Date post: | 15-Jul-2015 |
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OPHTHALMIC SURGERY INSTRUMENTS – APPLICATIONS AND MECHANICS
Dr Sanjoy SanyalProfessor and Surgeon
Who Will Need This? Ophthalmic Residents in Training
Ophthalmic Surgery Technicians
Ophthalmic Operating Theater 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
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(after William Stewart Halsted)
Straight is for holding Stay-sutures or Tissues
Curved is for catching / crushing small bleeders; a.k.a. 'Hemostat Forceps'
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
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 on Temporal Side of Orbit
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 InstrumentAdult-size is 14 mm (length of Eyelids)
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
Superior Rectus-Holding Forceps
Special double-curve to go inside Orbit and over Eyeball
Toothed tips for firmly grasping Superior Rectus Muscle
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
Suture-Tying Forceps (Curved)
Curved Suture-Tying Forceps are held in Right Hand, for holding other end of the Suture and tying the knot
de' Wecker's Iris Scissors Small,
Slender spring-open Scissors
Slightly larger than Vanna‘sScissors
For Iridectomy and other delicate Intraocular Procedures
Dastoor Pupil and Iris Repositor Two-
limbed instrument
Pupil Repositor: Forked at the tip; To reposition PupillaryMargin
Iris Repositor: Flattened and rounded at the tip; To move or reposition the Iris during Intraocular Maneuvers
Utrata Capsulorhexis Forceps Removes
central portion of Anterior Capsule of Lens in continuous curvilinearfashion ( Continuous Curvilinear Capsulo-rhexis(CCC))
Fine, Non-toothed, Sharp-tipped, slightly forward-hooked Forceps Forward hook mimics a Cystitome
Kelman-McPherson IOL Forceps Fine sharp-
tipped non-toothed forceps
Angulated Tip
For holding and inserting Intraocular Lens (IOL) in Capsular bag
Phaco Chopper / Sinskey Hook IOL Dialer Chopper
Tip: Very sharp curve, used along with PhacoProbe for cutting Cataract Lens
Sinskey Hook Dialer Tip: Curved round hook; Fits in IOL Dialer Holes or at IOL Haptic-Optic Junction, for Positioning the IOL in Capsular bag
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