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2012, Number s1

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Rev Cub Oftal 2012; 25 (s1)

Study of the effectiveness of double-frequency Nd YAG laser peripheral iridoplasty using Scheimpflug images and gonioscopy

Fernández AL, Cárdenas PYF, Piloto DI, Fernández HJ, Padilla GCM, Obret MI

Language: Spanish
References: 35
Page:
PDF size: 195.43 Kb.


ABSTRACT

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.


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