Instruments

This is Created by Dr. Rajat-Department of Ophthmology, ELMC&H

1. 1) Barraquer wire speculum –
Characteristics-
It is universal speculum as can be used for both eyes.
It is used to separate eye lids for intraocular surgery.
Self retaining.
Light weight
USES-
Intraocular surgery-cataract & glaucoma surgery.
Extraocular surgery-squint & pterygium surgery.

2. Enucleation & evisceration surgery
Removal of conjunctival and corneal foreign body.
Cauterisation of corneal ulcer.

3. 2)Superior rectus holding forceps
Characteristics-
It is a forcep with a double curve at the end(S shaped)
It has a single big tooth to hold the superior rectus muscle
It has it first angle at a distance of 7.7 mm
Uses-
Used to hold the superior rectus muscle for passing bridle
suture to rotate the eyeball downward in cataract and
glaucoma surgery.
To fix the eyeball during surgery.

5. Conjunctival spring scissor
Characteristics-
It may be straight or curved with sharp or blunt tip.
It is a sleek longer scissor.
The blade is kept apart by spring action.
USES-
Used to cut conjunctiva to make conjunctival flap.

7. Globe Fixation Forcep
Characteristics-
It has 2-3 or 3-4 teeth at its tip.
It is used to hold the conjunctival tissue and
episcleral tissue together.
USES-
To hold the conjunctiva for making conjunctival flap
with use of conjunctival scissor.
To fix the globe while making tunnel with crescent.

9. Electrocauteryalong with connection wire
Characteristics-
It is also called wet field cautery as it is used in moist field.
It is also called as bipolar dithermy as it has two poles and
to the other side wire is attached.
USES-
It is used to cautery the bleeding episcleral vessels &
conjunctival vessels after the conjunctival flap is made.

11. Bard parker knife handle with blade
Characteristics-
It is a handle in which 15 number disposable blade is loaded
if cataract surgery is done.
It has a long handle with groove at its extreme end in which
blade is loaded.
USES-
To make corneo-scleral gutter in cataract surgery.
Used in DCR , ptosis , entropion , ectropion surgeries for
incision of skin.

13. Crescent Knife
Characteristics-
It is blunt tipped which has a cut splittinf action at the
tip and both the sides.
The blade is curved and is mounted on plastic handle.
USES-
It is used to make self sealing sclero corneal tunnel
after making the scleral gutter in cataract surgery.

15. Keratome
Characteristics-
It has a thin diamond shape blade with a sharp apex
and two cutting edge.
This is a curved disposable keratome .
Straight disposable keratome are also available.
USES-
It is used for making entry in anterior chamber after
the tunnel is formed.

17. Cystitome
Characteristics-
It has a tiny , sharp and triangular flag shaped tip .
It can be made by bending the tip of 26 gauge needle.
USES-
For incising the anterior capsule of the lens by using
envelope method ,ccc method, can opner method.

19. Kelman-McPherson forceps
Characteristics-
These are fine forceps with bent blade.
USES-
Used to tear off the anterior capsule of lens in cataract
surgery.
Used to hold the IOL .
Used to hold the sutures.

21. Lens expressor
Characteristics-
It has a flat corrugated metal handle with curved limb
ending in a knob which is at 90 degree
USES-
It is applied at 6 o clock position to deliver the nucleus
out.

22. Irrigation wire vectis
Characteristics-
It is a modified vectisin whickloop is made of
hollow wire .
It has three 0.3 mm opening .
Posterior end of loop is continuous with hollow
handle to which infusion set is attached.
USES-
It is used to deliver nucleus by introducing this vectis
from tunnel and applying counter pressure at 12 o
clock position.

24. Simcoe’s two way irrigation and aspiration canulla
Characteristics-
It has at one end straight or angular blunt canulla .
The other end has canull which is fixed with the syringe.
Uses-
For irrigation and suction of lens particles or cortical matter
from anterior chamber after nuclear delivery.
Can also be used for aspiration of hyphaema.

26. Lens holding forcep
Characteristics-
It is a spring action forcep.
It have has blunt curved blades.
They dont have tooth.
USES-
It is used to hold the non foldable PMMA IOL during
implantation .

28. Sinskeyhook or IOL dialer
Characteristics-
It is a pencil like handle with thin neck .
The neck is bent in between at 45 degree .
The tip is bent at 90 degree.
USES-
The tip is engaged in the hole present in optics of PC-
IOL and is used to rotate it .

30. Ring capsule polisher
Characteristics-
It has a long handle with bent neck at the tip there is a
ring.
USES-
It is used to polish or seperate the adherent cortical
matter with the posterior capsule of lens before IOL
implantation.

32. Instruments used in DCR surgery
Primary and secondary trephine-
Primary trephine has a pointed tip in the middle and it
is used to mark the frontal process of maxilla and
lacrimal bone .
Secondary treplhine is used to make the opening in
DCR surgery.

34. Citelli’sbone punch
It is used in DCR surgery during osteotomy in
increasing the opening.
Disadvantage-
Accidental damage to mucous membrane of nose and
nasal septum can occur.

36. Chisel
Characteristics-
It is a thick stout flat spoon like chisel with sharp end .
USE-
It is used to break small bones in DCR surgery during
osteotomy.

37. Punctumdilator
Characteristics-
It has a corrugated metal handle with a conical point.
USES-
It is used to dilate the punctum before probe is
introduced in lacrimal sac.

38. Lacrimalprobe
Characteristics-
These are set of straight metal wires with blunt end
and flat platform at the centre.
It is of varying thickness from 0-8
USE-
It is introduced from the puncta and guides in making
h shaped incision of lacrimal sac.

39. I copied from Dr.rajatsaxena’s(JR2) pendrive….
Njy… all d best 4 xams
Abhinavkumar07-08 elmch