Author/Authors :
Karen K. Yeung، نويسنده , , Michael D. Olon، نويسنده , , Barry A. Weiman، نويسنده ,
Abstract :
PURPOE: To quantify and decribe the complexity of contact len correction on cornea altered by refractive urgery.
DEIGN: A cae-control tudy involving potrefractive urgery patient and control from one multidiciplinary contact len practice.
METHOD: The contact len care of one randomly elected eye of 30 potrefractive urgery patient (15 potinciional and 15 potlamellar refractive urgery cae) wa retropectively analyzed and compared with that of 30 age-and-gender matched nonrefractive urgery control. We quantified the complexity by the number of diagnotic lene ued to etablih the initial len order, the number of ordered lene required to complete the fit, and the number of office viit during the firt 4 month of len care. Final contact len optical power, corrected viual acuitie, complication, and len ucce/failure were alo tudied. The nonparametric Mann-Whitney U tet wa ued for tatitical analyi.
REULT: Potrefractive urgery eye utilized tatitically more diagnotic lene (P = .048), ordered lene (P = .008), and office viit (P < .0001). There were no tatitical difference in the number of office viit, number of diagnotic contact lene ued, and number of ordered contact lene between the potinciional and potlamellar refractive urgery patient. Although final contact len optical power were not ignificantly different (P = .06) between the two group, contact len corrected LogMAR acuitie were tatitically wore (P = .013) in the potrefractive urgery eye than in the control group. Contact len failure occurred in four potrefractive urgery eye, while no eye in the control group failed to tolerate contact lene.
CONCLUION: Cornea altered by either inciional or lamellar refractive urgery technique are more challenging to fit with contact lene than nonurgically altered eye, requiring more lene and chair time, while reulting in lightly poorer contact len corrected viion and more failure.