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Query: UMLS:C0022568 (keratitis)
 5,133 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We describe a technique and report a retrospective evaluation of myopic keratomileusis in situ. Surgery was performed on 32 eyes, with a mean follow-up time of 128.7 days (range 90 to 194 days). The average reduction of myopia was 8.48 diopters (D) when measured by refraction and 3.96 D by keratometry (minor axis). A statistically significant Pearson correlation coefficient of 0.49 (P = .01) was found between these two variables. Postoperative mean manifest spherical equivalent was -1.70 D (standard deviation 2.54 D). Mean cylinder correction increased -0.48 D (range -2.25 to 2.00 D). Uncorrected visual acuity improved after surgery in all eyes, but in 14 eyes the best corrected visual acuity diminished. Multiple regression model disclosed a limited predictability of the technique. Complications included diminution of best corrected visual acuity, under- and overcorrections, increase in keratometric astigmatism and cylinder correction, keratitis, delayed corneal epithelialization, interface amorphous deposits, monocular diplopia, interface epithelialization, and opacification. The most frustrating was an elusive postoperative cycloplegic refraction. In our hands, myopic keratomileusis in situ was not a technically safe, precise, and predictable technique for correction of myopia. Further improvement in the technique and equipment may provide better results.
J Cataract Refract Surg 1991 Jul
PMID:Myopic keratomileusis in situ: a preliminary report. 189 19

This paper describes the results of radiotherapy in early stage orbital non-Hodgkin's lymphoma. From 1970 to 1985, 33 orbital localizations in 30 patients were treated. The total dose applied ranged from 21 to 57 Gy (2 Gy per fraction), two-thirds of all patients received a dose of 40 Gy. The complete-response rate was 94% and the 10 years actuarial survival was 90%; no significant difference in survival was observed between patients with low grade or intermediate grade lymphoma. No local recurrence was detected during follow up and 20% of the patients developed generalized disease. Two optic nerve neuropathies and three retinopathies were observed in five patients, four of these occurred at a dose level of less than 43 Gy. Keratitis occurred in 58% of the patients treated, a sicca syndrome in 30% and cataract of different grades in 58% of the patients treated. Although local control was excellent, severe complications were observed in 13% of the patients who received a dose of less than 43 Gy.
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PMID:Results of radiotherapy in patients with stage I orbital non-Hodgkin's lymphoma. 194 11

We performed a prospective randomized clinical trial of 4% polyacrylamide (Orcolon) and 1% sodium hyaluronate (Healon) in routine extracapsular cataract extraction with posterior chamber lens implantation or in secondary anterior chamber lens implantation. Seventy consecutive patients were enrolled. The viscoelastic agents were compared in four areas intraoperatively: ease of injection, ease of removal, clarity of field and ability to hold back ocular tissues. Healon was significantly superior to Orcolon in all four areas. Further evaluations were performed on the first day and at 2 weeks postoperatively. Measurements of intraocular pressure (IOP) by Goldmann applanation and evaluations of corneal edema, epithelial keratitis and anterior chamber cellular reaction were recorded. Multivariable statistical analysis revealed only one difference between the two groups: significantly more patients in the Orcolon group (eight cases) than in the Healon group (two cases) had an IOP of 21 mm Hg or greater on the first postoperative day.
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PMID:A prospective comparison of 4% polyacrylamide (Orcolon) and 1% sodium hyaluronate (Healon) in cataract and intraocular lens implant surgery. 220 67

The authors implanted intraocular lenses (IOL) in 780 eyes and considered complications of this surgery, dividing the complications into intraoperative and postoperative, the latter early and late. The most frequent intraoperative complications were: hyphema, vitreous injury, pupil deformation with an IOL in the anterior chamber (AC), and hyphema and corneal lesions with an IOL in the posterior chamber (PC). Among the early postoperative complications of an IOL in the AC the authors noticed striate keratopathy and uveal flare and postoperative transitory ocular hypertension and striate keratitis with an IOL in the PC. Moreover, in late postoperative complications in AC implantation they observed: cystoid macular edema, bullous keratitis, retinal detachment, late uveitis, opacification of posterior capsule, eccentric displacement of the IOL, and less frequently, cystoid macular edema in PC implantations. The authors prefer IOL implantation in the PC after extracapsular cataract extraction, since this surgery causes less problems in the cornea, vitreous, and retina.
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PMID:Intraocular lens complications. 224 19

The processes contributing to the maintenance of the natural, atmospheric, ozone layer, which screens the earth's surface from solar ultraviolet radiation at wavelengths below 300 nm, are described. The possible adverse effects of man-made chemicals such as chlorofluorocarbons (CFCs) on this layer are outlined. Consideration of the flux of ultraviolet light reaching the earth's surface as a function of the ozone concentration and other factors allows the effect of ozone changes on ocular health to be evaluated. It is concluded that the changes of the order of a few per cent that are predicted by current models of the atmosphere, and which are comparable with natural fluctuations in ozone, would have relatively little effect on the incidence of solar keratitis at the cornea. Larger changes, in the order of 50%, would be expected to have a significant effect. There might also be an increase in the incidence of brunescent cataract. Ozone changes would have a negligible effect on the amounts of solar radiation reaching the retina.
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PMID:Ocular hazards arising from depletion of the natural atmospheric ozone layer: a review. 226 66

We report a chronic keratouveitis following an eye injury, the etiology of which remained obscure despite repeated corneal scrapings and cultures. Eventually, the diagnosis was established by culturing Mycobacterium chelonei from a corneal biopsy specimen. Topical amikacin resolved active inflammation, but dense corneal scarring and a cataract remained. Visual rehabilitation was achieved through a combined penetrating keratoplasty, extracapsular cataract extraction, and intraocular lens implantation. This case illustrates that there should be a high index of suspicion of atypical mycobacteria when faced with any unusual keratitis, particularly following penetrating injuries and corneal grafts.
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PMID:Mycobacterium chelonei keratopathy with visual rehabilitation by a triple procedure. 227 Jan 67

Corticosteroids are widely used in the treatment of inflammatory and immunological diseases of the eye. They are given by three routes: topical application, periocular injection and systemic administration. Topical application, periocular injection and systemic administration. Topical application is used for anterior inflammatory diseases, such as conjunctivitis, keratitis or anterior uveitis. Posterior uveitis is treated with systemic and local injections. Herpetic keratitis is a contra-indications to the use of corticosteroids. Ocular side-effects are observed with systemic administration as well as with topical applications and local injections. They include posterior subcapsular cataract, rise of intraocular pressure and even glaucoma, failure in healing of corneal wounds and exacerbation of ocular infections. These side-effects are not always reversible when treatment is stopped. Prevention consists of repeated eye examination.
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PMID:[Corticosteroids and ophthalmology]. 232 Aug 79

The recent public concern regarding sunglass protection from UV energy has sparked a significant debate among those in the research community and industry. This debate grows out of concern for the known effects of UV energy in producing or contributing to eye effects such as keratitis, cataract formation, and retinal damage. The ANSI Z80.3 Standard addresses itself to this issue by setting levels of UV energy that are permitted to be transmitted in various labeling categories for over-the-counter sunlenses. One important issue is that the ANSI Standard does not provide for an absolute block of UV energy in any category of these lenses. Because the technology to provide this sort of total UV block is currently available, it is argued that there should be at least one category of lens that is fully protective in the UV range.
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PMID:Does the ANSI Z80.3 nonprescription sunglass and fashion eyewear standard go far enough? 238 85

Elective penetrating keratoplasty has been performed on an outpatient basis on 37 patients since July 1987. The commonest indications have been herpetic keratitis, keratoconus, and pseudophakic or aphakic corneal oedema. Local anaesthesia, with little or no sedation, was used in most cases, and only three patients had a general anaesthetic. Accompanying procedures have included anterior vitrectomy, extracapsular cataract extraction with posterior chamber lens implantation and IOL exchange. The results demonstrate that outpatient keratoplasty is a safe, effective alternative to hospitalisation, and has a very high level of patient acceptance.
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PMID:Outpatient penetrating keratoplasty. 262 28

An epidemiological survey of blindness and low vision in Chongqing showed that in a random sample of 13,832, there were 62 cases of bilateral blindness and 97 cases of bilateral low vision, the prevalences being 0.45% (male 0.38%, female 0.52%) and 0.70% (male 0.50%, female 0.90%) respectively. The prevalences in people over 60 years of age were significantly higher. The important blinding diseases were cataract, infectious keratitis, corneal turbidity, glaucoma, trachoma, and ametropia/amblyopia.
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PMID:[An epidemiological survey of blindness and low vision in Chongqing]. 263 8


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