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Excimer laser phototherapeutic keratectomy in conjunction with mitomycin C in corneal macular and granular dystrophies / Ceratectomia fototerapêutica com excimer laser em conjunto com mitomicina C em distrofias granular e macular da córnea
Yuksel, Erdem; Cubuk, Mehmet Ozgur; Eroglu, Hulya Yazıcı; Bilgihan, Kamil.
  • Yuksel, Erdem; Gazi University. School of Medicine. Department of Ophthalmology. Besevler. TR
  • Cubuk, Mehmet Ozgur; Gazi University. School of Medicine. Department of Ophthalmology. Besevler. TR
  • Eroglu, Hulya Yazıcı; Gazi University. School of Medicine. Department of Ophthalmology. Besevler. TR
  • Bilgihan, Kamil; Gazi University. School of Medicine. Department of Ophthalmology. Besevler. TR
Arq. bras. oftalmol ; 79(2): 69-72, Mar.-Apr. 2016. tab, graf
Article in English | LILACS | ID: lil-782806
ABSTRACT
ABSTRACT

Purpose:

To evaluate the visual outcomes, recurrence patterns, safety, and efficacy of excimer laser phototherapeutic keratectomy (PTK) in conjunction with mitomycin C (MMC) for corneal macular and granular diystrophies.

Methods:

The patients were divided into two groups. Group 1 included patients with macular corneal dystrophy (MCD) that caused superficial corneal plaque opacities, and Group 2 included patients with granular corneal dystrophy (GCD). Patients in both groups were pre-, peri-, and postoperatively evaluated. The groups were compared in terms of uncorrected visual acuity (VA), best spectacle-corrected VA, presence of mild or significant recurrence, and time of recurrence.

Results:

Eighteen eyes (nine with MCD and nine with GCD) of 18 patients (10 men and eight women) were included. PTK was performed for each eye that was included in this study. The mean ablation amount was 117.8 ± 24.4 µm and 83.5 ± 45.7 µm in MCD and GCD, respectively, (p=0.18). The postoperative improvement of the mean VA was similar between the two groups before recurrences (p>0.43) and after recurrences (p>0.71). There were no statistically significant differences in the recurrence rate and the recurrence-free period for any recurrence type.

Conclusion:

PTK was an effective, safe, and minimally invasive procedure for patients with MCD and GCD. PTK in conjunction with MMC was similarly effective for both groups in terms of recurrence and visual outcomes.
RESUMO
RESUMO

Objetivo:

Avaliar os resultados visuais, padrões de recorrência, segurança e eficácia da ceratectomia fototerapêutica (PTK) por excimer laser em conjunto com mitomicina C (MMC) em distrofias macular e granular da córnea.

Métodos:

Os pacientes foram divididos em dois grupos. Grupo 1 incluiu pacientes com distrofia macular de córnea (MCD) que causaram opacidades superficiais corneanas em placa e o grupo 2 incluiu pacientes com distrofia corneana granular (GCD). Todos os pacientes em ambos os grupos foram avaliados no pré, per e pós-operatório. Os grupos foram comparados em termos de acuidade visual (VA) não corrigida, VA melhor corrigida por óculos, presença de recorrência leve ou significativa e o tempo de recorrência.

Resultados:

Dezoito olhos de 18 pacientes (10 homens e 8 mulheres) foram incluídos no estudo, 9 olhos com MCD e 9 olhos com GCD. Um procedimento de PTK foi realizado em cada olho incluídos neste estudo. A quantidade média de ablação foi 117,8 ± 24,4, 83,5 ± 45,7 µm de MCD e GCD, respectivamente, (p=0,18). A melhora pós-operatória da acuidade visual média foi semelhante entre os dois grupos antes de as recidivas (p>0,43) e após as recidivas (p>0,71). Não houve diferença estatisticamente significativa na taxa de recorrência ou do período livre de recorrência para qualquer tipo de recorrência.

Conclusão:

PTK foi um procedimento eficaz, seguro e minimamente invasivo para pacientes MCD e GCD. PTK em conjunto com MMC é igualmente eficaz para ambos os grupos em termos de recorrência e resultados visuais.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Corneal Dystrophies, Hereditary / Mitomycin / Photorefractive Keratectomy / Alkylating Agents / Lasers, Excimer Type of study: Observational study / Prognostic study Limits: Adult / Female / Humans / Male Language: English Journal: Arq. bras. oftalmol Journal subject: Ophthalmology Year: 2016 Type: Article Affiliation country: Turkey Institution/Affiliation country: Gazi University/TR

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Full text: Available Index: LILACS (Americas) Main subject: Corneal Dystrophies, Hereditary / Mitomycin / Photorefractive Keratectomy / Alkylating Agents / Lasers, Excimer Type of study: Observational study / Prognostic study Limits: Adult / Female / Humans / Male Language: English Journal: Arq. bras. oftalmol Journal subject: Ophthalmology Year: 2016 Type: Article Affiliation country: Turkey Institution/Affiliation country: Gazi University/TR