低度数或负度数折叠式人工晶状体植入术治疗白内障合并高度近视的临床观察

目的观察白内障摘除联合低度数或负度数丙烯酸酯(Acrysof)折叠式人工晶状体植入术治疗白内障合并高度近视的临床疗效.方法对40例(56只眼)白内障合并高度近视患者行超声乳化白内障吸除低度数或负度数Acrysof折叠式人工晶状体植入术,观察术中和术后并发症、术后视力和屈光度数.术后随访时间≥3个月.结果术中无并发症发生.术后3个月最佳矫正视力＜0.1者2只眼,0.1～0.4者12只眼,0.5～0.9者36只眼,1.0～1.5者6只眼;4只眼(7.2%)晶状体后囊膜混浊,1只眼(1.8%)发生晶状体囊袋阻滞综合征,无视网膜脱离者.结论超声乳化白内障吸除低度数或负度数Acrysof折叠式人工晶状体植入术,是治疗白内障合并高度近视患者安全、有效的手术方法.     

高度近视白内障超声乳化人工晶状体植入术27例

目的:探讨高度近视眼合并白内障行超声乳化白内障吸除人工晶状体植入术治疗的临床疗效。方法:27例(37眼)因白内障合并高度近视行超声乳化白内障吸除+人工晶状体植入术。记录术前眼轴长度和术后视力,屈光度数,观察手术并发症术后眼部情况。术后随访时间为6～24mo。结果:术前平均眼轴长度为28.3mm。术后最佳矫正视力≥0.2共35眼(95%),≥0.5者共33眼(89%)。术中无后囊膜破裂;术后角膜水肿2眼,术后一过性高眼压1眼,后发性白内障2眼;术后发现黄斑变性和眼底出血共4例,无视网膜和脉络膜脱离者。结论:超声乳化白内障吸除低度数折叠式人工晶状体植入术是治疗白内障合并高度近视眼安全、有效的方法。     

负度数折叠式人工晶状体植入术治疗白内障合并轴性高度近视

目的:探讨超声乳化白内障吸除联合负度数人工晶状体植入术治疗白内障合并高度近视的临床疗效。方法:对30例41眼白内障合并高度近视患者行超声乳化白内障吸除联合负度数折叠式人工晶状体植入术,随访6mo,观察术中和术后并发症、术后视力、眼底情况。结果:术前平均眼轴长度为32.11mm。术后视力<0.1者3眼,0.1～0.5者26眼,>0.5者12眼。术中2眼晶状体后囊膜破裂;1眼角膜水肿,未见视网膜脱离。24眼眼底有明显的高度近视眼底病变。结论:超声乳化白内障吸除联合负度数人工晶状体植入术是治疗白内障合并高度近视眼安全、有效的方法。     

高度近视白内障超声乳化摘出人工晶状体植入术

目的评价高度近视眼白内障超声乳化摘出术及人工晶状体植入术的疗效.方法对眼轴＞26mm(平均27.46mm)的94例(104眼)高度近视合并白内障患者行超声乳化摘出及人工晶状体植入术.结果术后1月裸眼或矫正视力≥0.5者84眼(80.76%),视力≥1.0者34眼(32.69%).结论高度近视白内障超声乳化及人工晶状体植入术具有术后视力恢复快屈光状态稳定等优点,但眼轴＞30mm以上者视力差.     

超声乳化联合低度数人工晶状体植入术治疗超高度近视白内障

目的:探讨白内障合并超高度近视眼行超声乳化吸除联合低度数人工晶状体植入术的临床疗效。方法:表麻下对30例37眼超高度近视合并白内障患者行超声乳化白内障吸除联合低度数人工晶状体植入术。术后观察患者最佳矫正视力、屈光度数和手术并发症。随访6～12mo。结果:术后最佳矫正视力≥0.3者共22眼(59%),≥0.5者共12眼(32%)。术后屈光度数偏差值<±0.50D共23眼(62%);±0.50D<术后屈光度数偏差值<±1.00D共12眼(32%),±1.00D<术后屈光度数偏差值<±2.00D共2眼(6%)。术中仅2眼晶状体后囊膜破裂,术后1眼出现双眼干扰症状,后囊混浊2眼。8例患者术后第1d角膜轻度水肿,在3～5d内自行消退。无视网膜和脉络膜脱离者,无眼压升高者。结论:超声乳化联合低度数人工晶状体植入术治疗超高度近视白内障患者,能有效改善患者的视力。     

同轴1.8mm微切口超声乳化术在超高度近视白内障的应用

目的：观察同轴1.8mm微切口超声乳化术联合负度数人工晶状体植入在治疗白内障合并超高度近视的临床疗效。 方法：选取我院因白内障合并超高度近视行超声乳化吸除术和负度数人工晶状体植入的患者71例98眼进行回顾性研究,记录术前眼轴长度、术前视力、术前最佳矫正视力（BCVA）。观察手术并发症和术后眼部情况。术后随访3～6mo,并记录术后裸眼视力（UCVA）,最佳矫正视力。 结果：术前平均眼轴长度为29.33±1.95mm。术前裸眼视力均<0.05。术后裸眼视力≥0.3共60眼(61％);最佳矫正视力≥0.5为48眼(49%);术中1眼出现晶状体后囊膜破裂;术后20例患者出现双眼干扰症状;后发性白内障6眼,5眼行激光晶状体后囊膜切开术;无视网膜和脉络膜脱离者,术后无眼压升高者。 结论：同轴1.8mm微切口超声乳化吸除术联合负度数人工晶状体植入术是治疗白内障合并超高度近视安全、有效的方法     

高度近视白内障人工晶状体植入术的临床观察

目的　观察超声晶状体乳化吸出联合折叠式人工晶状体植入术治疗白内障合并高度近视的临床效果。方法　对70例 (12 5眼 )白内障合并高度近视行超声乳化吸出低度数或负度数丙烯酸酯折叠式人工晶状体植入术 ,观察术中术后并发症、术后视力和屈光状态。术后随访时间≥ 3月。结果　术中和术后并发症有后囊破裂 3眼 ,角膜水肿 12眼。术后 3月最佳矫正视力 <0 1者 4眼 ,0 1～ 0 4者 2 5眼 ,0 5～ 0 9者 86眼 ,1 0～ 1 5者 10眼。 4眼 (3 2 % )晶状体后囊浑浊 ,无视网膜脱离者。结论　超声乳化吸出低度数或负度数丙烯酸酯折叠式人工晶状体植入术治疗白内障合并高度近视 ,是安全有效的。     

高度近视白内障晶状体超声乳化人工晶状体植入术的临床观察

目的 观察晶状体超声乳化吸出联合折叠式人工晶状体植入术治疗白内障合并高度近视的临床效果.方法 对27例(47眼)白内障合并高度近视行晶状体超声乳化吸出,低度数丙烯酸酯折叠式人工晶状体植入术,观察术中、术后并发症,术后视力及屈光状态,术后随访>6月.结果 术中有后囊破裂1眼(2.13%),角膜水肿7眼(14.89%),葡萄膜炎症1眼(2.13%).术后1月-3月矫正视力<0.1者1眼(2.13%),0.1-0.4者12眼(25.53%),0.5-0.8者30眼(63.83%),1.0-1.5者4眼(8.51%).晶状体后囊浑浊6眼(12.77%).观察2年无视网膜脱离者.结论 晶状体超声.乳化吸出,低度数丙烯酸酯折叠式人工晶状体植入治疗白内障合并高度近视安全并且效果良好.     

高度近视白内障小切口非超声乳化人工晶状体植入术

目的　评价高度近视白内障小切口非超声乳化白内障摘出联合人工晶状体植入术的效果。方法　眼轴 >2 6 mm的高度近视合并白内障 88例 (91只眼 )。其中核性白内障 4 9只眼 ,后囊下白内障 32只眼 ,皮质性白内障 10只眼。施行小切口非超声乳化白内障摘出联合人工晶状体植入术。结果　术后 1月裸眼视力≥ 0 .5者 4 6只眼(5 0 .5 5 % ) ,矫正视力≥ 0 .5者 5 8只眼 (6 3.74 % )。术后散光轻 ,伤口愈合快 ,视力提高快 ,并发症少。结论　小切口非超声乳化白内障摘出联合人工晶状体植入术是高度近视合并白内障较理想的手术方式。     

屈光度大于-12.00D透明晶状体超声乳化术的临床研究

目的:探讨屈光度大于-12.00D透明晶状体超声乳化吸除联合人工晶状体植入术治疗高度近视的有效性和安全性。方法:对78例(100眼)高度近视患者行巩膜隧道切口超声乳化透明晶状体吸除联合人工晶状体植入术。平均年龄39.2岁,术前矫正视力0.12～0.6,平均近视度数(-14.41±4.33)D。结果:术后所有患者裸眼视力均有提高;82眼(82.0%)裸眼视力≥0.5;96眼(96.0%)矫正视力≥0.5。术后屈光度数为-0.60～-3.48D,平均散光度数(0.58±0.92)D。术后平均随访时间19.5mo。术后发生晶状体后囊膜混浊14眼(14.0%),未见视网膜裂孔、视网膜脱离及黄斑囊样水肿。结论:超声乳化吸除屈光度大于-12.00D透明晶状体联合人工晶状体植入术,术后视力好、并发症少,是矫治高度近视安全、有效的方法,但是手术者及患者的选择应当是有条件的。     

Functional vision after cataract removal with multifocal and accommodating intraocular lens implantation: prospective comparative evaluation of Array multifocal and 1CU accommodating lenses

PURPOSE: To compare the efficacy (functional vision, spectacle dependence) of the Array multifocal intraocular lens (IOL) (Advanced Medical Optics) and the 1CU accommodating IOL (HumanOptics AG). SETTING: Hartswood Hospital, Brentwood, United Kingdom. METHODS: This prospective study comprised patients scheduled to have standard phacoemulsification surgery with IOL implantation. Patients expressing a preference for spectacle independence were allocated to the Array multifocal IOL group. Those expressing no preference received the 1CU accommodating IOL. Efficacy measures included distance and near uncorrected visual acuity (UCVA), dynamic retinoscopy, and patient-reported spectacle independence. RESULTS: Seventeen patients (34 eyes) had bilateral implantation of the Array multifocal IOL, and 5 patients (9 eyes) had implantation of the 1CU accommodating IOL. Six to 18 months after surgery, 82.4% of eyes in the multifocal IOL group and 77.8% in the accommodating IOL group achieved a distance UCVA of 20/20 (Snellen) or better; the difference between groups was not significant. However, a significantly greater proportion in the multifocal IOL group than in the accommodating IOL group (76.5% versus 44.4%) achieved a near UCVA of N5 (Snellen 20/40) or better (P=.0068). Sixteen patients (94.1%) with Array IOLs and 2 patients (50.0%) with 1CU IOLs reported spectacle independence. Dynamic retinoscopy showed that the mean accommodative effect in the 1CU group was 0.44 diopter. CONCLUSIONS: In this single-surgeon single-site study, a greater proportion of Array multifocal IOL recipients than 1CU IOL recipients achieved functional near visual acuity. Only 1 patient with an Array IOL required corrective spectacles at the last visit.     

Refractive outcomes after bilateral multifocal intraocular lens implantation

PURPOSE: To evaluate the efficacy and safety of bilateral multifocal intraocular lens (IOL) implantation after cataract surgery. SETTING: Oftalmológico de Valencia-CEOVAL, Valencia, Venezuela. METHODS: This retrospective study evaluated patient charts for the patient selection method, preoperative evaluation, surgical technique, postoperative visual and refractive outcomes, and complications. It included 70 eyes of 35 patients who had lens extraction with bilateral implantation of an Array multifocal IOL. Fourteen eyes of 7 patients had hyperopia with presbyopia, and 56 eyes of 28 patients had cataract. RESULTS: All eyes achieved an uncorrected distance acuity of 20/40 or better and an uncorrected near acuity of J5 or better. Six patients (18%) reported moderate halos, and 22 patients (63%) occasionally wore glasses. CONCLUSION: Bilateral multifocal IOL implantation was effective and safe in cataract and hyperopic patients with presbyopia, providing good uncorrected distance and near acuities.     

Outcomes of sulcus implantation of Array multifocal intraocular lenses in second-eye cataract surgery complicated by vitreous loss

PURPOSE: To evaluate the outcomes of implantation of the Array((R)) multifocal intraocular lens (IOL) (model SA-40N, AMO) in the ciliary sulcus in second-eye cataract surgery complicated by vitreous loss. SETTING: Department of Ophthalmology, Arrowe Park Hospital, Wirral, United Kingdom. METHODS: This retrospective study comprised 15 patients who had complicated second-eye cataract surgery with loss of posterior capsule support leading to sulcus implantation of an Array multifocal IOL. The patients were recalled for assessment. Objective evaluation included uncorrected and corrected distance and near visual acuities, complications, and IOL centration. Subjective assessment was performed using a questionnaire that included the VF-14 index of visual function; the questions were related to satisfaction with vision, limitations from halos and glare, and the frequency of spectacle wear. RESULTS: Fourteen eyes (93%) had postoperative visual improvement. The best corrected distance acuity was 6/12 or better in 11 eyes (73%). The best corrected near acuity was J2 or better in 12 eyes (80%). The IOL was well centered in 11 eyes (73%) and slightly decentered in 4 eyes (27%). Subjectively, patients indicated a high level of satisfaction with their distance and near vision. The VF-14 indicated high levels of visual function, with 73% of patients having a score higher than 90 (out of 100). Seventy-three percent of patients were not troubled by glare or halos, and 40% did not wear spectacles. CONCLUSION: Implantation of the Array multifocal IOL in the sulcus during complicated phacoemulsification led to good visual outcomes based on objective and subjective patient measures.     

Comparison of higher order aberrations and contrast sensitivity after LASIK, Verisyse phakic IOL, and Array multifocal IOL

PURPOSE: To evaluate higher order aberrations and contrast sensitivity after LASIK, implantation of the Verisyse phakic intraocular lens (IOL), and refractive lens exchange with the Array multifocal IOL. METHODS: In a prospective, non-randomized case series, LASIK was performed in 20 eyes with the Technolas 217z excimer laser (Bausch & Lomb, Rochester, NY), a Verisyse phakic IOL (AMO Inc, Santa Ana, Calif) was implanted in 11 eyes, and refractive lens exchange with implantation of a multifocal IOL (Array IOL, AMO Inc) was performed in 12 eyes. Wavefront error (Zywave aberrometer; Bausch & Lomb) at two pupil sizes (4 and 6 mm) and photopic contrast sensitivity (CVS-1000) was measured preoperatively and 2 months postoperatively in all eyes. RESULTS: Photopic contrast sensitivity remained unchanged in the LASIK and the Verisyse groups, and decrease was significant in the Array group at three cycles per degree only. Higher order aberrations with a 4-mm pupil were increased in the Array group only. With a 6-mm pupil, they were increased in all groups. Comparing groups, surgically induced higher order aberrations were highest after refractive lens exchange with the Array multifocal IOL and lowest after implantation of the Verisyse IOL. CONCLUSIONS: Laser in situ keratomileusis, the Verisyse IOL, and the Array IOL increase higher order aberrations at large pupil sizes, but no increase occurs at small pupil sizes with LASIK or the Verisyse IOL. Contrast sensitivity in photopic conditions is normal with LASIK and the Verisyse IOL, but slightly reduced with the Array IOL due to the multifocal optic.     

Visual function and complications after cataract surgery with bilateral multifocal intraocular lens implantation

PURPOSE: To evaluate the visual function and complications after cataract surgery with bilateral Array SA 40N multifocal intraocular lens (IOL) implantation. MATERIAL AND METHODS: This prospective study comprised 40 eyes of selected 20 patients undergoing cataract surgery with bilateral implantation of Array SA 40N (AMO). multifocal IOL. Three months after bilateral surgery distance and near visual acuity, contrast sensitivity, complications and adverse effects were evaluated. Patients' satisfaction was assessed using a subjective TyPE Questionnaire. RESULTS: Thirty-five eyes (35/40 - 87.5%) achieved the uncorrected distance visual acuity 20/40 and the uncorrected near visual acuity of J5 or better. Eighty-two and a half percent of the operated eyes achieved UCDVA 20/20 and J4 or better. Contrast sensitivity for distance and near measured binocularly were within normal limits, although for higher spatial frequency, contrast sensitivity values for near were slightly above the lower limit of normal range. Intraoperative and postoperative complications were few and only in one eye, further surgical intervention was necessary (IOL recentration). Three patients (3/20 - 15%) reported moderate glare and halo. Overall visual satisfaction measured with TyPE Questionnaire was very high (8.7/10). CONCLUSIONS: Bilateral multifocal IOL implantation was effective and safe in selected cataract patients, providing very good uncorrected distance and near visual acuity. Slightly reduced contrast sensitivity and increased perception of glare/halo were an acceptable compromise for near, as well as distance vision improvement.     

Refractive lens exchange with an array multifocal intraocular lens

PURPOSE: To prospectively evaluate safety, efficacy, predictability, stability, complications, and patient satisfaction after refractive lens exchange (clear lens extraction) followed by posterior chamber implantation of a multifocal intraocular lens (IOL). METHODS: Fifty eyes of 25 patients (mean age 51 years, range 44 to 62 years) with preoperative spherical equivalent refraction between -15.50 and +5.75 D and cylinder between 0 and 1.50 D underwent bilateral implantation of a zonal progressive multifocal IOL (Array, AMO). RESULTS: Eyes were divided into group A (n=24; myopia, average preoperative spherical equivalent refraction -7.11 +/- 3.25 D (-1.75 to -15.50 D), and group B (n=26; hyperopia, average preoperative spherical equivalent refraction +3.04 +/- 1.04 D). Follow-up was 6 months in all eyes. Postoperatively, all eyes of both groups were within +/-1.00 D of target refraction. No eye in group A and three eyes in group B sustained a loss of one line of BSCVA. Forty-seven eyes (94%) remained unchanged or gained one or more lines of their preoperative BSCVA. In all eyes, postoperative UCVA was 20/40 or better. When compared to preoperative, uncorrected near visual acuity improved (statistically significant). All patients achieved uncorrected binocular visual acuity of 20/30 and J4 or better. Patient satisfaction was extremely high; no intra- or postoperative complications were reported. CONCLUSION: Six-month results of implantation of the AMO Array multifocal IOL for refractive lens exchange demonstrated safety, efficacy, and predictability in correcting high ametropia and significant improvement of uncorrected near and distance visual acuity.     

Functional outcomes after implantation of Tecnis ZM900 and Array SA40 multifocal intraocular lenses

PURPOSE: To evaluate the functional outcome after implantation of the Tecnis ZM900 multifocal intraocular lens (IOL) (AMO) and the Array SA40 multifocal IOL (AMO). SETTING: Department of Ophthalmology, Bundesknappschaft s Hospital, Sulzbach, and the Department of Ophthalmology, Marienhospital, Aachen, Germany. METHODS: In a prospective comparative 2-center trial, Tecnis ZM900 and the Array SA40 multifocal IOLs were bilaterally implanted in 50 patients (50 eyes Tecnis, 50 eyes Array) by 1 surgeon at each center. The following parameters were assessed 30 to 60 days and 120 to 180 days after surgery in both eyes: refraction, pupil size, uncorrected and best corrected visual acuities for distance and near at different contrast levels, and photopic and mesopic contrast sensitivity at different spatial frequencies. Patient satisfaction (spectacle independence, photic phenomena, overall satisfaction) was assessed by a questionnaire. RESULTS: The main differences between the 2 multifocal IOLs were the better uncorrected near visual acuity (P<.001), distance-corrected near visual acuity (P<.001), the mesopic contrast sensitivity at high spatial frequencies (P<.05) as well as greater independence from spectacles in patients with the Tecnis multifocal IOL, resulting in higher levels of patient satisfaction. CONCLUSION: The aspherical diffractive Tecnis multifocal IOL gave better outcomes than the Array multifocal IOL.     

Decentration, tilt, and near vision of the array multifocal intraocular lens

PURPOSE: To study the periodic changes in decentration, tilt, and near vision in eyes with the Array(R) multifocal intraocular lens (IOL). SETTING: Department of Ophthalmology, St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. METHOD: This study comprised 20 eyes of 10 patients older than 60 years who had binocular cataract and bilateral implantation of the Array multifocal IOL. Mean patient age was 66.0 years (range 60 to 75 years). After a clear corneal incision and continuous curvilinear capsulorhexis were made, each eye had phacoemulsification and in-the-bag IOL implantation. The amount of IOL decentration and degree of tilt were evaluated using the EAS-1000 anterior eye segment analysis system 1 day and 1 and 2 months postoperatively. Near and far visual acuities were measured at the same examinations. RESULTS: No statistically significant differences were observed in decentration (P =.13) or tilt (P =.32) throughout the follow-up. Mean uncorrected distance visual acuity was 0.68 +/- 0.27 (SD), and mean uncorrected near acuity was 0.49 +/- 0.15 2 months postoperatively. Uncorrected distance acuity better than 0.5 was achieved in 14 eyes (77.8%), in which the mean uncorrected distance acuity was 0.80 +/- 0.18 and the mean uncorrected near acuity was 0. 53 +/- 0.14 2 months postoperatively. CONCLUSIONS: Tilt and decentration of the Array multifocal IOL showed no significant progression up to 2 months after implantation. For near acuity, the Array IOL may be an effective aid.     

Quality of vision after AMO Array multifocal intraocular lens implantation

PURPOSE: To evaluate safety and efficacy of Array SA40N multifocal intraocular lens (IOL) (AMO) implantation in cataract surgery. SETTING: Helsinki University Eye Hospital, Helsinki, Finland. METHODS: In this prospective randomized comparative trial, 80 patients scheduled for cataract surgery were selected based on preoperative counseling and randomized to have multifocal or monofocal IOL implantation. Fifty-three eyes of 35 patients received a multifocal IOL and 67 eyes of 40 patients, a monofocal IOL. The incidence of complications and visual outcome in the multifocal and monofocal IOL groups were compared. Quality of vision was measured by comparing the severity of visual symptoms (glare, halos, and cataract symptoms score), changes in functional impairment measured by a 7-item visual function test (VF-7), changes in global measures of vision (trouble and satisfaction with vision), and range of accommodation and contrast sensitivity. RESULTS: Intraoperative and postoperative complications and adverse events were few and required no further surgical intervention. Both distance and near visual acuities were significantly better in the multifocal group than in the monofocal group; the difference was most prominent in distance corrected near acuity (P<.001). Thirty-five eyes (67.3%) in the multifocal group and 10 eyes (14.9%) in the monofocal group achieved a distance corrected near acuity of J6 (20/40) or better; 30 eyes (56.6%) and 19 eyes (28.4%), respectively, achieved a best corrected distance acuity of 20/20 or better. Glare symptoms decreased postoperatively in both groups but were slightly more common in the multifocal group. In contrast, halos were significantly more common at 1 month in the multifocal group (P<.001). Contrast sensitivity values were slightly lower with multifocal IOLs at almost all spatial frequencies, but the difference was not significant. The change in the quality of life postoperatively, measured with the VF-7, was significant and identical in both groups. CONCLUSIONS: Pseudophakic eyes with multifocal IOLs had better distance and near acuity and range of accommodation than eyes with a monofocal IOL. Slightly lower contrast sensitivity and increased perception of halos by subjects with the multifocal IOL appear to be an acceptable compromise to enhanced near and distance vision.     

Multifocal intraocular lens implantation in prepresbyopic patients with unilateral cataract

OBJECTIVE: To evaluate the benefits of implantation of a zonal-progressive multifocal intraocular lens (IOL) in prepresbyopic patients with unilateral cataract. STUDY DESIGN: Prospective, nonrandomized, comparative trial. PARTICIPANTS: Ninety-five eyes of 95 prepresbyopic patients aged between 14 and 40 years with either multifocal or monofocal IOL implantation at two institutions and with more than 6 months follow-up. INTERVENTIONS: Temporal clear corneal phacoemulsification and foldable IOL implantation was performed in all eyes. In 54 patients, a zonal-progressive optic multifocal IOL (Array SA40-N, Allergan, Irvine, CA) was implanted, whereas 41 patients received a monofocal IOL and served as controls. RESULTS: Preoperative patient demographics, mean postoperative spherical equivalent, astigmatism, and uncorrected and best-corrected distance visual acuities were similar in the two groups. Patients with a multifocal IOL achieved a significantly better uncorrected near visual acuity than patients with monofocal IOL (0.18 versus 0.37; P = 0.0001). With distance correction only, mean near visual acuity was 0.17 versus 0.43 (P = 0.0001). Best-corrected near visual acuity was 0.11 for both groups (P = 0.91), with +1.43 diopters (D) for the multifocal group and +2.35 D for the monofocal group (P = 0.0001). Spectacle dependency differed significantly between the two groups, with 21 patients (51%) of the monofocal group commonly requiring an additional plus add for near tasks compared with 5 patients (9%) in the multifocal group (P = 0.001). Stereopsis was superior in the multifocal group (P < 0.001), with 42 (77%) and 33 (61%) patients with a multifocal IOL responding positively to the Lang and Titmus tests, respectively. In the monofocal group; only 20 (48%) and 9 (22%) patients gave correct answers. CONCLUSIONS: Multifocal IOL implantation is a viable alternative to monofocal pseudophakia in prepresbyopic patients with unilateral cataract.