Corneal collagen cross-linking with riboflavin and ultraviolet - a light for keratoconus: results in Indian eyes.
Indian J Ophthalmol
;
2009 Mar-Apr; 57(2): 111-4
Artigo
em Inglês
| IMSEAR
| ID: sea-72310
ABSTRACT
AIM:
To assess the results of corneal collagen cross-linking with riboflavin using ultraviolet - A light for keratoconus at one year in Indian eyes. MATERIALS ANDMETHODS:
Sixty-eight eyes of 41 patients with progressive keratoconus were included in this retrospective study. All eyes completed was 12 months of follow-up and 37 eyes had a one-year follow-up. The maximum follow-up was 16 months. Ocular examinations including refraction, best corrected visual acuity (BCVA), corneal topography, were recorded at each visit.RESULTS:
The mean age was 16.9 +/- 3.5 years (range 12-39 years) and the mean follow-up was 10.05 +/- 3.55 months (range six to 16 months). Thirty seven eyes with a follow-up of at least 12 months were analyzed. The preoperative values on the day of treatment were compared with postoperative values of the 12-month examination. This showed that BCVA improved at least one line in 54% (20/37) of eyes and remained stable in 28% (10/37) of eyes ( P =0.006). Astigmatism decreased by a mean of 1.20 diopter (D) in 47% (17/37) of eyes ( P =0.005) and remained stable (within +/- 0.50 D) in 42% (15/37) of eyes. The K value of the apex decreased by a mean of 2.73 D in 66% (24/37) of eyes ( P =0.004) and remained stable (within +/- 0.50 D) in 22% (8/37) of eyes. The maximum K value decreased by a mean of 2.47 D in 54% (20/37) of eyes ( P =0.004) and remained stable (within +/- 0.50 D) in 38% (14/37) of eyes. Corneal Wavefront analysis revealed that spherical and higher-order aberrations did not show significant variations in the follow-up period. The coma component showed a very significant reduction at six months after treatment and persisted throughout the follow-up period ( P =0.003)CONCLUSION:
The results show a stabilization and improvement in keratoconus after collagen cross-linking in Indian eyes. This suggests that it is an effective treatment for progressive keratoconus.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Fotoquimioterapia
/
Riboflavina
/
Raios Ultravioleta
/
Humanos
/
Acuidade Visual
/
Criança
/
Estudos Retrospectivos
/
Seguimentos
/
Adolescente
/
Colágeno
Tipo de estudo:
Estudo observacional
/
Estudo prognóstico
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Indian J Ophthalmol
Ano de publicação:
2009
Tipo de documento:
Artigo
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