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Biomedical subjects

E Malbran

Publications and source records attributed to E Malbran.

At least 19 recordsLinked to original sources
PubMed1994

[Indications and techniques for scleral fixation and suturing of intraocular lenses to the posterior surface of the iris].

The concept of suturing posterior chamber lenses to the ciliary body and sclera as the preferred method for a primary or secondary implantation when there is no capsular or even iris support, particularly at the time of penetrating keratoplasty, was pioneered by Enrique Malbran, M.D., Director of the Malbran Ophthalmology Center in Buenos Aires, Argentina (the current President of the Pan American Association of Ophthalmology). The significant interest existing now with this type of procedure is due to the fact that there are a number of eyes being seen for penetrating keratoplasty where either intracapsular surgery or complicated extracapsular surgery was done and an anterior chamber lens implanted. Some of these eyes later developed corneal decompensation. At the time of penetrating keratoplasty it is in the benefit of these patients for the surgeon to place an intraocular lens into the posterior chamber, away from the endothelium of the graft. The long-term experience with such lenses--more than nine years--is very favorable.

Ciliary Body↗
PubMed1993

Closed-system phacoemulsification and posterior chamber implant combined with penetrating keratoplasty.

The main intraoperative difficulties of performing a procedure combining open-sky extracapsular cataract extraction, implantation of posterior chamber intraocular lens (PC-IOL), and penetrating keratoplasty ("triple procedure"), most frequently caused by the uncompensated posterior pressure created when the cornea is open, include incomplete capsulorhexis, incomplete aspiration-irrigation of the cortex, uncertain placing of the IOL, posterior capsule rupture, choroidal effusion, and even expulsive hemorrhage. We recommend a two-step procedure that eliminates these problems: The first step begins with removal of epithelium, half-thickness trephining of the cornea, and capsulorhexis; proceeds through phacoemulsification and aspiration-irrigation; and ends with implantation of the PC-IOL, using a pressurized system. The second step is penetrating keratoplasty. In the six cases undergoing this procedure, none of these complications developed or even tended to develop. Although the follow up in these six cases is very short (from 1 to 6 months), the advantage of the technique is that it effectively precludes the above mentioned intraoperative complications, which could affect late results.

Aged↗
PubMed1991

Vitreoretinal surgery performed through a 60-diopter lens.

For vitreoretinal surgery, we recommend using a 60-diopter lens for indirect ophthalmoscopy through the operating microscope without internal illumination. This device has undergone extensive clinical testing since 1986 with excellent results.

Humans↗
PubMed1990

Retinal break type and proliferative vitreoretinopathy in nontraumatic retinal detachment.

In a retrospective study of 1180 consecutive eyes operated for retinal detachment, vitreous traction on the rent was the determining factor for the development of proliferative vitreoretinopathy (PVR). Round, multiple, small holes in equatorial degeneration (retinogenic) and macular holes in which no vitreous traction on the rent was found did not complicate with PVR. Retinal detachment caused by horseshoe or crescent-shaped tears with evidence of vitreous traction (vitreogenic) developed PVR to a variable degree: in 171 (25.8%) senile myopic, 19 (44.2%) senile-myopic aphakic, 23 (20.2%) typical aphakic, and 32 (78.1%) patients with giant tears. We also found that retinogenic retinal detachments affected younger age groups more than did vitreogenic retinal detachments.

Adolescent↗
PubMed1989

Myopic and nonmyopic aphakic retinal detachment: time interval and location of breaks.

Of 471 retinal detachments occurring in aphakic patients after undergoing intracapsular cataract extraction, we reviewed 318 eyes with uncomplicated aphakia (no vitreous loss). Myopic eyes had equatorial breaks 38% of the time versus 19% for nonmyopic eyes. The time interval between aphakia and detachment was shorter for myopic than for nonmyopic eyes. Our results showed a significant incidence of: (1) equatorial breaks in myopic eyes versus nonmyopic eyes (P less than 0.005), and (2) earlier detachments for myopic eyes versus nonmyopic eyes (P less than 0.005). The presence of equatorial breaks seemed to be associated with earlier retinal detachments.

Aphakia, Postcataract↗
PubMed1986

Lens guide suture for transport and fixation in secondary IOL implantation after intracapsular extraction.

The authors, after analyzing the different clinical situations where a secondary IOL implantation is indicated, describe 3 surgical techniques based on a common premise relying on the use of lens guide sutures for transportation or transportation and permanent fixation of the IOL's loops. The transportation sutures makes secondary implantation easier in anterior chamber lenses in technique I. The double purpose of transportation and permanent fixation at the angle permits a safe procedure with anterior chamber lenses in cases with no iris support in technique II and the possibility of sulcus or ciliary body fixation of a J type posterior chamber lens after ICCE in technique III.

Cataract Extraction↗
PubMed1979

Punctiform and polychromatic pre-Descemet's dominant corneal dystrophy.

A new type of pre-Descemet's corneal dystrophy is described. The opacities are punctiform, polychromatic, of uniform size, and evenly distributed over the whole cornea. The diagnosis is made only by slit lamp because there is no visual impairment. The disease is hereditary and follows the autosomal mode of inheritance with a high percentage of penetrance, expressivity, and specificity in 4 successive generations, in which 8 affected members were observed among a total of 46.

Adult↗
PubMed1977

The influence of new surgical procedures on retinal pathology in aphakia after congenital cataract surgery.

After reviewing the incidence of aphakic retinal detachment more specifically on eyes that have been submitted to surgery for congenital cataracts, the authors make some remarks and discuss the value, the advantages, and the yet unknown risks that the new methods of lens removal may have as regards retinal pathology. Special consideration is given to the balance of the advantages: more complete elimination of the opacities, lower incidence of immediate morbidity, better visual results and postoperative possibilities of retinal examinations; against the, as yet unknown, late retinal complications with new procedures such as ultrasonics, phacoemulsification, pars plana approach for lens removal, etc. Moreover, bearing in mind the typical late onset of retinal detachment in aphakic eyes after congenital cataract surgery with the older methods, such as linear extraction and multiple discussions, special attention is given to this feature as a comparative landmark for a prospective evaluation of recent methods of extracapsular lens surgery.

Cataract↗