Corneal suture for the correction of hyperopia following radial keratotomy.
OBJECTIVE
To report the visual and refractive changes observed after double concentric corneal suture to correct hyperopic shift after radial keratotomy (RK).


METHODS
This retrospective consecutive case series comprised 17 eyes (15 patients) that underwent two concentric corneal sutures (modified Grene Lasso suture) to correct hyperopic shift after RK. All surgeries were performed by the same surgeon between 2000 and 2003.


RESULTS
The mean time after RK was 11.6 +/- 3.2 years. The mean follow-up was 20.3 +/- 11.3 months. The spherical equivalent refraction was reduced from a preoperative mean of +4.38 +/- 2.87 diopters (D) to -0.54 +/- 2.59 D at last postoperative follow-up (P < .001). No statistically significant difference was observed in mean refractive astigmatism before and after the corneal suture (P = .15). Before surgery, no eye presented with best spectacle-corrected visual acuity (BSCVA) > or = 20/20. At final follow-up, 3 (17.6%) eyes attained this level. Seven (41.2%) eyes improved their BSCVA by > or = 2 Snellen lines. One (5.9%) eye lost 2 Snellen lines of BSCVA.


CONCLUSIONS
Corneal suture can be used to correct RK-induced hyperopia, improving the corneal asphericity in an attempt to stabilize these corneas. It appeared to be effective even for high degrees of hyperopia and in cases with associated irregular astigmatism or open incisions.
Nosé
Walton
W
Eye Clinic Day Hospital, São Paulo, Brazil. wnose@eyeclinic.com.br
Endriss
Daniela
D
Forseto
Adriana S
AS
D000328:Adult; D001251:Astigmatism / Q000503:physiopathology; D003315:Cornea / Q000473:pathology / Q000601:surgery*; D005139:Eyeglasses; D006801:Humans; D006956:Hyperopia / Q000209:etiology* / Q000601:surgery*; D007646:Keratotomy, Radial / Q000009:adverse effects*; D008875:Middle Aged; D011184:Postoperative Period; D012029:Refraction, Ocular; D012086:Reoperation; D012189:Retrospective Studies; D013536:Suture Techniques; D014792:Visual Acuity