Laser de argônio no tratamento da triquíase e da distiquíase

Argon laser in the treatment of trichiasis and distichiasis

RESUMO

Objetivo:

Avaliar a eficácia da fotocoagulação com laser de argônio no tratamento da triquíase e distiquíase.

Métodos:

Estudo prospectivo de 77 pálpebras de portadores de triquíase e/ou distiquíase, tratados com fotocoagulação dos folículos pilosos com "Argon green laser" (Nidek). Avaliou-se a idade, sexo, queixa apresentada, causa do mau posicionamento dos cílios, pálpebra acometida, tratamento efetuado (número de disparos efetuados em cada sessão) e a evolução após a aplicação (cura ou reaplicação). Os parâmetros utilizados foram: mira de 50 µm, 0,2 segundos de exposição, potência inicial de 600mw e final de 1000 mw. Os dados foram submetidos à análise estatística descritiva.

Resultados:

A pálpebra inferior (PI) foi mais acometida que a superior (PS) (89PI x 40PS) e a triquíase, mais comum que a distiquíase (89T x 440). Apesar dos cílios distiquiáticos serem destruídos com menor número de aplicações, a efetividade de destruição de folículos pilosos foi maior na triquíase do que na distiquíase. A média dos disparos de laser na primeira aplicação foi de 31 disparos, sendo que 75 % dos pacientes tiveram os cílios mal posicionados destruídos com 39 disparos. Com uma única sessão de tratamento 37, 7 % dos pacientes se curaram e a porcentagem de cura com até cinco aplicações foi de 98,7%.

Conclusão:

O laser de argônio é efetivo no tratamento da triquíase e da distiquíase.

Palavras-chave:
Laser; Triquíase; Distiquíase; Tratamento; Laser de argônio

SUMMARY

Purpose:

To evaluate the effectiveness of Argon laser photocoagulation in the treatment of trichiasis and distichiasis.

Methods:

77 eyelids of patients with trichiasis and/or distichiasis treated with photocoagulation of the eyelashes with Argon green laser (Nidek) were studied prospectively. Age, sex, complaints, causes of eyelash misdi-rection, eyelid affection treatment applied (number of appli-cations made in each session) and the evolution after the application (cure or reaplication) were evaluated. The laser settings were: it aims of 50 jm, 0.2 seconds of exhibition, initial potency of 600mw andfinal of lOOOmw. The data were submitted to the descriptive statistical analysis.

Results:

The inferior eyelid (PI) was more affected than the superior (PS) (89PI x 40PS) and trichiasis, more common than distichiasis (89T x 44D). Inspite of the fact that distichiasis eyelashes were destroyed with a lower number of applications, the effectiveness of destruction of the follicles was greater in trichiasis than in distichiasis. The average of laser shots in the first session of application was 3J shots, and 75% of the patients had the misdirectied eyelashes destroyed with 39 shots. With a single session of laser treatment, 37. 7% of the patients were cured and with five applications cure was obtained in 98. 7% of our patients.

Conclusion:

Argon laser photocoagulation is effective in the treatment of trichiasis and distichiasis treatment.

Keywords:
Laser; Trichiasis; Distichiasis; Argon laser

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• 1
  Trabalho realizado na Faculdade de Medicina de Botucatu.

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Datas de Publicação

• Publicação nesta coleção
  Jun 1999