Early Postoperative Intraocular Pressure Changes after LASIK.
- Author:
Yong Sung YANG
1
;
Yun Sik YANG
;
Jae Duck KIM
Author Information
1. Department of Ophthalmology, School of Medicine, Wonkwang University, Iksan, Korea.
- Publication Type:Original Article
- MeSH:
Intraocular Pressure*;
Keratomileusis, Laser In Situ*;
Myopia;
Petrolatum;
Reference Values;
Retrospective Studies
- From:Journal of the Korean Ophthalmological Society
1998;39(9):1951-1958
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
In order to determine the normal range for intraocular pressure(IOP) in the post-LASIK population. We retrospectively reviewed the charts from the first 50 consecutive post-LASIK eyes. 50 eyes were divided into subgroups according to the degree of preoperative myopia, and the amount of ablated corneal thickness, and the diameter of treated optical zone. Preoperative(blaseline) & postoperative intraocular pressures at 1 day, 1 week, 1 month and 3 month were measured with air puff applanation tonometer. Mean postoperative intraocular pressures were compared to the baseline IOP in suvgroups and between inter-suvgroups. Postoperative IOP was decreased significantly in all 3 myopic suvgroups(p<0.05), but there was no pressure difference between inter-surgroups preoperatively(p>0.1) and postoperatively(p<0.3). Also the ablated corneal thickness groups and the treated optical zone groups showed an significant postoperative lowering of IOP(p<0/05) but there was no pressure difference between the subgroups preoperatively and postoperatively. And, in all suvgroups, post-LASIK intraocular pressures were underestimated more than a 30% of vaseline IOP. These results reflect that post LASIK IOP is not a true IOP.
