2. Surgical anatomy
Skin thinnest in eyelids
No subcutaneous fat
No or fine hairs present
Attached to medial lateral palpebral tendons
Dimensions of palpebral fissure:
Vertical: 8 – 11mm
Horizontal: 25 – 30 mm
3. Lateral canthus lies 1-3 mm above medial canthus
Highest point of palpebral fissure is at junction of medial and
central thirds
Structures of lid margin:
Cilia
Grey line
Meibomian ducts
4. Intermarginal strip has sharp posterior border
Tarsal plate is firmly attached to connective tissue and skin at
lid margin
Muscles of the lids:
Orbicularis oculi
Levator palpebre superioris
Corrugator supercilii
Muller’s muscle
5. Orbital septum
Unites tarsal plate to supra and infra orbital margins
Not uniform in thickness
Pierced by vessels and nerves
Medial palpebral tendon:
Connects both tarsal plates with medial wall of orbit on lacrimal crest
Gives origin to orbicularis oculi
6. Lateral palpebral tendon
Closely connected to tarsal plates, lateral raphe of orbicularis oculi
and lateral expansion of LPS
Attaches on a tubercle about 3 mm posterior to orbital margin
7. General considerations before surgery
Final shape and outline of features should be comparable on
both sides
Patient’s general state of health should be known
Local condition of the wound should be noted
Skin defects in the lids should be covered by sliding adjacent
skin or using flap from redundant skin
8. Lid margin should be preserved as much as possible
Orbicularis muscle should be disturbed as little as possible
Palpebral conjunctiva cannot be slided
Line of skin sutures should not directly overlie cartilage and
bone grafts
9. Technique of suturing
All blood clots and debris should be removed
Sutures should be applied with 6 – 0 braided silk with spatulated curved
eyeless needle
Slight eversion of cut edges should be done when sutures are tied
Colour of skin edge should remain pink
Sutures should be placed about 6 mm apart
Skin wound of 3 – 4 mm along skin crease needs no suturing
Wound of orbicularis at right angles to the muscle should be sutured with
6- 0 absorbable suture
10. Closure of full thickness lid margin
incision or wound
Should be closed in layers
Notching of lid margin should be avoided
11.
12. Absorbable 6 – 0 suture is placed as
close to lid margin as possible
Single knot is tied and approximation
is assessed
2 more absorbable sutures are passed
through tarsal plate
Silk 6 – 0 suture is passed through
grey line and left loose
1st absorbable suture is then tied
Orbicularis is sutured
Grey line suture is tied and left long
Lash line is sutured
Skin is sutured and long ends of
previous sutures are caught in them
16. Local flaps
Main sources are
Forehead
Glabella
Cheek
Transposition flaps such as Z plasty may be done
Advancement flap such as V Y operation may be used
In island flap, skin is raised in subcutaneous pedicle along
with blood supply from the pedicle and advanced over short
distances
17. Free grafts
Skin grafts:
Split skin grafts:
Preparation of donor site
Usually medial aspect of upper arm or thigh
General anaesthesia is used
Harvesting the graft
Donor site lubricated with sterile liquid paraffin or petroleum jelly
Donor skin stretched with skin graft boards
Graft taken with skin graft knife
18. Dressing donor site
Dressed with tulle gras and melolin
Light gauze bandage is applied
Left undisturbed for 10 days
Hemostasis achieved at recipient site
Fixation of graft
Graft stitched to edges of defect with fine silk
Dressing with tulle gras and proflavine wool is sutured with the graft
19. Post op care
Inspection of dressing at 24 and 48 hrs
Removal of sutures after 10 days
20. Full thickness grafts
May be taken from
Redundant skin in upper eyelid
post auricular skin
Pattern of recipient area is taken
Full thickness graft is taken and donor site is closed
Skin flap is defatted
Edges of graft are sutured to edges of the defect
Proflavine bolster sutured
21. Anchoring sutures may be applied
Daily inspection of graft to ensure no seroma or hematoma is formed
Stitches removed after 7 – 14 days
22. Hair bearing grafts:
Full thickness free grafts containing hair follicles
Local scalp flaps containing hair
24. Mucous membrane:
Conjunctiva
Free conjunctival flaps
Local transposition of conjunctival flap
Buccal mucosa
To cover defects in palpebral and bulbar conjunctiva after injury, burns
excision of neoplasms
May be taken from inner aspect of lower lip or cheek
25. Fat:
Free fat grafts shrink to almost half of their size
So not preferred for contour reconstruction
Used to repair depressed scars
Cartilage:
Thin cartilage grafts needed to reconstruct tarsus taken from auricle
or nasal septum
Cartilage grafts for reconstruction of orbital margins taken from rib
26. Bone:
Reconstruction of orbital floor is done with bone graft from iliac crest
Periosteal layer should be retained with the grafts
Fascia:
Used in ptosis surgery
Taken from fascia lata or extensor tendon of little toe
27. Pedicle grafts
Consists of skin, and subcutaneous tissue along with its own
blood supply
Skin of temporofrontal region is commonly used in eyelids
Good color match
May be hair bearing
Have to be advanced in stages
28. Expanded flaps
To cover large defects, flaps are expanded with tissue
expanders
More complications are seen with these
29. Muscle grafts
Microvascular transplantation of muscle will ensure its
survival at transplanted site
Function can be retained by preserving nerve supply
30. Free flaps
Transfer of skin flaps with their own arterial and venous
supply
Direct anastomosis of arteries and veins is done under
operating microscope
Large areas of skin, muscle and cartilage can be transferred
31. Lateral canthotomy
Indications:
To decompress orbit in cases with orbital cellulitis
Correction of partial ankyloblepharon or blepharophimosis
In cataract surgery for better exposure of globe as in deep socket
Procedure:
Skin at lateral canthus is made taut and lifted up
Hemostasis is achieved by crushing with mosquito forcep
32. One blade of a blunt ended scissors is passed into lateral fornix
Scissors is closed thereby cutting the tissue
Closure of canthotomy:
One interrupted silk suture passed through the two cut ends is
sufficient
33. Cantholysis
Indications:
Reconstruction of full thickness defect for quarter of length of lid or
more
Facilitate forward movement of lids in tarsorraphy
Procedure:
Dicision of one or both bands extending from tarsal plate to lateral
canthal tendon
Division of orbital septum from orbital margin may also be done
34. Canthoplasty
Lateral canthotomy is done
Bulbar and froniceal conjunctiva is undermined
Sliding flap of conjunctiva is carried through the skin 4 mm
lateral to extent of canthotomy
Mattress sutures are passed between skin and conjunctival
flaps to cover the raw surfaces
If conjunctiva is insufficient, free flaps may be taken
35. Canthal tendon operations
Division and fixation of medial canthal tendon:
Medial canthal tendon may get damaged due to injury or DCR
May lead to downward displacement of medial canthus
Repair:
36. Tendon is exposed
Anchored into a pre bored tunnel in
frontal process of maxilla
If the tendon is short, a non
absorbable suture passed at end of
the tendon is passed into the
tunnel, back into the tendon and
sutured
37. Replacement of
medial canthal
tendon
Narrow lamellar pedicle is cut from
upper tarsal plate
Reflected back on itself medially
over lower canaliculus
Free end is sutured to periosteum
over anterior iliac crest
38. Division of lateral palpebral tendon:
Done in rapidly progressive exophthalmos
Procedure:
Lateral canthotomy is done
Lateral margin of orbit is identified
Blunt ended scissors is spread posteriorly upto orbital tubercle
Scissors is turned so that the blades open in vertical direction
Tendon is engaged and cut
39. Reconstruction of lateral palpebral tendon
Fascia lata may be used
Procedure:
1.5 cm long incision is made at lateral canthus along skin crease
Orbicularis is retracted
Lateral ends of upper and lower tarsal plates are identified
Vertical incisions are made into each tarsus 4 mm long, 3 mm from its
ends
Tunnel of diameter 4 mm is drilled into orbital wall after retracting orbital
contents medially
40. Strip of fascia lata is split into ‘Y’
Base of y is passed into orbital
tunnel and emerging free end is
sutured over itself
Each arm of y is passed in the
buttonholes of the tarsal plates and
sutured over itself
Orbicularis incision is sutured over
itself with absorbable sutures
Skin is sutured with non absorbable
sutures
41. Closure of lid defects
Small defects:
Closed by advancement of adjacent skin or V – Y plasty
Full thickness defect for quarter of length or less:
Modified Wheeler’s operation is done
Full thickness defect for more then quarter of length:
Mustarde’s operation
Upper lid rotation from lower lid
Loss of more than half of eyelid
Cheek rotation flap for reconstruction of lowerlid
Lower lid rotation and cheek rotation flap for upper lid reconstruction
46. Mustarde’s cheek rotation flap for lower
lid reconstruction
Lower lid is reconstructed from cheek skin, nasal septum cartilage and nasal
mucosa
47. Mustarde’s cheek
rotation flap
Mobilisation of cheek flap
Nasal mucous membrane and septal
cartilage graft
• size of mucous membrane graft: 2.5
cm long and 1.5 cm wide
Fixation of cheek flap
50. Reconstruction of upper lid
Severe damage to upper lid is rare
Immediately jeopardizes safety of the eye
Points to be considered while reconstructing upper lid
Should be lined with conjunctiva or buccal mucosa
Should contain a supporting plate
Should have a muscle action if possible in form of orbicularis or LPS attachment
52. LPS may be torn in trauma
Retraction is prevented by lateral attachments of the muscle
Repair:
Local anaesthetic is injected
Site of torn aponeurosis is revealed by asking the patient to look up
Aponeurosis is held in a clamp and sutured to anterior surface of tarsus with 4 – 0
absorbable sutures
If primary repair has not been done timely, 6 – 12 months should be allowed to elapse
before attempting repair
53. Mustarde’s operation for reconstruction of
upper lid in 2 stages
Broad based full thickness flap of lower lid is made
Rotated into the defect as far as possible and sutured
2 weeks later base of flap is cut and remaining flap sutured to remaining defect
Lower lid is reconstructed with cheek flap and nasal septal cartilage and mucous
membrane
Principles for creating lower lid flaps:
If remnant of upper lid is present: hinge made on same side
If defect is total or central: hinge is placed laterally
Lacrimal punctum is not included in the flap
57. Neoplasm excision
Proliferative type of BCC does not invade deeper tissues
Lesions over lid margins also do not tend to involve tarsal plate
2 different sets of instruments should be used for excision of tumor and plastic
repair
Excision of neoplasm:
Proliferative lesion 3 mm from lid margin: lid margin structures should be preserved
Deeply infiltrative lesions: full thickness resection has to be done
59. Collar stud excision
with partial
tarsectomy
Done when main mass of lesion lies
away from lid margin with possible
involvement of tarsus at lid margin
Tarsal coloboma is closed with
interrupted absorbable sutures
Cantholysis may be used
60. Tarsal sutures are tied
Orbicularis bridge flap is sutuered
Full thickness skin flap is placed
over the defect
61. Medial canthus reconstruction:
When plane of excision is not upto periosteum: full thickness skin grafts are used
When plane of excision is upto periosteum:
V Y advancement of frontoglabellar flap for defect upto 10 mm
Midline frontal pedicle for defect more than 10 mm
62. Frontoglabellar flap
Inverted V incision is given
Flap is mobilized
Defect is closed
Flap is sutures in Y shape
Free conjunctival or buccal mucosal
flap is attached to undersurface
Medial end is sutured to periosteum
Flap is cut in centre to create upper
and lower lid
63. Midline frontal pedicle flap
Incision is given on glabella
and flap is raised
Anterior end of flap is divided
so as to fit upper and lower
lid defects
Anterior end is lined by free
conjunctival or buccal
mucosal flap
Anterior end of flap is
sutured to the defects
Vertical incisions on forehead
are undermined,
approximated and sutured
Medial limit of graft is
marked
Tulle is passed beneath the
pedicle bridge
After 18 days, pedicle is cut at
marked site
Fibrous tissue from
undersurface is excised and it
is sutured back to frontal
region
Medial edge of graft is
sutured
64. Total loss of lower lid and partial loss of
upper lid
Lower lid is reconstructed using cheek flap
If medial half of upper lid is lost, midline frontoglabellar pedicle flap is used
If lateral half of upper lid is lost, temporofrontal flap is used
65. Total loss of upper lid and partial loss of
lower lid
If lateral part of lower lid is conserved it is rotated to medial side of upper lid
Lateral part of upper lid is reconstructed with temporofrontal flap
Lower part of lid is reconstructed with cheek flap
When medial part of lower lid is conserved
Lateral defect closed with cheek flap
Upper lid reconstructed with supraorbital flap
66. Total loss of both eyelids
Four stage repair is done
Stage 1:
Remnants of conjunctiva mobilized and sutured with absorbable suture to cover the
cornea
Thin shaving of auricular cartilage may be placed to replace tarsus
Bridge pedicles of orbicularis are placed over the eye
Split skin graft is placed
67. Stage 2:
After 1 month, split skin graft is replaced with full thickness skin graft
Stage 3:
Eyebrow bearing transplants may be used for creating lash line
1 – 2 mm skin is kept between the two lash lines
Stage 4:
After 3 – 4 months after 1st operation, tarsorraphy is divided