ophthalmology and Institute of Medical Physics, University of Vienna, Medical School, Vienna, and Department of Ophthalmology, Krankenhaus St. Pölten, St.

Endothelial cell loss after phacoemulsification: relation to preoperative and intraoperative parameters.

Purpose: To evaluate the effect of the location of the corneoscleral tunnel incision as well as preoperative and intraoperative parameters on total and localized endothelial cell loss.

Setting: Department of Ophthalmology, Humboldt-University of Berlin, Berlin, Germany.

Methods: Fifty consecutive patients scheduled for routine cataract surgery were selected prospectively for this clinical trial.

[Evaluation of polyurethane stent implantation for the treatment of complete obstruction of the nasolacrimal system: 8-month follow-up and complications].

Unlabelled: Dacryocystorhinostomy is still the standard procedure complete stenosis of the nasolacrimal duct. New methods try to preserve the natural lacrimal pathway. Song implanted in 1995 a nasolacrimal polyurethane stent through the nasolacrimal duct.

[Long-term stability of astigmatism outcome after arcuate lamellar keratotomy. 3-year results of a prospective study].

Introduction: The correction of low to moderate astigmatism is possible today by means of photoablation (PRK), while the treatment of moderate and higher astigmatism still involves refractive keratotomy. Experience has shown that cataract surgery, using modern tunnel techniques with self-healing incisions, results in earlier stability in both the refractive outcome and wound healing. In this study, we attempted to combine the advantages of lamellar keratotomy with those of a pair-wise T-incision as arcuate lamellar keratotomy (ALK).

[Radiotherapy of exudative senile macular degeneration. A prospective controlled study].

Unlabelled: Despite the successful therapy of subretinal neovascular membranes by laserphotocoagulation there are many problems to be overcome. In the case of subfoveolar neovascularization, photocoagulation leads to a sudden decrease in visual acuity. Recently radiotherapy is considered as an alternative.

[High resolution functional magnetic resonance tomography with Gd-DTPA eyedrops in diagnosis of lacrimal apparatus diseases].

Unlabelled: Both dacryocystography and dacryoscintigraphy are well established in the evaluation of stenoses of the lacrimal drainage system. They provide limited information about the ductal anatomy itself and about periductal structures. MR imaging was evaluated for its capability to directly visualize the lacrimal drainage system in detail and simultaneously provide functional characterization of dacryostenosis.

[Prospective comparison of 2 multi-focal lens models].

Background: The functional results of two different types of multifocal intraocular lenses (based on the diffractive and refractive principle, respectively) were investigated prospectively.

Materials And Methods: Altogether 50 patients who had a multifocal lens implanted were examined 4-6 weeks postoperatively. Visual acuity for distance and near vision, contrast sensitivity, low contrast visual acuity and glare visual acuity were investigated.

Causes of severe decentration and subluxation of intraocular lenses.

Background: Severe decentration and subluxation of intraocular lenses (IOLs) may lead to double vision, glare and deterioration of vision to the point of functional aphakia. The purpose of the present study was to analyse causes for severe IOL dislocation.

Material And Methods: Between January 1989 and January 1996, 37 patients required IOL exchange because of decentrated or subluxated posterior chamber lenses.

A prospective evaluation of a diffractive versus a refractive designed multifocal intraocular lens.

Objective: To evaluate prospectively a diffractive (811E, Pharmacia; power add +4.0 D) versus a refractive (PA154N, Allergan; power add +3.5 D) designed multifocal lens.

[Effect of local administration of mitomycin C on intraocular pressure].

Background: Animal studies suggest that the decrease of intraocular pressure after application of mitomycin C is particularly mediated by toxic effects on the substance of ciliary body. Moreover it has been shown that the concentration of mitomycin C after topical application in the aqueous humour is as high when performing fistulating surgery. In this prospective study we wanted to investigate whether the topical application of mitomycin C would result in a significant decrease of intraocular pressure.

[Corneal astigmatism after pterygium excision and subsequent phototherapeutic keratectomy with the excimer laser (193 rm)].

Background: Phototherapeutic keratectomy with the excimer laser is a suitable procedure for corneal smoothing after pterygium excision. In this study the effect of postoperative excimer laser smoothing on induced and absolute astigmatism after pterygium surgery was investigated.

Materials And Methods: 60 of 53 eyes underwent pterygium surgery using a bare sclera technique.

[Incidence of recurrence after primary pterygium excision, phototherapeutic keratectomy with the ArF:Excimer laser and local mitomycin C administration].

Background: In this clinical trial the recurrence-rate after primary pterygium-excision, phototherapeutic keratectomy with the ArF:excimerlaser and local application of mitomycin C should be estimated.

Material And Methods: Forty eyes of 38 patients underwent primary pterygium-excision using a bare-sclera technique. All patients underwent phototherapeutic keratectomy (PTK) with the ArF:excimerlaser of the wound region.