Microkeratome-assisted posterior lamellar keratoplasty in pseudophakic and aphakic corneal edema.
J Refract Surg
; 23(3): 272-8, 2007 Mar.
Article
em En
| MEDLINE
| ID: mdl-17385293
ABSTRACT
PURPOSE:
To evaluate the outcome of microkeratome-assisted posterior lamellar keratoplasty for replacing diseased endothelium in pseudophakic and aphakic corneal edema.METHODS:
Microkeratome-assisted posterior lamellar keratoplasty was performed on 10 eyes with pseudophakic or aphakic corneal edema. A nasal hinged 130- to 250-microm-thick flap was created with an automated microkeratome. The underlying 7.0-mm trephined button of deep stroma and endothelium was substituted with the same size donor button prepared by removing a same-sized flap and trephination of the remaining donor bed. The donor lenticule was fixated without sutures in position; the retracted flap was repositioned and sutured to the peripheral recipient tissue. The viscoelastic content of the anterior chamber was replaced by air to hold the graft in position.RESULTS:
All surgeries were uneventful except for one case of donor button posterior dislocation forming a secondary anterior chamber, which was corrected through donor button exchange 1 month postoperatively. All uncomplicated cases had stable refraction and corneal topography as early as 1 month after surgery, which was maintained in follow-up examinations. In two eyes, corneal astigmatism > 5.00 diopters was recorded. One case of prolonged re-epithelialization and two cases of epithelial interface ingrowth occurred.CONCLUSIONS:
Microkeratome-assisted posterior lamellar keratoplasty is an alternative to conventional penetrating keratoplasty for patients with diseased corneal endothelium, significantly reducing the time of visual rehabilitation. Determination of the relative advantages of this technique over penetrating keratoplasty and other recent alternative endothelial graft procedures relies on controlled prospective studies.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Afacia Pós-Catarata
/
Endotélio Corneano
/
Edema da Córnea
/
Transplante de Córnea
/
Pseudofacia
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limite:
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
J Refract Surg
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Irã