The document outlines various ophthalmic surgery instruments, their applications, and mechanical functions. It is primarily aimed at individuals involved in ophthalmic surgery, such as residents, technicians, and nurses, detailing instruments commonly used in cataract surgery. The presentation includes descriptions and images of tools like forceps, cannulae, and specula without following a specific order.

1. OPHTHALMIC SURGERY INSTRUMENTS
– APPLICATIONS AND MECHANICS
Dr Sanjoy Sanyal
Professor and Surgeon

2. Who Will Need This?
 Ophthalmic Residents inTraining
 Ophthalmic SurgeryTechnicians
 Ophthalmic OperatingTheater Assistants
 Ophthalmic Surgery Nurses
 Medical Students with interest in Ophthalmology
Foreword
 No specific order has been followed while describing the
instruments
 Cataract being very common, most instruments are related to
Cataract surgery
 Instruments were obtained from an Ophthalmologist’s clinic
and pictures were taken with the author’s Low-Res camera
 This is not a comprehensive list, not by a long shot! More such
presentations will follow in due course

3. Artery (Mosquito/Halsted) Forceps
 Basic instrument
for any surgery
 Numerous sizes
exist
 Straight / Curved
Jaws
 Small (4") Straight /
Curved are a.k.a.
Mosquito /
Halsted's Forceps
(afterWilliam
Stewart Halsted)
 Straight is for
holding Stay-
sutures orTissues
 Curved is for catching / crushing small
bleeders; a.k.a. 'Hemostat Forceps'

4. Simcoe Irrigation-Aspiration Cannula
 Two Cannulae merged together, in Ophthalmic Surgery
 One Hub is to introduce fluid in Anterior Chamber (AC)
 Other Hub is to extract Lens matter, Blood etc from AC

5. Universal Eye Speculum
 Separates Eyelids during Ophthalmic Procedures
 Universal: Can be used on either Eye
 Unguarded: Eyelashes can project into operating field
 Adjustable: Screw-Handle controls separation of Eyelids
 Screw-Handle is always onTemporal Side of Orbit

6. Barraquer Wire Speculum – Adult
 Separates
Eyelids
 Used on either
eye
 Unguarded:
Eyelashes can
project into
operating field
 Non-
Adjustable:
Fixed 22-25
mm
separation of
Eyelids
 Springy light-wire Instrument
Adult-size is 14 mm (length of Eyelids)

7. Strabismus / Squint / Muscle Hook
 To lift up
muscle during
Strabismus
(Squint) surgery
 Double-curved
end for hooking
up Muscle
 Sideways
flattened tip for
ease of
insertion under
Muscle near its
insertion
 Distinguish from Lens Expressor
(blue inset picture), used to force out
Lens in Cataract Extraction

8. Superior Rectus-Holding Forceps
 Special double-curve to go inside Orbit and over Eyeball
 Toothed tips for firmly grasping Superior Rectus Muscle

9. Suture-Tying Forceps (Straight)
 Fine-limbed
Non-
toothed
forceps to
hold fine
sutures (8-0)
 Inner surface
of Tip is
faintly
ridged, flat
and slightly
roughened
to hold the
fine suture
 Straight Suture-Tying Forceps are held in
Left Hand, for holding one end of the Suture

10. Suture-Tying Forceps (Curved)
 Curved Suture-Tying Forceps are held in Right Hand, for
holding other end of the Suture and tying the knot

11. de' Wecker's Iris Scissors
 Small,
Slender
spring-
open
Scissors
 Slightly
larger
than
Vanna‘s
Scissors
 For Iridectomy and other delicate Intraocular
Procedures

12. Dastoor Pupil and Iris Repositor
 Two-
limbed
instrument
 Pupil
Repositor:
Forked at
the tip;To
reposition
Pupillary
Margin
 Iris Repositor: Flattened and rounded at the tip;To move or
reposition the Iris during Intraocular Maneuvers

13. Utrata Capsulorhexis Forceps
 Removes
central
portion of
Anterior
Capsule of
Lens in
continuous
curvilinear
fashion (
Continuous
Curvilinear
Capsulo-
rhexis
(CCC))
 Fine, Non-toothed, Sharp-tipped, slightly
forward-hooked Forceps
 Forward hook mimics a Cystitome

14. Kelman-McPherson IOL Forceps
 Fine sharp-
tipped non-
toothed
forceps
 AngulatedTip
 For holding
and inserting
Intraocular
Lens (IOL) in
Capsular bag

15. Phaco Chopper / Sinskey Hook IOL
Dialer
 Chopper
Tip:Very
sharp
curve,
used
along
with
Phaco
Probe for
cutting
Cataract
Lens
 Sinskey Hook DialerTip: Curved round hook;
Fits in IOL Dialer Holes or at IOL Haptic-Optic
Junction, for Positioning the IOL in Capsular bag

16. Thank you for
watching