13.1 Minor Procedures

Question 1

Refractive surgeries mean

Answer 1

Correcting refractive error so the lights hit retina (not in front or behind)

Question 2

In myopic refractive error surgeries on the cornea

Answer 2

Go from steep cornea to flatter

Question 3

In hyperopic refractive error surgeries on the cornea

Answer 3

Go from flat to steeper (usually periphery of cornea is made flatter so center seems steeper)

Question 4

Commonly used if corneas are too thin to qualify for LASIK

Answer 4

PRK. B/c there’s no flap, so don’t have to have such a thick cornea

Question 5

LASIK vs PRK

Answer 5

LASIK flap- instant vision/ low pain. VS. PRK- no flap, healed under BCL, pain/irritation for 4 days, blurred vision for weeks as heal

Question 6

PTK

Answer 6

Phototheraputic keratectomy- smooths over scars anterior cornea

Question 7

RK

Answer 7

Radial Keratotomy- 8 slices into cornea (used prior to LASIK for myopia only)

Question 8

PK vs DMEK

Answer 8

Penetrating graft is full thickness corneal garft(all layers replaced with organ donor cornea). VS. DMEK just descemets back layer of pumps that house the corneal pumps replaced with a graft

Question 9

Difference between LPI and SLT glaucoma procedure

Answer 9

LPI hole in iris for NARROW angle. VS. SLT is for OPEN angle (cleans out gutter- trabecular meshwork

Question 10

Vitrectomy

Answer 10

Removal of vitreous (think big floater in way of vision)- usually gets gas bubble after

Question 11

Photocoagulation retinal laser

Answer 11

Stops bleeding in periphery of retina (leaves the yellow round scars 360)

Question 12

Anti-vegf

Answer 12

Retinal injections for neovascularization (new but bad vessel growth)

Question 13

Incision vs excision

Answer 13

Incision is cutting IN tissue (like during PCIOL surgery make a incision in cornea to get into the eye) . VS. Excision cutting something out like a growth