[Analysis of intraocular pressure after myopic photorefractive keratectomy].
OBJECTIVE
To explore the factors related to intraocular pressure (IOP) after excimer laser photorefractive keratectomy (PRK).


METHODS
Two hundred and nine cases (364 eyes) of myopia were studied with Goldmann applanation tonometer. All the patients were followed up for 12 months.


RESULTS
After PRK, a decrease was observed in the IOP. The IOP reading in the 12(th) month was lower than that in the 6(th) month (P < 0.001). A positive correlation was found between IOP and corneal thickness or corneal curvature (r = 0.172, P < 0.001, r = 0.182, P < 0.001). Regression equation for IOP drop (mmHg) = 1.156 + 0.22X(1) + 0.052X(2), [X(1) = decrease in corneal thickness ( micro m), X(2) = decrease in corneal curvature (D)].


CONCLUSIONS
The IOP measured after PRK for myopia is influenced by the corneal thickness, corneal curvature and steroid.
Wu
Xiaoying
X
Ophthalmic Laser Center, Xiangya Hospital, Hunan Medical University, Changsha 410008, China. xibuliadi@163.com
Liu
Shuangzhen
S
Huang
Peigang
P
Wang
Pingbao
P
D000293:Adolescent; D000328:Adult; D003315:Cornea / Q000601:surgery; D019781:Corneal Topography; D005260:Female; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology*; D054018:Lasers, Excimer; D008297:Male; D009216:Myopia / Q000503:physiopathology / Q000601:surgery*; D018903:Photorefractive Keratectomy / Q000379:methods*; D013997:Time Factors; D016896:Treatment Outcome