Iatrogenic Keratectasia after Refractive Surgery - Causes, Prophylaxis, Therapy. / Iatrogene Keratektasie nach refraktiver Chirurgie Ursachen, Prophylaxe, Therapie.
Klin Monbl Augenheilkd
; 240(6): 783-794, 2023 Jun.
Article
in En, De
| MEDLINE
| ID: mdl-37348513
ABSTRACT
Iatrogenic keratectasia is induced thinning and protrusion of the cornea after laser refractive surgery. Known risk factors include an excessively thin postoperative residual stromal bed, a thicker flap, or preoperatively undetected evidence of preexisting subclinical keratoconus. The rate of post-refractive ectasia in eyes without identifiable preoperative risk factors is 20 per 100â000 eyes for photorefractive keratectomy, 90 per 100â000 eyes for laser in situ keratomileusis, and 11 per 100â000 eyes for small incision lenticule extraction. Traditional screening tools for preoperative risk include the ectasia risk score system and percentage of tissue alteration. More recent methods include corneal elastography and epithelial mapping, in addition to Artificial Intelligence methods for data analysis. Therapy includes contact lenses, cross-linking, implantation of intracorneal ring segments, penetrating or lamellar keratoplasty, and, in early studies, implantation of corneal lenticules.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Keratomileusis, Laser In Situ
/
Keratoconus
Type of study:
Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Humans
Language:
De
/
En
Journal:
Klin Monbl Augenheilkd
Year:
2023
Type:
Article