In the sentence extracted from biomedical literature, identify all the chemical entities. The required answer format is the same sentence with HTML <span> tags to mark up specific entities. 
### Entity Markup Guides:
Use <span class="chemical"> to denote a chemical.

### Input Text: OBJECTIVE : To report the incidence and management of elevated intraocular pressure ( IOP ) in patients with uveitis treated with the fluocinolone acetonide ( FA ) intravitreal implant .
### Output Text:
OBJECTIVE : To report the incidence and management of elevated intraocular pressure ( IOP ) in patients with uveitis treated with the <span class="chemical">fluocinolone acetonide</span> ( <span class="chemical">FA</span> ) intravitreal implant . 