Refractive/ Glaucoma surgeries

Question 1

Which refractive surgery uses one laser to create both the corneal incision and the stromal lenticule?

Answer 1

SMILE (small incision
* uses femtosecond laser

Question 2

What does MIGS stand for?

Answer 2

Minimally-invasive glaucoma surgery

Question 3

What is the primary goal of MIGS?

Answer 3

Providing safer surgical procedures for IOP reduction

Question 4

How are MIGS procedures typically performed?

Answer 4

Through a micro incision (usually a clear cornea or small scleral incision)

Question 5

What advantage do MIGS have in terms of tissue trauma?

Answer 5

Minimal trauma to the targeted tissue

Question 6

How do the efficacy and recovery of MIGS compare to traditional glaucoma surgeries?

Answer 6

• Reasonable degree of efficacy
• More rapid recovery

Question 7

True or False: MIGS have a less favorable safety record compared to traditional incision procedures.

Answer 7

False

Question 8

What is a common characteristic of MIGS in terms of surgical approach?

Answer 8

They are minimally invasive

Question 9

What type of pressure do MIGS aim to reduce in patients?

Answer 9

Intraocular pressure (IOP)

Question 10

Argon laser trabeculoplasty settings

Answer 10

Argon laser set:
spot size: 50 microns
Time: 0.1 second duration
Power: 700 mW (300-1000 mW range)

Question 11

Selective laser trabeculoplasty settings

Answer 11

SLT settings:
Laser 532nm Q-switch, frequency doubled, Nd:YAG
Spot size: 400 microns
Pulse duration: 0.3 ns
Power: 0.8 mj (in more heavily pigmented angles, initial power can start lower 0.3-0.6 mJ)