Resumo

FERNANDEZ ARGONES, Liamet et al. Study of the effectiveness of double-frequency Nd YAG laser peripheral iridoplasty using Scheimpflug images and gonioscopy. Rev Cubana Oftalmol [online]. 2012, vol.25, suppl.1, pp. 352-362. ISSN 0864-2176.

Objective: to assess the effectiveness of double-frequency Nd YAG laser peripheral iridoplasty using Scheimpflug images and gonioscopy. Methods: longitudinal prospective and descriptive study of 40 eyes (23 patients) with residual angle-closure (Shaffer´s grade 0-2) due to pupillary block (n=30) or plateau iris syndrome (n=10). The gonioscopy, Scheimpflug images (Oculus Pentacam) and intraocular pressure were obtained preoperatively and one week postoperatively and then compared. Results: of the surgical eyes, 70 % with pupillary block (p=0,000) and the 100 % with plateau iris were Shaffer´s grade 2-3 postoperatively. The Scheimpflug images did not show changes on angle openness after surgery (p=0,696, p=0,572, pupillary block; p=0,053, p=0,113, plateau iris). The mean volume of anterior chamber (p=0,001 and p=0,008) and the pupil diameter (p=0,002 in pupillary block) significantly increased The intraocular pressure reduction of 2,4 mmHg (p=0,004, pupillary block) and 3,6 mmHg (p=0,011, plateau iris) was obtained. Complications were minimal and responded well to topical treatment. Conclusion: the Nd YAG laser peripheral iridoplasty is effective and safe. Scheimpflug images are not useful for precise measurements of angle openness.

Palavras-chave : peripheral iridoplasty; Scheimpflug image; gonioscopy; angle openness.