MIDTERM Flashcards

1
Q

Reversible loss of feeling or sensation

A

Anesthesia

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2
Q

Types of ocular anesthesia

A
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3
Q

Advantage of G/A

A
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4
Q

Complications of G/A

A
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5
Q

Objective in G/A

A
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6
Q

Local anesthetic techniques

A
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7
Q

General anesthetic techniques

A
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8
Q

Indications for G/A

A
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9
Q

Acts by producing reversible block to the transmission of peripheral nerve impulse

A

Local anaesthesia

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10
Q

Advantages of L/A

A
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11
Q

Toxicity of L/A

A
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12
Q

L/A is not suitable for

A
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13
Q

Disadvantages for L/A

A

Light headedness
Numbness
Tinnitus
Drowsy
Anxious
Convulsion
Coma

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14
Q

Types of L/A

A

Amide Group
-lidocaine
-mepivacaine
-bupivacaine

Ester Group
-procaine
-tetracaine
-cocaine
-benzocaine

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15
Q

Advantages of Topic Anesthesia

A

Cost effective
Immediate visual recovery
Avoidance of complication

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16
Q

Disadvantages of Topical Anesthesia

A

No akinesia
Not suitable for extended surgery
Well informed and motivated px is required

17
Q

Adverse effect of T/A

A

Epithelial and endothelial toxicity
Allergy to drug
Alteration of lacrimation
Surface keratopathy

18
Q

Uses of topical anesthesia

A

Manipulation of superficial cornea and conjunctiva
Phacoemulsification in cooperative px
Prior to regional blocks

19
Q

Aim of Peribulbar block

A
20
Q

L/A agent for peribulbar

A

Lignocaine- 2%
Bupivacaine- 0.75%

21
Q

Insertion Joint for peribulbar

A

1st- medial 2/3 and lateral 1/3 of lower lid
2nd- medial to medial canthus

22
Q

Peribulbar position of patient

A

Supine and in primary gaze

23
Q

Uses of peribulbar block

A

Cataract
Vitreoretinal surgery
Strabismus
Glaucoma
Keratoplasty

24
Q

Advantages of peribulbar block

A

Less chance of globe injury
Less chance of optic nerve damage

25
Q

Disadvantages of peribulbar block

A

Pain
Conjunctival chemosis
Less akinesia than retrobulbar block