Posters

Experience of using pointed applanation tonometer and traditional pneumotonometer in the early postoperative period after LASIK and cataract surgery

Poster Details

First Author: A.Iatcun RUSSIA

Co Author(s):    N. Kuznetsova   V. Kurenkov   O. Vasilyeva              

Abstract Details

Purpose:

To compare the data obtained in the measurement of IOP by applanation tonometer and traditional pneumotonometr on patients after LASIK and cataract´s phacoemulsification (early post-surgery period).

Setting:

Patients with no edema cornea underwent pointed applanation tonometry (Icare Pro) and traditional pneumotonometry (Nidek NT-2000) since day 1 after surgery (280 eyes after Lasik and 103 eyes after phacoemulsification).

Methods:

In the early post-surgery period (1 week) patients require controlling IOP values if older than 40, glaucoma in family members or if using local/systemic corticosteroids. The corneal syndrome after LASIK increases blinking rate (pneumotonometry), decreasing the measurement accuracy. Also, IOP control is necessary for patients after phacoemulsification to timely prescribe antyhypertensive drops. Increase IOP is possible due to retention of viscoelastic in the anterior chamber. However, a false increase in intraocular pressure can be related as an error in the measurement using a traditional pneumotonometer.

Results:

Applanation tonometry was easily tolerated by all patients since day 1, which makes it more convenient to measure IOP in the early post-surgery period. Pneumotonometry shows IOP values higher by 4.6 mmHg comparing to pointed applanation tonometr after Lasik, higher by 4.1 mmHg after cataract surgery

Conclusions:

Using pointed applanation tonometry offers exciting possibilities in measuring IOP in the early post-surgery period. Measurement of intraocular pressure using applanation tonometr gives a smaller error in IOP measurement which may have an influence on postoperative regimen and exclude an unreasonable prescription of antihypertensive drops.In the group of patients after phacoemulsification, the use of applanation tonometr also showed more accurate data and easy patient tolerance of measurements. These data allow us to recommend applanation tonometry in the postoperative period as the most preferred method of measurement.

Financial Disclosure:

None