ライフサイエンスコーパス: LASIK

1 LASIK flaps were created using the 150-kHz IntraLase iFS

2 LASIK for primary high mixed astigmatism using optimized

3 LASIK has been shown to have an overall better outcome c

4 LASIK has both a neurotrophic effect on the cornea and l

5 LASIK has quickly become the refractive procedure of cho

6 LASIK significantly increases the refractive index of th

7 LASIK significantly reduced difficulties with night driv

8 sidents in the study performed a mean of 4.4 LASIK surgeries (range 1-10) during residency training s

9 Two topography maps of 98 LASIK participants were recorded preoperatively (Pre), 1

10 The method of creating a LASIK flap does not influence the changes in keratocyte

11 nd microkeratome are able to create accurate LASIK flaps.

12 y of the nerve measurements before and after LASIK (P = 0.24).

13 ues may be used to correct astigmatism after LASIK, but the treatment of irregular astigmatism requir

14 Many complications after LASIK are amenable to further treatment.

15 nd management of several complications after LASIK by reviewing the literature and relaying their own

16 e intensity from the stroma in corneas after LASIK was compared to that in untreated corneas by using

17 y has been found to initially decrease after LASIK, returning to baseline 6 to 12 months postoperativ

18 ve fiber layer thickness or optic disc after LASIK.

19 , 8 female) with postoperative ectasia after LASIK (23 eyes) and PRK (3 eyes) were included with a me

20 neal topography that developed ectasia after LASIK (ectasia group) and 174 eyes from 88 consecutive p

21 Ectasia after LASIK and PRK was arrested by CXL with stabilization or

22 eated with CXL for progressive ectasia after LASIK or PRK at the Institute for Refractive and Ophthal

23 14 patients with postoperative ectasia after LASIK were enrolled.

24 spheroequivalent refraction was found after LASIK.

25 The reduction in tear function after LASIK may induce an increase in osmolarity and consequen

26 al reports of steroid-induced glaucoma after LASIK have been published.

27 r bundles decreases by 90% immediately after LASIK.

28 ost nerve fiber bundles were also lost after LASIK, and these began recovering by the third month, bu

29 found intraocular pressure to be lower after LASIK, most likely an artifact of measurement as a resul

30 rves decreased >90% in the first month after LASIK.

31 rphology remained abnormal at 6 months after LASIK surgery.

32 o its preoperative appearance 6 months after LASIK, but in the flap stroma the nerve fiber bundle mor

33 It increased 6 and 12 months after LASIK, but remained less than half of the preoperative v

34 d at 1 week and 1, 3, 6, and 12 months after LASIK.

35 subbasal nerve fiber bundle morphology after LASIK were also investigated.

36 ective treatment for ectasia occurring after LASIK.

37 en cross-linking for ectasia occurring after LASIK.

38 well described complication occurring after LASIK.

39 ection of residual error of refraction after LASIK using the Pulzar 213 nm solid-state laser is an ac

40 ne and the spheroequivalent refraction after LASIK.

41 for the treatment of myopic regression after LASIK compared with control group.

42 In 22 individuals (39 eyes) returning after LASIK, we found no significant difference between the cl

43 ity of vision and patient satisfaction after LASIK can be difficult to assess because of the many var

44 luctuation, and foreign body sensation after LASIK and PRK at postoperative months 1, 3, and 6.

45 ay be responsible for the myopic shift after LASIK.

46 stroma, brightness was 715 +/- 117 SU after LASIK, and was not significantly different from brightne

47 affect recovery of the ocular surface after LASIK and may increase the risk for chronic dry eye.

48 possibility of developing new symptoms after LASIK surgery.

49 cted over time in epithelial thickness after LASIK treatment; however, the posterior stromal thicknes

50 CD according to the opacities thriving after LASIK (R124H) and PRK (R555W).

51 isfaction and higher quality of vision after LASIK.

52 dles decreased by more than 90% 1 week after LASIK and was significantly lower at all times after sur

53 decreased by 20% during the first year after LASIK and remained low through 5 years (P < .001).

54 During the first year after LASIK, subbasal nerve fiber bundles gradually return, al

55 croscopy in vivo during the first year after LASIK.

56 es in haze in the corneal flap 3 years after LASIK and could be used to examine changes in haze after

57 h dry eye symptoms at 1, 2, or 3 years after LASIK was not significantly increased relative to baseli

58 and 35 corneas of 18 patients 3 years after LASIK were examined by slit scanning confocal microscopy

59 Three years after LASIK, image intensity in the flap was 740 +/- 186 SU, a

60 3, and 6 months and 1, 3, and 5 years after LASIK, keratocyte density was measured using confocal mi

61 operties of the cornea through 5 years after LASIK.

62 l volunteers and 17 volunteers 3 years after LASIK.

63 pear to decrease between 2 and 3 years after LASIK.

64 n to preoperative densities by 3 years after LASIK.

65 f diplopia following cataract extraction and LASIK include decompensation of pre-existing strabismus,

66 thelia are a known complication of LASIK and LASIK-like procedures.

67 undergoing PRK (38 eyes of 23 patients) and LASIK (42 eyes of 25 patients) using the Technolas 217z1

68 pherical equivalent (MSE) for myopic PRK and LASIK (P<0.0001), weakly correlated with preoperative MS

69 ase than myopic corrections for both PRK and LASIK (P<0.0001).

70 Wavefront-guided PRK and LASIK are more predictable and provided better results t

71 d improved stability and efficacy of PRK and LASIK when combined with CXL, as well as a potentially d

72 ded better results than conventional PRK and LASIK.

73 0.2; P = 0.57) was similar between SMILE and LASIK eyes at 3 months.

74 atients were randomized to undergo SMILE and LASIK in either eye at a single tertiary referral eye ce

75 s, participant satisfaction (with vision and LASIK surgery), and clinical measures (visual acuity, re

76 h 9.1% of surveyed programs not offering any LASIK experience.

77 is very high myopia group can be included as LASIK candidates.

78 icule extraction achieved similar results as LASIK in terms of efficacy index (0.97+/-0.20 vs. 0.99+/

79 e randomized to receive femtosecond-assisted LASIK with a conventional 70-degree side cut made with t

80 lowly changing as femtosecond laser-assisted LASIK becomes more widely performed.

81 Femtosecond laser-assisted LASIK is now a waiverable procedure for US military pers

82 Before LASIK and at 1, 3, and 6 months and 1, 3, and 5 years af

83 he predominantly vertical orientation before LASIK.

84 number remains less than half of that before LASIK.

85 ot significantly different from those before LASIK.

86 ed to characterize the relationships between LASIK procedure room temperature and humidity and postop

87 ound myopic astigmatism undergoing bilateral LASIK between October 2015 and February 2017 underwent w

88 Both LASIK and PRK caused an increase in dry eye symptoms and

89 Both LASIK and SMILE substantially decreased the corneal biom

90 Z(4)(0) was not induced by LASIK with the treatment algorithm but was negatively in

91 Combining LASIK and PRK data, the loss of 2 or more lines of CDVA

92 Contemporary LASIK and PRK are safe procedures with a low incidence o

93 Xtra showed no advantages over conventional LASIK.

94 lasers are efficacious devices for creating LASIK flaps, with accompanying good visual results.

95 than mechanical microkeratomes for creating LASIK flaps.

96 Compared with contact lens wear, current LASIK technology improved ease of night driving, did not

97 opulation, an increase of 1 degrees C during LASIK was associated with a 0.003 diopter (D) more hyper

98 ocedure room temperature nor humidity during LASIK were found to have a clinically significant relati

99 and ambient temperature and humidity during LASIK were recorded.

100 Cataract extraction, LASIK, PRK, PTK, and various combination procedures have

101 Twenty post-hyperopic femto-LASIK eyes received aberration-free IOLs.

102 Femtosecond LASIK flaps are classically related to complications der

103 Femtosecond LASIK flaps represent significant improvement in morphol

104 Femtosecond-LASIK flaps were thicker in the IL group in comparison t

105 Thin flap LASIK, also referred to as sub-Bowman's keratomileusis,

106 eons to explore the possibility of thin flap LASIK.

107 fect on functioning and well-being following LASIK based on patient and expert input.

108 series, the incidence of diplopia following LASIK has not been reported.

109 HOAs were still increased following LASIK by a factor of 1.23 but not PRK.

110 The total number of AE was 850 for LASIK (occurring in 783 eyes of 657 patients; incidence

111 l anesthesia for cataract extraction and for LASIK procedures, the leading cause of diplopia is decom

112 or while being evaluated as a candidate for LASIK.

113 atories, Inc, Fort Worth, TX) in the eye for LASIK.

114 l stroma creating precise lamellar flaps for LASIK.

115 myopia, which otherwise may not qualify for LASIK.

116 (61,833 eyes) were included in the study for LASIK and 5,016 (9,467 eyes) for PRK.

117 o +2.50 diopters (D), with eyes suitable for LASIK surgery.

118 change in the corneal refractive power from LASIK and was considered the reference measurement.

119 r surgeries, SMILE was superior to either FS-LASIK or LASIK, while comparable to FLEX or PRK/LASEK gr

120 nd laser-assisted in situ keratomileusis (FS-LASIK) was 0.41 (95% CI, 0.00 to 0.81; p = 0.049; I(2) =

121 is ST (CST) after SMILE was comparable to FS-LASIK/LASIK with the pooled Hedges' g = - 0.05 (95% CI,

122 timized and high-resolution wavefront-guided LASIK achieve excellent visual outcomes.

123 patients were treated with wavefront-guided LASIK and PRK.

124 t was randomized to undergo wavefront-guided LASIK by the AMO Visx CustomVue S4 IR excimer laser syst

125 819 (45%) wore contacts at baseline and had LASIK, and 287 (16%) wore glasses at baseline and had LA

126 d 287 (16%) wore glasses at baseline and had LASIK.

127 up A included 34 patients (68 eyes) that had LASIK with the application of 0.02% MMC for 10 s on the

128 up B included 34 patients (68 eyes) that had LASIK without MMC application.

129 nts 40 years of age or younger when they had LASIK were somewhat more likely to be strongly satisfied

130 r primitive stromal interface scars of human LASIK corneas and from similar regions of normal control

131 yopic PRK, 25% of the change after hyperopic LASIK, and 16% of the change after hyperopic PRK.

132 elated with preoperative MSE after hyperopic LASIK, and not related to preoperative MSE after hyperop

133 Aspheric hyperopic LASIK can increase the depth of focus without impairing

134 Bilateral hyperopic LASIK surgery using a 200-Hz Allegretto excimer laser.

135 raoperative MMC application during hyperopic LASIK achieves better predictability and efficacy and in

136 tomycin-C (MMC) application during hyperopic LASIK correction (+ 1.00 D to + 6.00 D) by examining top

137 Ls in eyes with previous myopic or hyperopic LASIK can result in good refractive results.

138 Post-hyperopic LASIK eyes showed significantly better DCNVA; higher neg

139 atch corneal SA in eyes with prior hyperopic LASIK or PRK.

140 with previous myopic LASIK or PRK, hyperopic LASIK or PRK, and RK, 0% to 85%, 38.1% to 71.9%, and 29%

141 yes of 17 patients which underwent hyperopic LASIK using a 213 nm solid-state laser (Pulzar Z1, Custo

142 eyes, 102 myopic-PRK eyes, and 106 hyperopic-LASIK/PRK eyes, anterior corneal higher-order aberration

143 s, 61 myopic-LASIK/PRK eyes, and 9 hyperopic-LASIK/PRK eyes.

144 of focus values in myopic-PRK and hyperopic-LASIK/PRK corneas were significantly greater than those

145 mm pupil, depth of focus values in hyperopic-LASIK/PRK corneas were greater than those in normal and

146 ma and fourth-order astigmatism in hyperopic-LASIK/PRK corneas.

147 , especially in corneas with prior hyperopic-LASIK/PRK.

148 the opposite relationship in some hyperopic-LASIK/PRK eyes having the highest anterior surface curva

149 gMAR preoperative to -0.02 +/- 0.15logMAR in LASIK Xtra eyes and from 1.27 +/- 0.12 logMAR to 0.01 +/

150 iorly and posteriorly to the lamellar cut in LASIK.

151 nge in MRSE of -0.15 D compared to -0.1 D in LASIK Xtra eyes.

152 he profiles of KS and CS/DS disaccharides in LASIK interface scars are significantly different from t

153 ion of nonsulfated (NSD) KS disaccharides in LASIK interface scars compared with normal controls.

154 y advantages of a customized corneal flap in LASIK, as well as to review the biomechanics that suppor

155 der to provide the appropriate management in LASIK-associated infectious keratitis.

156 Both subbasal and stromal corneal nerves in LASIK flaps recover slowly and do not return to preopera

157 neal sensitivity was better in SMILE than in LASIK eyes 1 month postoperatively (3.5+/-1.79 vs. 2.45+

158 s from laser-assisted in situ keratomileuis (LASIK).

159 Laser-assisted in situ keratomileus (LASIK) creates a permanent flap that remains non-attache

160 Laser in-situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) can otherwi

161 advantages of laser in-situ keratomileusis (LASIK) and photorefractive keratectomy (PRK).

162 tomy (PRK) and laser in-situ keratomileusis (LASIK) are also used to treat myopia, hyperopia and asti

163 ) measures for laser in situ keratomileusis (LASIK) are needed.

164 Although laser in situ keratomileusis (LASIK) enjoys a high success rate, postoperative residua

165 asty, laser-assisted in-situ keratomileusis (LASIK) flap or interface complications, post-radial kera

166 d the laser-assisted in-situ keratomileusis (LASIK) flap.

167 m studies with laser in-situ keratomileusis (LASIK) have continued to show good safety and efficacy.

168 ront-optimized laser in situ keratomileusis (LASIK) in eyes with low myopia and compound myopic astig

169 cond flaps for laser in-situ keratomileusis (LASIK) in terms of accuracy and complications.

170 d treatment of laser in-situ keratomileusis (LASIK) infections.

171 uided Laser-assisted in situ keratomileusis (LASIK) is a widespread and effective surgical treatment

172 e corneal flap laser in-situ keratomileusis (LASIK) is among the most important determinants in the s

173 who underwent laser in situ keratomileusis (LASIK) or photorefractive keratectomy (PRK) between Janu

174 who underwent laser in situ keratomileusis (LASIK) or photorefractive keratectomy (PRK) between July

175 luate laser-assisted in situ keratomileusis (LASIK) outcomes, subjective quality of vision (QoV) and

176 and following laser in situ keratomileusis (LASIK) surgery.

177 ds in resident laser in-situ keratomileusis (LASIK) training in the USA.

178 y of hyperopic laser in situ keratomileusis (LASIK) using a 213 nm wavelength solid-state laser.

179 with laser assisted in situ keratomileusis (LASIK) with residual error of refraction.

180 safety versus laser in situ keratomileusis (LASIK), it does not achieve the same visual results duri

181 including PRK, laser in-situ keratomileusis (LASIK), thermal keratoplasty, and orthokeratology.

182 econd laser-assisted in-situ keratomileusis (LASIK).

183 have undergone laser in situ keratomileusis (LASIK).

184 after laser-assisted in situ keratomileusis (LASIK).

185 eratectomy and laser in-situ keratomileusis (LASIK).

186 s occurs after laser in-situ keratomileusis (LASIK).

187 ct surgery and laser in-situ keratomileusis (LASIK).

188 rneal flaps in laser in situ keratomileusis (LASIK).

189 after laser-assisted in situ keratomileusis (LASIK).

190 ssociated with laser in-situ keratomileusis (LASIK).

191 ) and laser assisted in situ keratomileusis (LASIK).

192 ive correction, the creation of the lamellar LASIK flap decreased measured IOP by 0.94 mmHg.

193 Like LASIK, on the one hand, it employs a "flap" and conseque

194 However, based on the published literature, LASIK may be a viable option for some glaucoma patients.

195 After 12 months, LASIK eyes had achieved visual acuity of 20/12.5 or bett

196 Very high myopia LASIK between - 10.00 to - 13.50 D is safe and results i

197 o explain 42% of the IOP change after myopic LASIK, 34% of the change after myopic PRK, 25% of the ch

198 ched patients scheduled for bilateral myopic LASIK were enrolled and followed for 6 months after the

199 herical aberration induced in eyes by myopic LASIK or PRK or by RK.

200 der correction when combined with low myopic LASIK.

201 In eyes with previous myopic LASIK or PRK, hyperopic LASIK or PRK, and RK, 0% to 85%,

202 ntral 4-mm zone in 94 normal eyes, 61 myopic-LASIK/PRK eyes, and 9 hyperopic-LASIK/PRK eyes.

203 ded to be less than GEP in normal and myopic-LASIK/PRK eyes, with the opposite relationship in some h

204 , 87% (32/37) of PRK eyes and 81% (30/37) of LASIK eyes had UDVA of 20/20 or better (P = .75).

205 At 3 months, 99% of SMILE eyes and 97% of LASIK eyes achieved SE within +/-1.0 D of attempted corr

206 ctopic epithelia are a known complication of LASIK and LASIK-like procedures.

207 al symptom scales to evaluate the effects of LASIK surgery in future studies.

208 The safety of LASIK and the implications of LASIK on glaucoma diagnostic testing are reviewed.

209 The safety of LASIK and the implications of LASIK on glaucoma diagnost

210 The safety of LASIK in patients with glaucoma has not been proved.

211 nue to support the use of LASEK over that of LASIK in the correction of refractive error.

212 Percent tissue altered at the time of LASIK was significantly associated with the development

213 discuss the topics relevant to the topic of LASIK in glaucoma patients or suspects.

214 m remains the model for initial treatment of LASIK-associated infectious keratitis.

215 of the toric intraocular lens and the use of LASIK in such aforementioned patients, these indications

216 re room temperature or humidity was found on LASIK refractive outcomes.

217 the fellow eye received wavefront-optimized LASIK by the Alcon Allegretto Wave Eye-Q 400 Hz excimer

218 Wavefront-guided and WF-optimized LASIK using the Alcon WaveLight Allegretto Eye-Q 400-Hz

219 domized to receive WF-guided or WF-optimized LASIK with the WaveLight Allegretto Eye-Q 400-Hz excimer

220 es, SMILE was superior to either FS-LASIK or LASIK, while comparable to FLEX or PRK/LASEK group based

221 (102 eyes) with a history of previous PRK or LASIK and cataract surgery.

222 orneal nerves, cut during transplantation or LASIK, never fully regenerate.

223 at 54% of respondents had resident-performed LASIK surgery with 9.1% of surveyed programs not offerin

224 us, pellucid marginal degeneration, and post-LASIK ectasia, in addition to potentially decreasing or

225 n the treatment of both keratoconus and post-LASIK ectasia.

226 CM was significantly greater post-LASIK relative to pre-LASIK (P < 0.05).

227 er multifocal and accommodating IOLs in post-LASIK eyes, the effect of IOL asphericity on visual qual

228 hown promising results for keratoconus, post-LASIK ectasia, and pellucid marginal degeneration.

229 ssive postlaser in-situ keratomileusis (post-LASIK) keratectasia.

230 ap creation technique, pre- and 1-month post-LASIK manifest refraction, and ambient temperature and h

231 Many recent studies of post-LASIK infectious keratitis show the predominance of atyp

232 sia in both keratoconus and progressive post-LASIK keratectasia by means of corneal stiffening.

233 progressive keratoconus and progressive post-LASIK keratectasia.

234 urements were statistically significant post-LASIK compared to preoperation (P < 0.05).

235 ve corneal elevation measurements taken post-LASIK.

236 between the clinically measured pre- to post-LASIK change in MRx and both Scheimpflug photography (P

237 tear syndrome may lead to less postoperative LASIK complications.

238 3 years the numbers remained <60% of the pre-LASIK numbers (P <0.001).

239 ificantly greater post-LASIK relative to pre-LASIK (P < 0.05).

240 Patients who have undergone previous LASIK or who have radial keratotomy and ocular pathologi

241 IOL power calculations in eyes with previous LASIK, excimer laser photorefractive keratectomy (PRK),

242 for residual refractive error after primary LASIK.

243 er estimation in challenging eyes with prior LASIK/photorefractive keratectomy was most accurately pr

244 Both eyes of 21 patients received LASIK for myopia or myopic astigmatism.

245 While apparently safe, LASIK Xtra showed no advantages over conventional LASIK.

246 PRK caused greater vision fluctuations than LASIK.

247 hniques offer a higher degree of safety than LASIK, they are associated with more pain and a slower v

248 e ever mindful of the important effects that LASIK may have on diagnostic testing.

249 The LASIK flaps with an inverted side cut are associated wit

250 The LASIK surgery and the postoperative care were performed

251 s were treated with an excimer laser and the LASIK technique between 2000 and 2010.

252 S) (Deltadi-6S) CS/DS disaccharides from the LASIK interface scar was significantly higher than norma

253 4-GlcNAc(6S) (DSD) KS disaccharides from the LASIK interface scars were significantly lower than in n

254 up and did not significantly increase in the LASIK group (mean +/- SD -0.16 +/- 0.17 mum to -0.17 +/-

255 s (D) in the PRK and -0.16 +/- 0.34 D in the LASIK group (P = .222).

256 mum to 0.496 +/- 0.17 mum (P = .013) in the LASIK group at 1 year.

257 , which remained significantly higher in the LASIK group than in the SMILE group 6 months after surge

258 In the LASIK group, there were 287 SAEs (271 eyes of 226 patien

259 cal properties with greater reduction in the LASIK group.

260 In the stromal bed (posterior to the LASIK flap interface), there were no significant changes

261 higher in the SMILE group compared with the LASIK group 1 and 6 months after surgery.

262 At 12 months, SMILE was similar to LASIK in terms of efficacy (85% vs. 83% UDVA >=20/20; P

263 elow, LASEK may also prove to be superior to LASIK in customized ablations.

264 r aberrations in comparison with traditional LASIK.

265 m 88 consecutive patients with uncomplicated LASIK and at least 3 years of postoperative follow-up.

266 oreign body sensation in patients undergoing LASIK and photorefractive keratectomy (PRK).

267 Consecutive patients undergoing LASIK at the Duke Eye Center who consented to participat

268 observational studies of patients undergoing LASIK surgery for myopia, hyperopia, or astigmatism.

269 total of 70 eyes from 37 subjects undergoing LASIK were measured preoperatively.

270 postoperative month 1 than those undergoing LASIK.

271 een corneas of 11 patients who had undergone LASIK to correct myopia from -2.0 D to -11.0 D were exam

272 ere studied of 11 patients who had undergone LASIK to correct myopia from -2.0 D to -11.0 D.

273 questionnaire to patients who have undergone LASIK surgery is a new approach to assess symptoms and s

274 opic, given the millions that have undergone LASIK.

275 s) in patients who have previously undergone LASIK.

276 All cases underwent LASIK surgery using the sixth-generation excimer laser A

277 nging between - 10.00 to - 13.50 D underwent LASIK with the WaveLight(R) Allegretto Wave(R) Eye-Q 400

278 Forty myopic eyes underwent LASIK using an excimer laser with refraction ranging fro

279 Participants underwent LASIK surgery for myopia, hyperopia, and/or astigmatism.

280 he second group included eyes that underwent LASIK procedure using the EX500 Allegretto excimer laser

281 Twenty eyes of 10 patients who underwent LASIK for myopia were examined clinically and by real-ti

282 Patients who underwent LASIK had a 0.94 mmHg (95% confidence interval [CI], 0.8

283 sted of 24 eyes of 24 patients who underwent LASIK.

284 rneal examinations that underwent uneventful LASIK with at least 1 year follow-up.

285 0.00 to 0.81; p = 0.049; I(2) = 78%), versus LASIK was 1.31 (95% CI, 0.54 to 2.08; p < 0.001; I(2) =

286 Compared with continued contact lens wear, LASIK significantly reduced the self-reported rates of e

287 WFG LASIK had higher levels of supervision and better contra

288 O) LASIK in 1 eye and wavefront-guided (WFG) LASIK in the fellow eye.

289 ary 2017 underwent wavefront-optimized (WFO) LASIK in 1 eye and wavefront-guided (WFG) LASIK in the f

290 improve clinical outcomes of those for whom LASIK-based techniques are not an option.

291 urface and corneal innervation compared with LASIK, further reducing the incidence of dry eye disease

292 The Patient-Reported Outcomes With LASIK (PROWL) studies were prospective observational stu

293 urgery in the Patient-Reported Outcomes With LASIK (PROWL) studies.

294 ual acuities and complications reported with LASIK flaps created using femtosecond lasers are within

295 isfaction with vision, and satisfaction with LASIK surgery in the Patient-Reported Outcomes With LASI

296 isfaction with vision, and satisfaction with LASIK surgery.

297 glasses wearers were strongly satisfied with LASIK at year 3.

298 vefront combined with LASEK rather than with LASIK may offer the best refractive outcome.

299 One eye was treated with LASIK and the fellow eye was treated with PRK.

300 tigmatism received randomized treatment with LASIK Xtra (30 mW/cm(2), 90 seconds with continuous ultr