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Buraco macular - Diagnóstico diferencial: teste de Watzke-Allen e teste da mira do laser

Buraco macular - Diagnóstico diferencial: teste de Watzke-Allen e teste da mira do laser

Autores:

Francyne Veiga-Reis,
Renato Braz Dias,
Márcio B. Nehemy

ARTIGO ORIGINAL

Arquivos Brasileiros de Oftalmologia

versão impressa ISSN 0004-2749versão On-line ISSN 1678-2925

Arq. Bras. Oftalmol. vol.60 no.6 São Paulo dez. 1997

http://dx.doi.org/10.5935/0004-2749.19970012

SUMMARY

Purpose:

To evaluate the importance of Watzke-Allen Test and Laser Aiming Beam Test in diferential diagnosis of macular holes.

Methods:

The authors studied prospectively 34 patients (47 eyes) divided in two groups: Group 1, 24 patients (31 eyes) with full thickness macular holes and, Group 2, 16 patients (16 eyes) with pseudomacular holes. Watzke-Allen Test and Laser Aiming Beam Test with 50μ, 100μ e 200μ were performed on all patients. The results of both groups were compared. Bilaterality was present in 6 cases.

Results:

The sensitivity and specificity of Watzke-Allen Test were 71,0% and 68,7% respectively since 22 patients in Group 1 and five patients in Group 2 informed an interruption of the slit beam. In the Laser Aiming Beam Test, 28 cases in Group 1 and four cases in Group 2 could not see the 50μ spot, resulting in a sensitivity and specificity of 90.3% and 75.0% respectively.

Conclusion:

Both Watzke-Allen Test and Laser Aiming Beam Test performed with a 50μ, have a good sensitivity and specificity in the diferential diagnosis of macular holes. These tests are noninvasive, easy to perform and have a low cost. Therefore, they could be incorporated in ophthalmology routine.

Key Words: Macular Hole; Watzke-Allen Test; Laser Aiming Beam Test

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