Vanna's scissors

Identification - These are very fine, delicate scissors with small cutting blades kept apart by spring action.

Types- 1) Straight 2) Curved


De Weeker’s scissors

Identification- They are fine scissors with small blades directed at right angles to the arms. The blades are kept apart giving it a v- shape, by its spring action.


Corneal scissors ( Castravejo scissors )

Identification -They are fine curved scissors. Their cutting blades are kept apart by spring action. They are available in various shapes and sizes. Blades are angulated to facilitate manipulation and are curved to conform to the curve of limbus.

The blade which is introduced into anterior chamber is 1mm long than the outer blade. The longer blade is rounded in fashion of a spatula to minimize the trauma to corneal endothelium and iris.
Second advantage of longer inner blade is that it does not remove itself from the eye upon each time thereby eliminating the possibility of reintroducing the blade.


1.To enlarge corneal or corneoscleral incision for cataract and keratoplasty operation
2. To cut the scleral or trabecular tissue in trabeculectomy

Westcott’s scissors

Identification They are stout scissors available with straight or curved blades with sharp or blunt tips.
Blades are kept apart by spring action.

Uses - 1) For cutting and undermining conjunctiva in various ophthalmic surgeries.
           2) Can also be used instead of corneal scissors for creating limbal sections.

Stevens tenotomy scirrors
Used as alternative to Westcott scissors