Lancaster Eye Speculum 3.25"
This is a rigid speculum which allows for adjusting of the width of the palpebral fissure. In addition, it has guards to keep the eyelashes away during surgery although this can also be accomplished with the use of surgical drapes. A possible disadvantage of this speculum is that it can create significant force on the eyelids which may increase the rate of post-operative ptosis or other eyelid malpositions.