Which is the best eye speculum? It is the one which gives the surgeon best access to the eyes with minimal pressure on the globe. The various types of speculum are eyelid speculum, Frankel and Sauer pediatric speculum, barraquer wire speculum, pierce speculum, Williams eye speculum, lang speculum, etc.
An eye speculum helps to enter the fissure of the eye and get a direct vision of the eye crater. Let’s see the uses of the types of eye speculum:
Frankel and Sauer Pediatric Speculum
These tools are designed to provide support during indirect cataract extraction or ophthalmoscopy for opening an infant's eye ophthalmoscopy and cataract extraction. Frankel speculum lets you adjust the palpebral fissure’s width.
Barraquer Wire Speculum
Speculum can be fixed or flexible and is divided into wire or rigid speculum. Barraquer is extensively used for cataract extraction particularly for phacoemulsification. The palpebral fissure’s width cannot be adjusted by the wire speculum which is its biggest disadvantage when compared to the rigid one.
Pierce Speculum is a combination of rigid as well as wire speculum’s features. You may adjust the interpalpebral distance with the Pierce Speculum.
Williams Eye Speculum
Williams Eye Speculum allows the width adjustment of the palpebral fissure. Surgeries like enucleation or strabismus need a wide palpebral fissure and this is where the Williams Eye Speculum is mostly used. When the eyes are wide opened with such speculum, the lateral canthus may push on the eye leading to rising in the intraocular pressure. Thus, it is recommended to avoid the extra widening of the palpebral fissure in patients with piercing injury.
Lang speculum keeps the eyelashes out while operations and it is a rigid speculum. However, the plastic drape is mostly used in the recent times to keep the lashes out of the way.
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