Corneal Topography and Tomography — Flashcards

Flashcard 1: Hyperopic Photorefractive Keratectomy (PRK) is used for the treatment of _____

Answer: Hypermetropia

Flashcard 2: Inadequate residual stromal bed thickness before doing a LASIK can predispose the patient to development of _____

Answer: keratectasia

Flashcard 3: _____ IOL used to correct pre-existing astigmatism

Answer: Toric

Flashcard 4: ICRS is used for the mx of _____ and low myopia.

Answer: keratoconus

Flashcard 5: LASIK is used for the treatment of:

Answer: Myopia, Hypermetropia, and Astigmatism

Flashcard 6: ICRS implantation is used for treatment of _____

Answer: Myopia and Keratoconus

Extra: Intracorneal Ring Segments (ICRS), such as Intacs, are thin plastic semi-circular rings inserted into the deep corneal stroma. 1. **Mechanism**: They flatten the central cornea. 2. **Indications**: - Mild to moderate myopia (-1.00 to -3.00 D). - Keratoconus (to reduce corneal irregularity and improve contact lens fit).

Flashcard 7: PRK is used for treatment of _____

Answer: Myopia, hypermetropia, and astigmatism

Flashcard 8: PARK is a technique that is used for correcting _____.

Answer: astigmatism

Flashcard 9: Is ICRS implantation reversible?_____

Answer: Yes

Flashcard 10: What is the most frequent post-op complication of LASIK?

Answer: Dry eye (Punctate epithelial erosions)