lid eversion

eversion, lid

Turning of the eyelid inside out so as to expose the palpebral conjunctiva. For the upper lid this is accomplished by grasping the lid by the central eyelashes, pulling it downward and forward and then folding it back over a cotton applicator (or thin plastic rod) placed at the upper margin of the tarsus, while the patient continually maintains downward fixation. Return to the normal lid position is obtained by asking the patient to look up and gently pushing the eyelashes in an outward and downward direction. Foreign bodies and even contact lenses are often lodged under the upper eyelid or in the conjunctival fornix of the upper eyelid. To inspect the superior conjunctival fornix double lid eversion is necessary. Following lid eversion (and usually with local anaesthesia of the conjunctiva), a retractor is placed between the two skin surfaces of the lid with the retractor engaging the tarsus and, after gently pulling outward and upward, the fornix will become visible. Eversion of the lower lid is performed easily by drawing the margin downward while the patient looks upward. See .
References in periodicals archive ?
The large cobblestones of the upper tarsal plate are pathognomonic for this disease, but they do require lid eversion to be identified.
Checking the health of the eye is important and this should always include lid eversion and white light and fluorescein check.
d) Lid eversion to check for sub-tarsal foreign bodies
Prior to starting the clinical placement, students are required to demonstrate clinical competence in slit lamp assessment of the anterior eye, including staining and lid eversion, slit lamp binocular indirect ophthalmoscopy and contact tonometry