8.6 Criteria for Suitability of Procedures
Description
This article is from the Vision and Eye Care FAQ, by grants@research.canon.com.au (Grant Sayer) with numerous contributions by others.
8.6 Criteria for Suitability of Procedures
PRK: The following guidelines are suggested for those individuals suitable
for the procedure
1. no significant change in prescription in the last 12 months (ie more
than 0.5 dioptre);
2. prescription of up to -16 dioptres;
3. astigmatism of up to 6 dioptres;
4. superficial corneal scars or dystrophies of less than 200 microns
(ie nice, flat corneas); and
5. can afford to pay (see below for costs)
6. best for young people ( 30 and under) with higher corrections (-4.5 to
-9.0) who don't mind greater pain and are willing to wait longer for
sharp vision.
RK: The following guidelines are suggested for those individuals
suitable for the procedure
1. Best for over 35yr old; ideal refraction -4 and under
ALK: The following guidelines are suggested for those individuals
suitable for the procedure
1. Best for people with refraction/conditions which unable to meet
requirements for RK/PRK.
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