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OBJECTIVE To study the need, the safety and the success rate of Nd:Yag goniopuncture in eyes that underwent deep sclerectomy with collagen implant. METHODS The first 100 patients that underwent deep sclerectomy with collagen implant were prospectively followed. Deep sclerectomy with collagen implant is a non-penetrating filtering surgery which allows filtration of aqueous from the anterior chamber to the subconjunctival space through a remaining trabeculo-Descemet's membrane without opening the anterior chamber. Goniopunctures with Nd:Yag laser were performed at the site of surgery when the filtration through the trabeculo-Descemet's membrane was considered to be insufficient with elevated intraocular pressure. The laser treatment was performed using a Lasag 15 gonioscopy contact lens (CGA1). Goniopunctures were performed using the free-running Q-switched mode with an energy ranging from 2 to 4 mJ. RESULTS Of 100 patients who underwent deep sclerectomy with collagen implant, goniopunctures with Nd:Yag laser were performed in 41 patients (41%). The mean time between deep sclerectomy with collagen implant and goniopuncture was 9.9 months +/-1.2 months (+/-SE). The mean IOP before laser treatment was 22.2 mm +/-7.0 mm Hg and decreased to 12.5 mm +/-5.8 mm Hg immediately after laser treatment and remained stable for the next 2 years of follow-up. The immediate success rate of goniopuncture was 83%. Choroidal detachment occurred in two patients (5%). CONCLUSIONS Nd:Yag goniopuncture is an efficient and safe treatment for low filtration through the trabeculo-Descemet's membrane after deep sclerectomy with collagen implant.
A Mermoud, and
M E Karlen, and
C C Schnyder, and
M Sickenberg, and
A G Chiou, and
S E Hédiguer, and
E Sanchez
February 2010,
Acta ophthalmologica,
A Mermoud, and
M E Karlen, and
C C Schnyder, and
M Sickenberg, and
A G Chiou, and
S E Hédiguer, and
E Sanchez
November 2022,
European journal of ophthalmology,
A Mermoud, and
M E Karlen, and
C C Schnyder, and
M Sickenberg, and
A G Chiou, and
S E Hédiguer, and
E Sanchez
May 2002,
Journal of cataract and refractive surgery,
A Mermoud, and
M E Karlen, and
C C Schnyder, and
M Sickenberg, and
A G Chiou, and
S E Hédiguer, and
E Sanchez
March 2016,
Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie,
A Mermoud, and
M E Karlen, and
C C Schnyder, and
M Sickenberg, and
A G Chiou, and
S E Hédiguer, and
E Sanchez
December 2003,
Acta ophthalmologica Scandinavica,
A Mermoud, and
M E Karlen, and
C C Schnyder, and
M Sickenberg, and
A G Chiou, and
S E Hédiguer, and
E Sanchez
January 2002,
Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde,
A Mermoud, and
M E Karlen, and
C C Schnyder, and
M Sickenberg, and
A G Chiou, and
S E Hédiguer, and
E Sanchez
December 2008,
Journal of glaucoma,
A Mermoud, and
M E Karlen, and
C C Schnyder, and
M Sickenberg, and
A G Chiou, and
S E Hédiguer, and
E Sanchez
January 2019,
Vestnik oftalmologii,
A Mermoud, and
M E Karlen, and
C C Schnyder, and
M Sickenberg, and
A G Chiou, and
S E Hédiguer, and
E Sanchez
January 1996,
International ophthalmology,
A Mermoud, and
M E Karlen, and
C C Schnyder, and
M Sickenberg, and
A G Chiou, and
S E Hédiguer, and
E Sanchez
December 2001,
Korean journal of ophthalmology : KJO,
