Effectiveness of Oral Acetazolamide, Brimonidine Tartarate, and Anterior Chamber Paracentesis in Intraocular Pressure (IOP) After Bevacizumab

Effectiveness of Oral Acetazolamide, Brimonidine Tartarate, and Anterior Chamber Paracentesis for Ocular Hypertension Control After Intravitreal Bevacizumab Injection: Preliminary Results

Purpose: To evaluate the effects of anterior chamber paracentesis, brimonidine and oral acetazolamide to reduce intra-ocular pressure (IOP) variations after intravitreal bevacizumab injection (IVBV).

Methods: 47 patients scheduled for IVBV (1.5 mg / 0.06 ml) will be randomly assigned to a pre-treatment 1 hour before IVBV with either 250 mg oral acetazolamide (DIA, 9 eyes), anterior chamber paracentesis immediate after IVBV (PAR, 15 eyes), topic brimonidine tartarate 1 hour before IVBV (BRI, 14 eyes), or no pre-treatment IBVB (CTR, 9 eyes). IOP will be measured 90 minutes before injection (baseline), just before injection, and at 3, 10, 20 and 30 minutes after the procedure.

Inclusion Criteria:

• macular edema

Exclusion Criteria:

• pulmonary chronic problems
• chronic renal failure
• intraocular inflammation
• drug or alcohol addiction