This blog is about new entrants to the Colombo Medical Faculty of the University of Ceylon (as it was then known) in June 1962. There were a total of 166 in the batch (included 11 from Peradeniya).Please address all communications to: colmedgrads1962@gmail.com.You may bookmark this page for easier access later. Header image: Courtesy Prof. Rohan Jayasekara, Dean, Faculty of Medicine, University of Colombo (2011 - 2014). Please use the search bar using a key word to access what interests you
Sunday, January 23, 2022
My paintings of Animals by Chirasri
Saturday, January 15, 2022
Dr Lakshman P Weerasooriya MD
Dr Lakshman (Lucky) P Weerasooriya MD
It is with immense sadness that I record the passing away of Lakshman (Lucky) Weerasooriya. He lived in Florida, USA. The news was sent to me by Lucky Abey to be published in the Blog.
The new photo was sent by Lucky and replaces the poor quality image which was extracted from a Batch Reunion Group photo taken
in 2007 at Habarana, Sri Lanka.
Lucky belongs to the famous and illustrious Dodanduwe Weerasooriya clan. He was a General Practitioner based in Englewood Florida, USA. He was married to his teenage sweetheart Ruvini and they have 3 sons. The first two, Romesh and Shanaka, are Dentists and the third Viraine is a Paediatric Gastroenterologist. Lucky had a degenerative neurological condition which made him dependent in his last years. He was well cared for by his loving wife and children.
We all join in sending our deepest condolences to his family.
Until he ran into medical problems, Lucky demonstrated his
artistic skills with several high-quality photographs and paintings which were
published in our blog. The last painting appeared in March 2014. Painting
became a hobby after his retirement.
I am posting one of his superb paintings, “A street in Madrid
after rain” as a tribute.
Added on Jan 18th 2022. Picture sent by Indra A
Left to right-
Indra Anandasabapathy,
Devarani Anandasabapathy,
Lucky Weerasooriya and Ruvini,
Thanam Caanthan.
Speedy
Thursday, January 13, 2022
A BIT OF HUMOUR
A bit of Medical Humour
These are supposed to be sentences exactly as typed by medical secretaries in an NHS (National Health Service) Hospital Trust in the UK I can not vouch for its veracity, but they certainly made me laugh! - Speedy
Saturday, January 1, 2022
Ask the Expert .. Chirasri Jayaweera Bandara on Cataracts
ASK THE EXPERT........
A New Series on our Blog. I shall request colleagues to enlighten us on topics of great interest to us as we are all well into the stage where these topics have become more relevant to us. I shall add some relevant prior posts to this category.
The first is on cataracts and cataract surgery by our Batch expert Chirasri Jayaweera Bandara, retired Consultant Eye Surgeon who very kindly responded to my request.
CATARACT SURGERY - Dr Chirasri Jayaweera Bandara
TYPES OF CATARACTS:
3.Traumatic 4.Metabolic 5.Druginduced
a.Contusion a.Diabetes a. Corticosteroids
b.Penetrating injury b. Galactosemia oral & topical
c.Radiation c.Hypocalcaemia b.Phenothiazines
d.Electrical injuries
e.Chemical injuries d. Wilson’s disease c. Miotics
e. Myotonic Dystrophy d. Amiadarone
e. Statins
f. Tamoxifen
VARIETIES OF CATARACTS
1. Cortical - Lens opacities in the periphery
2. Nuclear - Lens opacities in the nucleus
3. Posterior Sub Capsular (PSC) Lens Opacity – Starts as a small lens opacity at the back of the lens right in the path of light
·
Early
decrease in vision is noted by patients in the 2nd and 3rd varieties of
cataracts mentioned above.
·
This
is felt mostly when exposed to the sun as pupils get constricted and block the
light through the periphery of the lens. Wearing dark glasses will help initially
at this stage.
·
Treatment
for cataracts is only surgery when vision is compromised.
· Surgery is done when patients find it difficult to carry out their daily routine satisfactorily.
SURGERY
Historically done under general anaesthesia or retrobulbar Lignocaine injection.
At present, it is usually with topical anaesthesia (
Lignocaine ) and occasionally with subtenon Lignocaine injection.
IN THE PAST
IntraCapsular Cataract Extraction
(ICCE)
The whole cataract was extracted after pupillary
dilatation and after making the incision at the superior half of the limbus. (corneoscleral
junction).
This was done with the Erysophake or Intracapsular forceps or the Cryoprobe.
Next, ExtraCapsular Cataract Extraction (ECCE)
After pupillary dilatation, an incision is made at the superior half of the limbus, then a Capsulotomy is done where the anterior capsule is cut in a circular manner with a bent tip of a 26 G needle. The circular piece of the anterior capsule was removed, leaving an annular anterior capsule and the whole of the posterior capsule intact.
Once the cataract is removed the vision will only be 1/60 (i.e. only
one meter
distance will be visible).
In the past after cataract extraction patients were
given very thick glasses.
+10 to +12 Diopter power glasses (“ bothal adi “ glasses ) as IOLs were not available.
INTRA
OCULAR LENSES (IOL)
Biometry is done prior to the surgery to calculate the
IOL power to suit the patient's eye measurements.
PMMA PolyMethylMethAcrylate IOL is inserted through the large limbal incision after extracapsular cataract extraction. Because of the relative rigidity of these lenses, a large incision was required.
CURRENTLY
PHACOEMULSIFICATION CATARACT SURGERY
Preoperatively,
·
Best
corrected vision is noted.
·
Cataract
assessment is done at the slit lamp.
·
The eyelids for blepharitis, clarity of the cornea, type of cataract and the viability of the
capsular bag and the zonules which hold it in place are examined.
·
Intra Ocular Pressure ( IOP) is checked.
·
Pupils are dilated and the retina is checked
to assess visual prognosis.
·
Fasting
blood sugar, ECG along with a general systemic examination is done.
·
Antiplatelets
and anticoagulants are omitted with cardiology guidance, but this is not
compulsory as the incision could be made at a bloodless area through the
cornea.
·
IOL power is calculated with biometry.
· The pupil is dilated fully.
Intraoperatively,
·
Topical
Anaesthesia Lignocaine is instilled along with dilute betadine solution prior to
commencing the surgery.
·
Sterile
drape applied.
·
Speculum
placed to keep the lids opened and eyelashes out of the field of surgery.
·
Done
under an operating microscope with the patient lying supine.
·
Surgeon
sits at the head end of the operating table or on the (temporal) side of the
head.
·
Incision
2.2 mm made with a Keratome at the limbus. (main port)
·
Combined
solution with anaesthetic and dilating agent is introduced into the anterior
chamber.
· Methylene blue is injected into the anterior chamber to stain the anterior capsule of the cataract.
·
26 G Needle
tip is bent in preparation of capsulotomy.
·
Methylene
blue (injected earlier) is washed off with balanced salt solution (BSS) .
·
Viscoelastic
material is introduced into the anterior chamber to maintain intraocular space
for the next steps of the surgery.
·
Capsulotomy
is done in a circular curvilinear manner central to the dilated pupil with the
bent tip of a 26 G needle or with a
Capsulorrhexis forceps.
·
Circular
piece of the anterior capsule is removed.
·
Hydrodissection
is done by injecting Balanced Salt Solution (BSS) under the remaining capsule to
separate the nucleus from the capsule.
·
Two
side ports 1.1 mm are made opposite to each other, generally around 90 degrees
from the main port (according to the surgeon’s preference).
·
The
Phacoprobe is introduced through the main port into the anterior chamber.
PHOTO 1 PHACOPROBE
Note at the bottom (diagram) The Ultrasound power line is attached to the centre of the probe, the irrigation and aspiration lines alongside. Also note above (diagram) The irrigation port near the tip and aspiration port at the tip. |
·
A groove is made in the cataract with the
Phacoprobe as shown below.
PHOTO 2
GROOVING
·
The
nucleus is rotated and another grove is made at right angled to the former.
·
The
nucleus is first cracked into 2 as shown below.
PHOTO 3 NUCLEUS OF THE CATARACT CRACKED INTO 2
· The halves are then cracked further resulting
in 4 quadrants.
· Finally it is emulsified and aspirated.
· Then the remaining cortical lens matter is
aspirated and a clean capsular bag with
an annular peripheral ring of the anterior capsule and the whole intact posterior
capsule is left for IOL insertion.
·
Foldable
Acrylic IOL is introduced through the main port. The IOL
unfolds
itself into the capsular bag.
·
Premium
IOLs – Multifocal/astigmatic IOL s are also available on request.
· The incisions are sealed by hydrating with BSS which will cause a small localized opacity lasting only a few minutes
PHOTO 4 FOLDABLE ACRYLIC I.O.L.
POST OP
·
Antibiotics,
Steroids and Non Steroidal Anti Inflammatory Drugs (NSAID)
eye drops
are prescribed, with a tailing off dose spanning a month or so
(if uncomplicated)
·
Surgery
could be done as a day surgery (in the Private sector in Sri Lanka)
·
In the
Government Hospitals in Sri Lanka, the patients are routinely admitted the
previous day and they may be discharged the next day.
·
Glasses
are prescribed for near work (presbyopic glasses).
· Patients who get Multifocal IOL inserted at the time of surgery, could do near work without the need for presbyopic glasses.
Surgery was done by my daughter Anjali Jayaweera Bandara Senior Registrar, Eye Hospital Colombo.
I am thankful to Anjali for recording her surgery and producing the video with captions.
Note from Speedy...
What follows is a video of a cataract surgery performed by Chira's daughter Anjali Jayaweera Bandara Senior Registrar, Eye Hospital Colombo.
Please read the steps of the surgery given above before watching the video of cataract surgery.
Please click on the image to commence the video.
To see the video in FULL SCREEN, when the video starts, please click the icon at the bottom right (as in any YouTube Video). The icon will appear ONLY when you start the video.
ASK THE EXPERT.........Questions on Cataract Surgery (sent by Mahendra )
1. Q. Will all who develop cataracts need an operation if they live long enough?
A. Not if the vision is good and you are managing your daily routine satisfactorily.
2. Q. How
important is the timing of when to remove?
A. When you cannot manage your daily routine and feel you need better vision.
3. Q. Will
a delay in an operation lead to a poorer outcome?
A. When the cataract becomes hypermature,
the proteins leak out through the
capsule,
causing a reaction in the anterior chamber, increasing the intraocular pressure
which results in a painful red eye. This is called Phacolytic Glaucoma.
Then the patient is initially treated to reduce the eye pressure and inflammation preoperatively. In some cases, vision may not be very good.
4. Q. Is it common for senile macular
degeneration to coexist with cataracts?
A. No, it generally has a different pathology and is not as common as senile cataracts
5. Q. What are the indications for operation?
A. Poor vision, when the patient cannot manage
the daily routine.
When glaucoma is secondary to cataract
A breach in the lens capsule (in case of traumatic cataracts)
6. Q. Can both eyes be done at the same time?
A. Not routinely, because of the rare complication of infection.
7.
Q. If not how far apart should they be if both need doing?
A. Generally, after 3 months but it could be done before if indicated.
8. Q. How
safe is it?
A. Safe in good hands.
9. Q. Are there recognised complications?
A. Posterior
capsular rupture (PCR) during surgery.
Rare complication of lens drop into the
vitreous after PCR.
All these could be managed
successfully.
Rare complication of infection.
10. Q. How long does a cataract extraction take to
perform from the time of entry to the theatre to leaving?
A. Between 20 to 25 minutes. ( the surgery itself 15 to 20 minutes.)
11. Q. Is
it always a day operation?
A. It is day surgery in the
private sector in Sri Lanka but in the Government
sector patients are admitted the previous day and maybe discharged the following day.
12. Q. Am I conscious during the operation?
A. Yes,
surgery is done under topical anaesthesia or occasionally local nerve blocks.
Not done under GA unless exceptional cases or opted for.
13. Q. How do I keep my eye still during the
operation?
A. The patient is simply asked to look straight and it is aided by instruments by the surgeon.
14. Q. How much aftercare is required after the operation?
A. Not much but to instil antibiotic and steroid eye drops and to wear an eye shield for physical protection.
15. Q.
How soon can I drive a car
again?
A. In a couple of days depending on the vision in the other eye.
16. Q.
What types of lenses are
used to replace the affected lens?
A.
Foldable Intraocular lenses made of Acrylic material are inserted during Phaco
surgery.
PMMA (PolyMethylMethaAcrylate) material IOLs
are inserted in Extra Capsular Cataract Extraction. PMMA IOLs are rigid could
be inserted after phaco surgery too after enlarging the incision. (If foldable
IOLs are not available.)
Multifocal IOL are also inserted on request by the patient, where spectacles are not required for close work.
17. Q. What can a person
expect as an outcome and when will the benefits be seen?
A. Excellent outcome and benefits will be seen immediately intraoperatively provided the rest of the eye is normal.
18.
Q. Can any Ophthalmologist do it or are
there those who have specialised?
A.
Any Consultant Ophthalmologist,
Senior Registrar and trained Registrar
can do the surgery.
If readers have suggestions for the next Ask the Expert, please email me.
Speedy