1.
Initial Experience With the New Ahmed Glaucoma Valve Model M4: Short-term Results.
Cvintal Victor, Moster Marlene R, Shyu Andrew P, McDermott Katie, Ekici Feyzahan, Pro Michael J et al.
J GlaucomaMay 20163 citationsCase Series
The AGV M4 initially lowered IOP, but pressure significantly increased after one month, leading to high failure rates by one year, suggesting limited long-term efficacy.