Aravind Eye Care System 1, Anna Nagar, Madurai - 625 020, Tamilnadu, India Standardized Cataract Surgical Protocol SURGICAL PROTOCOL FOR ADMINISTERING ANAESTHESIA 1. Block Room
Block room doctor should wash their hands
Checking of emergency kit (adrenaline, atropine, Deriphylline, Dexamethasone,
hydrocortisone, phenergan, mephentin, diazepam, O2 cylinder with kit, I V Kit, syringes,
plaster, scissors, I V normal saline, Intubation kit, Suction apparatus, etc) should be done
2. Selection of Anaesthetic solution
To all normal patients 2% Xylocaine – 30 ml mixed with adrenaline 0.5 ml (1:1000) with
To patients with hypertension and cardiac diseases 2% xylocaine with 1 amp
As the time taken for cataract surgery is short, it may not be necessary to add Bupivocaine
along with xylocaine for anaesthesia. The only advantage may be that the patient may not feel
the pain for a long time as there is prolonged anaesthesia. At the same time it is known that the
bupivocaine produces lid edema and chemosis.
3. Quantity of anaesthetic solution 4. Needles
For facial & peribulbar block use No.23, 1" disposable needle
Alternatively we can use sub conjuntival No 26G,1/2" disposable needle through trans
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol 5. Checking the case records
Confirm the name of the patients. If you find two or more with the same name, confirm
patients relative routinely with place. E.g. W/O, H/O, F/O, M/O, S/O
Recheck for specific systemic diseases (e.g. asthma, etc.)
Any complicating conditions like - PXF, Subluxated lens, rigid pupil etc.
Whether diabetes controlled - FBS < 140mg%
BP < 100mmhg diastolic and < 160mmhg systolic 6. Hypotony
Massage is to be either digital or by super pinky.
indicated Vigorous massage avoided in Corneal status, anesthesia and akinesia checked LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol 7. I.V. Mannitol
2.5 cc per kg body weight of 20% Mannitol to be given about half an hour before surgery.
Avoid in uncontrolled HT, cardiac patients, and renal diseases. Before starting drip check BP
Indications
Patient is moved on the stretcher and is told to avoid ambulation for 6 hours.
8. Informing the surgeon
Inform the operating surgeon in case of any complicating condition.
Inform if surgery other than cataract / IOL
Patients with the same name, check the address in details & also the eye
9. Decision regarding the postponing the case
BP - diastolic > 90mmhg, systolic > 150mmhg
Any complication of local anaesthesia
Local factors - any infection of lids and adnexa
IOP of more than 30 mm hg in spite of all medications, except in lens-induced
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol 12. Managing Anaesthetic Complications
The patient to be made to lie down in supine position and the legs raised up. The
room should be airy. The patients clothes should be loosened
Give IV atropine one amp. If there is bradycardia or hypotension.
To keep resuscitation equipment ready like - oxygen cylinder, endotracheal tube,
laryngoscope, ambu bag, scalp vein set, emergency drugs.
Periodic check of expiry dates of emergency drugs.
To inform anaesthetist or physician, if patient does not have adequate recovery.
Start patient on acetazolamide, check tension
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol STANDARDIZED PRE-OPERATIVE PROTOCOL FOR CATARACT SURGERY The purpose of the pre operative assessment is to:
• Confirm the diagnosis of visually significant cataract
• Ensure the cataract is the cause of the visual symptoms
• Determine if there is co-existing ocular pathology
• Ensure the patient wishes to undergo surgery & understands specific risks if any
• Assess systemic problems and to manage it
1. Admission:
Admission is done one day earlier or 2 hours prior to surgery (For local patients, who had pre op.
investigations earlier) on the day of surgery
a. Patient is preferably seen by the operating surgeon, especially if they for posted for re-surgery
or have other associated complications requiring deviation from regular surgical technique.
b. Slit lamp examination in detail and to look for conjunctival congestion, discharge, cornea, AC
depth, lens maturity (in Phaco cases) and phacodonesis.
d. Posterior segment evaluation of both eyes, if view is sufficient.
e. Ask for history of systemic illness/ allergy to drugs.
f. To explain about possible conversion to routine ECCE with IOL in cases with small pupil and
advanced nuclear sclerosis who want phacoemulsification.
g. One-eyed patient should be given identification markings.
2. Investigations a) Routine Investigations: For all cases
3. Duct – including application of pressure over the sac region
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol Additional investigations
1. ECG for adults (For known cardiac patients, those with history suggestive of cardiac
2. Chest x-ray (If advised by physician)
c) Additional investigations: For GA cases d) Conjunctival culture is required in the following cases
3. H/O Chronic infection eg. Blepharitis
4. Duct not free & partially free with clear fluid
6. In post Trabeculectomy patients going for cataract surgery
7. Any H/O previous intraocular surgery (preferably) .
e) Checking of Xylocaine sensitivity
Optional in patients with h/o drug allergy.
3. Biometry
An interocular difference in axial length of more than 0.3mm or K readings which vary by
more than one dioptre requires confirmation. These results should only be accepted when
repeated measurements show consistent results
When there are large differences between the K readings and/or axial lengths, consider the
possibility of amblyopia or vitreous opacities such as asteroid hyalosis. An amblyopic eye
may have been forgotten by the patient and may not be corrected in the current spectacle
For highly myopic eyes (axial > 28mm), B-scan should be carried out to determine the presence or
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol The SRK T is regarded as a very good general formula. The doctor doing the pre operative assessment also should formulate a surgical plan including:
• Type of anaesthesia (Including need for stand by anaesthetist)
• IOL type and power (order special lenses if required)
• Incision placement and astigmatism reduction procedures if appropriate
• Complexity of surgery e.g. small pupil, pseudoexfoliation, previous eye surgery
• Level of surgical experience required
4. Pre-medication
All patients should wash their face with soap and water. The ward nurse should then clean the
brow region and lid margin with 5% povidone iodine solution
Topical antibiotic: 6 – 8 times previous day and hourly on the day of surgery
Preferred antibiotics – Ciprofloxacin eye drops
Diazepam 5 mg: Previous night (optional)
There is no need for pre operative oral or parenteral antibiotics. In high risk cases T.Ciprofloxacin
500mg twice daily for 3 days may be useful.
5. Instruction regarding dilatation
Tropicamide with phenylephrine 1 drop every 15 min. 2 to 3 times
Plain Tropicamide for hypertensives and cardiac cases
Ketrolac eye drops 3 times every 15 min.
6. Patient’s cleanliness LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol
-Hair cut if necessary previous to surgery.
7. No clipping of eye lashes if drapes are used. Technique for applying the drape: Apply drapes taking particular attention to ensure its tight
adherence at the medial canthus, nasal bridge and naso – labial fold. Keep the adhesive slightly
redundant over the open eyelids while applying. However, prevent corneal touch. Lift the
temporal edge of the adhesive at the lateral canthus and make a horizontal slit upto the medical
canthus. At the medical canthus, extend the cut in a “V” or “T” shaped manner. Insert the
eyelid speculum through the slit opening in such a manner that the eyelid margin and eyelids
are wrapped with the edges of the adhesive.
8. Pre - Operative counseling:
Explain to the patient about the anaesthesia, surgical procedure, the level of pain they may
experience during surgery, about draping etc., Also explain about the post op. follow up and
explain the do’s and don’ts during the post op. period. Group counseling is preferred.
9. Day of surgery
One eyed and diabetics patients to be given preference in surgery list
Clean clothing to be worn by the patients
Medication:
T.Acetazolamide – 1 hour before surgery
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol PRE OPERATIVE PROTOCOL FOR MANAGEMENT OF SYSTEMIC DISEASES Decision Making on patients with systemic diseases Diabetes Criteria for admission; Criteria for surgery
With FBS < 160 mgs % on the day of surgery
On the day of surgery
To stop oral anti diabetic drugs on the morning of surgery
If on insulin, 1/3 of the dose to be given in the morning
Hypertension Criteria for admission Criteria for surgery Upper limit is 180/100 mm hg
For cases coming from camp having high BP, give sedatives first before starting anti-
hypertensive drugs. Check the BP in the ward before going to OT.
On the day of surgery
To avoid adrenaline in local anaesthesia
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol Cardiac cases Criteria for admission
A recent ECG & clearance by physician
Surgery to be undertaken a minimum of 3-6 months after myocardial Infarction
Oral antiplatelet need not be stopped for cataract surgery
If on oral anticoagulants to check for prothrombin time
If less than 18 seconds can be taken for surgery
On the day of surgery
No adrenaline in anaesthetic solution or phenylephrine for dilation.
Cautery should not be used in patients with pace makers.
Stand by physician or anaesthetist Asthmatics Criteria for admission
1. Asthma should be under control with drugs
2.To continue the medicines during hospital stay
3. Check for wheeze before surgery and if present give IV bronchodilators or steroids
On the day of surgery
Special care for ventilation while draping. All asthmatics need an airway during surgery.
Use Oxygen / Nebulizer during surgery if the patient is uncomfortable.
Inj. Deriphylline / Dexamethasone 1 amp. IV, SOS
Switch off the air-conditioner (optional)
Avoid NSAIDS. If needed to use tablet nimusulide / paracetamol
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol Renal Failure/renal transplant
If systemic antibiotics are needed give Oral or IV ciprofloxacin
Any septic focus
Dental infection, history of purulent discharge
Physician's opinion essential
Recently diagnosed uncontrolled asthmatics
Other systemic problems if any (To be decided by doctor)
Patients with systemic illnesses are encouraged to go back to their treating physicians for control of their problem and get it controlled before coming for admission. Admitted if the patient is unwilling to go back and allow them to stay few days to prepare them before surgery. Choice of sedation
Anxious or uncooperative patients should be given IV midazolam. This should be given only
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol POST-OPERATIVE MANAGEMENT Routine Management of uncomplicated cases On the day of surgery: Before surgery: T.Acetazolamide – 1 hour before surgery
After surgery: T. Paracetamol 500 mg, repeated after 8 hours if needed.
Planned ECCE / SICS / with IOL / without IOL :
First dressing can be done 8 hours after surgery.
Look for the following findings (pupil to be dilated)
Section - Apposition of Wound / Wound Leak / Gape
Cornea - Epithelial Defect, Edema, SK
A.C. - Hyphema, Hypopyon, Cortical Matter, Depth
PC - Opacity, Rent, Vitreous disturbance
The main aim of postoperative examination in the morning is to look for any early sign of
infection, as one has to withhold the steroids and start other intensive measures.
Routine Medication – 1st day
Immediate post-op analgesic tablets along with Tab. Acetazolamide SR 1 tab –optional.-if
Combined Antibiotic & Steroid eye drops are applied four to six times per day as required
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol
Base Hospital patients – 1st PO day
Camp – 1st PO day / ideally on the second or third day.
Keeping the camp patients for one extra night will help to properly counsell them
about follow up , post op. medications, health education as well for motivating them to
motivate others in the community to come for surgery.
On discharge check the following: On discharge explain about:
Advise the patient regarding tapering dose of Combined Antibiotic & steroids
Ofloxacin with prednisolone & ofloxacin with dexamthasone eye drops.
• 6 times a day - 7 days • 5 times a day - 7 days • 4 times a day – 7 days • 3 time a day - 7 days • 2 time a day - 7 days • 1 time a day - 7 days • Cycloplegics (Homoatropine / Cyclopentolate ) & NSAID (Diclofenac) drops or other
medications given if required – for 10 days.
Like the pre operative period, there is no need for systemic antibiotics or for prolonged use of
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol Special Instruction during Discharge:
Encourage mobility and early resumption of routine activities
No head bath for 7 days /camp patients 30 days.
Normal diet from the day of operation
No river or pond bath (dip in) for 3 months
After suture removal no pond or river bath for at least 1 week
TV viewing & reading if comfortable
Not to drive two wheelers without protecting glasses
Not to lift heavy weight for ECCE with sutures
Dark glasses to be used for one month for outdoor activities till regular glasses
To report immediately if they have: Routine follow up FIRST follow up – After 30 days ;
• Refraction, Slit lamp exam. Fundus exam. • Glass prescription if visual recovery is satisfactory • If visual acuity is not good look for CME & Start NSAID drops • Follow up SOS or after 6 months.
The patients who have undergone Manual SICS can be given spectacles after 30 days.
However it is preferable to see conventional ECCE – IOL patients after three months for
refraction and removal of sutures, if required.
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol MEDICATION PROTOCOL FOR CATARACT SURGERY I. Pre operative:
1. Ciprofloxacin eye drops: 2 drops for 6 times on the day before surgery.
2. T.Alprazolam 0.25 mg – 1 tablet at bed time
II. On the day of surgery: For dilatation
Tropicamide with phenylephrine 1 drop every 15 min. 2 to 3 times
1% cyclopentolate 1 drop every 15 min. 3 times
NSAID eye drops 3 times every 15 min.
surgery:
T. Alprazolam 0.25 mg (Optional)- In the morning
T.Acetazolamide – 1 hour before surgery
Anaesthetic solution for giving retro or peribulbar block
Normal patients: 2% Xylocaine (30ml) mixed with 0.5 ml of adrenaline with (1:1000) with 1,500 units of Hyaluronidase.
Patients with hypertension and cardiac diseases: 2% xylocaine with 1,500 units of
Hyaluronidase (with Bupivocaine (1:1)-optional.
Quantity of anaesthetic solution After surgery in the ward on the day of surgery
1. T. Acetazolamide SR – 1 tablet SOS.
2. T.Paracetamol – 1 tablet twice daily
LAICO, Aravind Eye Care System Standardized Cataract Surgical Protocol III. First postoperative day
1. Combined Antibiotic & Steroid eye drops are applied four to six times per day as required
3. Other drugs like acetazolamide and NSAID drops or tablet to be given if required
IV. After discharge
3 bottles of steroid antibiotic solution of 5 ml each
Advise the patient regarding tapering dose of Combined Antibiotic & steroids
Cycloplegics (Homoatropine / Cyclopentolate) & NSAID (Ketrolac) drops or other
medications given if required – for 10 days
There is no need for routine use of oral antibiotics either pre operatively or post operatively.
Antibiotic steroid combination eye drops is sufficient for post operative use and there is no
need for additional antibiotic eye drops.
LAICO, Aravind Eye Care System
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