Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Cross-linking for Corneal Ulcers Treatment Trial
Brief Summary: The primary purpose of this study is to determine if patients randomized to corneal collagen cross-linking plus medical therapy will have a lower prevalence of positive bacterial or fungal cultures immediately after the procedure than patients who received medical therapy alone.

The secondary purpose of this study is to determine if patients randomized to corneal collagen cross-linking will have a better visual acuity at 3 and 12 months than patients who receive medical therapy alone.


Options:
A: Arm Label: 30 minute light duration; Type: ACTIVE_COMPARATOR; Interventions: Drug: riboflavin, Device: UVX Light | Arm Label: 45 minute light duration; Type: ACTIVE_COMPARATOR; Interventions: Device: UVX Light | Intervention Type: DRUG; Name: riboflavin; Assigned to Arm(s): 30 minute light duration | Intervention Type: DEVICE; Name: UVX Light; Assigned to Arm(s): 30 minute light duration, 45 minute light duration
B: Arm Label: Bacterial ulcer cross-linking; Type: EXPERIMENTAL; Interventions: Procedure: Corneal Cross-linking | Arm Label: Bacterial ulcer control; Type: ACTIVE_COMPARATOR; Interventions: Procedure: Corneal Cross-linking | Arm Label: Fungal ulcer cross-linking plus natamycin; Type: EXPERIMENTAL; Interventions: Procedure: Corneal Cross-linking, Drug: Anti Fungal Drug | Arm Label: Fungal ulcer control with natamycin; Type: ACTIVE_COMPARATOR; Interventions: Procedure: Corneal Cross-linking, Drug: Anti Fungal Drug | Arm Label: Fungal ulcer cross-linking plus amphotericin; Type: EXPERIMENTAL; Interventions: Procedure: Corneal Cross-linking, Drug: Anti Fungal Drug | Arm Label: Fungal ulcer control with amphotericin; Type: ACTIVE_COMPARATOR; Interventions: Procedure: Corneal Cross-linking, Drug: Anti Fungal Drug | Intervention Type: PROCEDURE; Name: Corneal Cross-linking; Assigned to Arm(s): Bacterial ulcer control, Bacterial ulcer cross-linking, Fungal ulcer control with amphotericin, Fungal ulcer control with natamycin, Fungal ulcer cross-linking plus amphotericin, Fungal ulcer cross-linking plus natamycin | Intervention Type: DRUG; Name: Anti Fungal Drug; Assigned to Arm(s): Fungal ulcer control with amphotericin, Fungal ulcer control with natamycin, Fungal ulcer cross-linking plus amphotericin, Fungal ulcer cross-linking plus natamycin
C: Arm Label: Treatment (PACK-CXL); Type: EXPERIMENTAL; Interventions: Device: PACK-CXL | Arm Label: Antimicrobial therapy; Type: ACTIVE_COMPARATOR; Interventions: Drug: Cefazolin in combination with either tobramycin or gentamicin, Drug: Cycloplegic agents (cyclopentolate 1% eye drops), Drug: Fluoroquinolones (Besifloxacin ; ciprofloxacin ; gatifloxacin ; levofloxacin ; moxifloxacin ; ofloxacin ), Drug: Corticosteroids (prednisolone acetate 0.5% or 1% eye drops) | Intervention Type: DEVICE; Name: PACK-CXL; Assigned to Arm(s): Treatment (PACK-CXL) | Intervention Type: DRUG; Name: Cefazolin in combination with either tobramycin or gentamicin; Assigned to Arm(s): Antimicrobial therapy | Intervention Type: DRUG; Name: Cycloplegic agents (cyclopentolate 1% eye drops); Assigned to Arm(s): Antimicrobial therapy | Intervention Type: DRUG; Name: Fluoroquinolones (Besifloxacin ; ciprofloxacin ; gatifloxacin ; levofloxacin ; moxifloxacin ; ofloxacin ); Assigned to Arm(s): Antimicrobial therapy | Intervention Type: DRUG; Name: Corticosteroids (prednisolone acetate 0.5% or 1% eye drops); Assigned to Arm(s): Antimicrobial therapy
D: Arm Label: Accelerated Corneal Cross-linking; Type: EXPERIMENTAL; Interventions: Procedure: Accelerated Corneal Cross-linking | Arm Label: Sham Accelerated Corneal Cross-linking; Type: SHAM_COMPARATOR; Interventions: Procedure: Accelerated Corneal Cross-linking | Intervention Type: PROCEDURE; Name: Accelerated Corneal Cross-linking; Assigned to Arm(s): Accelerated Corneal Cross-linking, Sham Accelerated Corneal Cross-linking

Answer: B