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Myopic shift

Poster Details

First Author: S.Ozturk TURKEY

Co Author(s):                  

Abstract Details


To demonstrate corneal findings in a patient with steroid-induced ocular hypertension after LASIK surgery.


World Eye Hospital Ankara Turkey


A patient with steroid-induced intraocular pressure (IOP) rise at fifth week after uneventful laser in situ keratomileusis (LASIK) surgery was evaluated with biomicroscopy and corneal topography with both Orbscan II and pentacam HR. Laser correction of myopia with spherical equivalents (SE) of -4.25 and 4.37 diopters in the right (RE) and left (LE) eyes was performed respectively. Femtosecond laser was used to create the corneal flap.Corneal reflectivity was slightly increased at the fourth week after surgery and topical dexamethasone drops were increased to 5 times/day.


IOP was raised to 35, 36 mmHg, refraction was -0.5, -1 diopters in RE, LE respectively. BCVA was preserved, corneal reflectivity was more pronounced. No interface fluid collection or corneal edema was observed via pentacam or biomicroscopy. Steroid was stopped, IOP dropped to 11 and 12 mmHg in 24 hours with topical anti-glaucomatous drops, myopia regressed 0.5 SE diopters in both eyes. Corneal reflectivity in pentacam was decreased immediately. Though orbscan showed an increase (43, 21 microns difference in RE and LE) in ectatic protrusion of the posterior cornea during the IOP peak, no change occurred in pentacam.


Increase in corneal reflectivity may be the first sign of steroid-induced ocular hypertension after the initial postoperative days and possibly precedes interface fluid collection or corneal edema. Pentacam and orbscan show difference about the posterior corneal response to IOP.

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