fornix
Pronunciation: FOR-niks
The deep recess between the eyelid and eyeball where the conjunctiva reflects from the lid to the globe.
Full Definition
The fornix represents the transitional zone where the palpebral conjunctiva of the eyelid reflects onto the bulbar conjunctiva of the eyeball, creating deep recesses both superiorly and inferiorly. These anatomical spaces are clinically significant in ocular surgery as they provide access for subconjunctival injections, surgical approaches, and are common sites for foreign body retention. The superior and inferior fornices must be carefully examined during preoperative assessments and protected during surgical procedures to maintain normal eyelid function and tear film distribution.
Usage
Usage note: Plural form is 'fornices'; specify superior or inferior fornix when location is relevant.
In Context
- "The surgeon carefully inspected the superior fornix for any retained foreign material before closure." — Operative report
- "Subconjunctival injection was administered into the inferior fornix to provide local anesthesia." — Procedure note