Treat of Strab: Surgery

Question 1

When is sx considered in ET?

Answer 1

> 20pd

Question 2

When is sx considered in XT?

Answer 2

> 25pd

Question 3

When is sx considered in vertical strabs?

Answer 3

> 10pd

Question 4

This is when the muscle is dis-inserted and reattached to the globe at a position posterior to the original insertion; weakens muscle action.

Answer 4

Recession

Question 5

What muscle is recessed for XTs? ETs?

Answer 5

XTs = LR
ETs = MR

Question 6

This is when the muscle is dis-inserted and a portion is excised and reattached at the site of the original insertion; strengthens muscle action

Answer 6

Resection

Question 7

What muscle is resected for XTs? ETs?

Answer 7

XT = MR
ET = LR

Question 8

This is when a portion of the TENDON is excised; weakens action

Answer 8

Tenectomy

- mainly SO

Question 9

This is when a TENDON is completely transected. Weakens action

Answer 9

Tenotomy

-mainly SO

Question 10

This is when a portion of MUSCLE is excised.

Answer 10

Myectomy

Question 11

This is when the MUSCLE is incised or completely transected.

Answer 11

Myotomy

Question 12

This is when the muscle is weakened by reducing the number of contractile elements without changing the contact with the globe.

Answer 12

Marginal myotomy

Question 13

What’s an alternative to surgery?

Answer 13

Botox

Question 14

What are the 3 uses for botox?

Answer 14

1. Primary tx
2. After surgery
3. Acute onset strabismus

Question 15

What are the side effects of botox?

Answer 15

1. Ptosis
2. Overcorrection
3. Vertical deviation