Abstract:
OBJECTIVE:To evaluate the accuracy of computerized videokeratography, keratometry, and the Gaussian optics formula for measuring corneal refractive power in patients after myopic laser in situ keratomileusis (LASIK). DESIGN:Noncomparative case series. PARTICIPANTS:One hundred eyes of 63 patients (mean age, 45.0 +/- 10.9 [standard deviation] years) who underwent LASIK were included in the study. METHODS:Using the clinical history method as the standard, we evaluated the accuracy of values of corneal refractive power derived from computerized videokeratography (the EffRP value of the EyeSys Corneal Analysis System, which averages corneal refractive power over the central 3 mm), keratometry (K), the Gaussian optics formula (GauRP), and values of EffRP and keratometry as modified according to the amount of LASIK-induced refractive change. MAIN OUTCOME MEASURES:Correlation of measured corneal power values to those obtained using clinical history method (HisRP). RESULTS:Although the values for HisRP were significantly correlated with postoperative EffRP and K values and with GauRP, postoperative EffRP and K values were higher than HisRP (0.87 +/- 0.68 diopters [D] and 1.16 +/- 1.10 D, respectively), and GauRP were lower than HisRP (0.44 +/- 0.66 D) (P < 0.001 for all three comparisons). The differences between HisRP and both postoperative EffRP and K values increased significantly with the amount of myopic correction. The most accurate results were obtained by modifying the postoperative values of EffRP according to the amount of LASIK-induced refractive change; 70% of these values were within +/- 0.5 D and 94% within +/- 1 D of HisRP values. CONCLUSIONS:Using the clinical history method as the standard, we found that the most accurate method for determining corneal refractive power in post-LASIK eyes was to adjust the postoperative corneal measurement according to the amount of LASIK-induced refractive change.
journal_name
Ophthalmologyjournal_title
Ophthalmologyauthors
Hamed AM,Wang L,Misra M,Koch DDdoi
10.1016/s0161-6420(01)01001-6subject
Has Abstractpub_date
2002-04-01 00:00:00pages
651-8issue
4eissn
0161-6420issn
1549-4713pii
S0161-6420(01)01001-6journal_volume
109pub_type
杂志文章相关文献
OPHTHALMOLOGY文献大全abstract::A 38-year-old male homosexual with the new Acquired Immunodeficiency Syndrome (AIDS) had biopsy proven Kaposi's sarcoma of the right palpebral conjunctiva, extraocular mucocutaneous areas, and lymph nodes. Histologically, the palpebral tumor was characterized by atypical spindle cell proliferation and multiple slit-li...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(83)80011-6
更新日期:1983-08-01 00:00:00
abstract:PURPOSE:To describe the clinical presentation and outcomes of Acanthamoeba keratitis (AK) in rigid gas permeable (RGP) contact lens wearers and to identify modifiable risk factors. DESIGN:Case-control investigation. PARTICIPANTS:Patients were RGP contact lens-wearing United States residents with a diagnosis of AK fro...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ophtha.2016.03.039
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVE:To report the prevalence of ocular complications of AIDS in the era of highly active antiretroviral therapy (HAART). DESIGN:Cohort study. PARTICIPANTS:Patients with AIDS, 13 years or older. METHODS:History, eye examination, and laboratory testing at enrollment. MAIN OUTCOME MEASURE:Frequency of ocular com...
journal_title:Ophthalmology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ophtha.2006.11.008
更新日期:2007-04-01 00:00:00
abstract:OBJECTIVE:To compare laser in situ keratomileusis (LASIK) with photorefractive keratectomy (PRK) in the correction of myopia from -2.00 to -5.50 diopters. DESIGN:Prospective, randomized, paired clinical trial. PARTICIPANTS:Fifty-two eyes of 26 myopic patients were enrolled in the study. INTERVENTION:Each patient rec...
journal_title:Ophthalmology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/S0161-6420(99)90084-2
更新日期:1999-02-01 00:00:00
abstract:OBJECTIVE:To report the fungal isolates, treatment strategies, and clinical outcomes for a large series of patients with exogenous fungal endophthalmitis. DESIGN:Retrospective, single institution, consecutive case series. PARTICIPANTS:All patients treated at Bascom Palmer Eye Institute between January 1, 1990, and Ju...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ophtha.2008.02.027
更新日期:2008-09-01 00:00:00
abstract:BACKGROUND:Malignant glaucoma (ciliary block glaucoma; aqueous misdirection glaucoma) is an incompletely understood, rare and serious complication of intraocular surgery. METHODS:A woman with pseudophakic malignant glaucoma underwent successful neodymium: YAG (Nd:YAG) laser photodisruption of the anterior hyaloid face...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(93)31479-x
更新日期:1993-09-01 00:00:00
abstract::Vitreous surgery techniques are useful in the management of selected retinal detachments with an otherwise poor prognosis. Vitrectomy methods can be used to remove intraocular opacities; cut vitreous sheets causing vitreo-retinal traction and separate epiretinal membranes covering or distorting the retina; provide a f...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(79)35485-9
更新日期:1979-04-01 00:00:00
abstract::Iris (eye) color was examined for its effect on eye disease in a population-based study of diabetic retinopathy in Wisconsin. Eye color was determined by comparing the iris in a red reflex photograph with standard photographs. In younger-onset diabetic persons (N = 996), macular edema was more prevalent in persons wit...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(87)80004-0
更新日期:1987-10-01 00:00:00
abstract:PURPOSE:To investigate the rate and risk factors of developing suprachoroidal hemorrhage (SCH) after pars plana vitrectomy (PPV) and the outcomes as a result. DESIGN:Retrospective, comparative consecutive series. PARTICIPANTS:A total of 5459 patients who underwent pars plana vitrectomies over 10 years in 3 surgical c...
journal_title:Ophthalmology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ophtha.2013.06.021
更新日期:2014-01-01 00:00:00
abstract::The authors reviewed the records of 302 eyes of 185 patients with diffuse diabetic macular edema with or without cystoid macular edema treated with modified grid laser photocoagulation between the years 1981 and 1990. Three years after initial grid treatment, visual acuity was improved in 14.5%, unchanged in 60.9%, an...
journal_title:Ophthalmology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0161-6420(91)32082-7
更新日期:1991-10-01 00:00:00
abstract:OBJECTIVE:To test an educational intervention promoting the purchase of spectacles among Chinese children. DESIGN:Randomized, controlled trial. PARTICIPANTS:Children in years 1 and 2 of all 20 junior and senior high schools (ages 12-17 years) in 3 rural townships in Guangdong, China. METHODS:Children underwent visua...
journal_title:Ophthalmology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.ophtha.2011.06.016
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVE:To assess the incidence or progression of macular edema (ME) after cataract surgery in diabetic patients using optical coherence tomography (OCT) and correlating this with degree of diabetic retinopathy or other risk factors. DESIGN:Prospective cohort study. PARTICIPANTS:Fifty diabetic eyes undergoing catar...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ophtha.2006.08.053
更新日期:2007-05-01 00:00:00
abstract::Many techniques for repositioning dislocated posterior chamber implants described in the recent literature involve intricate intraocular manipulation of a needle or other sharp instrument. The author describes an improved sulcus fixation technique, which combines the best features of external and internal approaches. ...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(92)32012-3
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND:Perimacular retinal folds have been reported in the shaken baby syndrome, but have not been described in adults with Terson syndrome. METHODS:The authors present two patients with perimacular retinal folds in adults with Terson syndrome. In one patient, electron microscopy was used to examine the membrane s...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(93)31507-1
更新日期:1993-08-01 00:00:00
abstract:BACKGROUND:Histopathologic studies of this unusual keratitis caused by Capnocytophaga species have not been reported previously. METHODS:The authors report the light microscopic and ultrastructural findings of three patients with a distinctive necrotizing keratitis caused by an anaerobic gram-negative bacillus. In thr...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(94)31081-5
更新日期:1994-12-01 00:00:00
abstract::Phenylephrine hydrochloride is a potent, effective, relatively safe drug with few ocular side effects. Side effects from topical instillation are uncommon but include severe systemic cardiovascular effects with elevated blood pressure and stroke. Ten percent phenylephrine should be used with caution in patients with k...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(80)35108-7
更新日期:1980-11-01 00:00:00
abstract:PURPOSE:Corneal curvature can be altered by shrinking stromal collagen with a pulsed solid-state holmium: YAG laser in a procedure termed laser thermokeratoplasty. METHODS:The authors performed laser thermokeratoplasty in 40 human cadaver eyes using a ring pattern of 32 spots, each spot having a diameter of 300 micron...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(93)31579-4
更新日期:1993-05-01 00:00:00
abstract:PURPOSE:To study the dexamethasone concentration in aqueous humor, vitreous, and serum of patients after repeated topical application of dexamethasone disodium phosphate. DESIGN:Prospective nonrandomized comparative trial. PARTICIPANTS:Twenty phakic patients scheduled for a first vitrectomy. METHODS:All participants...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(02)01176-4
更新日期:2002-10-01 00:00:00
abstract::Three patients with idiopathic central serous chorioretinopathy (ICSC) and bullous retinal detachment (RD) were examined at least 2 years after the onset of the disease in one patient and over 10 years in the other two patients. There were large areas of retinal pigment epithelium (RPE) degeneration in each patient. I...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(87)33243-9
更新日期:1987-12-01 00:00:00
abstract:PURPOSE:To review the clinical experience with fungal keratitis in south Florida over a 10-year period. METHODS:One hundred twenty-five cases of fungal keratitis were identified in the microbiology laboratory records between January 1982 and January 1992. The medical record of each patient was reviewed. RESULTS:The m...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(94)31225-5
更新日期:1994-06-01 00:00:00
abstract:PURPOSE:To assess visual acuity impairment in Stargardt disease. DESIGN:Retrospective clinic-based cross-sectional study. PARTICIPANTS:Three-hundred sixty-one patients with Stargardt disease. METHODS:Clinical findings in 361 patients were analyzed as part of a cross-sectional evaluation. Visual acuity at their most ...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/S0161-6420(03)00333-6
更新日期:2003-06-01 00:00:00
abstract:PURPOSE:To examine whether glaucoma status or measures of visual function affected by glaucoma are associated with self-reported difficulty with vision-intensive tasks in a population-based study. DESIGN:Cross-sectional study. PARTICIPANTS:One thousand one hundred sixty individuals who participated in the fourth roun...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ophtha.2007.04.050
更新日期:2008-02-01 00:00:00
abstract:OBJECTIVE:To study the effects of trabeculectomy and needling revision of poorly functioning blebs on the optic nerve head (ONH) circulation in patients with primary open-angle glaucoma (POAG). DESIGN:Prospective, nonrandomized, self-controlled trial. PARTICIPANTS:Nineteen POAG patients (age range, 52 +/- 12 years; m...
journal_title:Ophthalmology
pub_type: 临床试验,杂志文章
doi:10.1016/s0161-6420(00)00541-8
更新日期:2001-03-01 00:00:00
abstract:PURPOSE:The hydroxyapatite implant is an ocular motility implant designed to provide natural movement of the artificial eye. The movement of the prosthesis is maximized when the implant is coupled to the prosthesis via a peg. The purpose of this study is to determine the complications of the hydroxyapatite motility peg...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(97)30087-6
更新日期:1997-10-01 00:00:00
abstract:PURPOSE:To evaluate the life and professional work of the English ophthalmologist Herbert Herbert (1865-1942). DESIGN:Historical study. METHODS:The main sources for this investigation are Herbert's approximately 65 published papers and 3 monographs. Other sources are contemporary publications by other ophthalmologist...
journal_title:Ophthalmology
pub_type: 传,历史文章,杂志文章
doi:10.1016/j.ophtha.2013.11.018
更新日期:2014-05-01 00:00:00
abstract::A low cost microcomputer was used to: (1) word process and edit this manuscript, (2) create a patient file storage and retrieval system, (3) transcribe and store information from video display such as wide-angle fundus photographs and fluorescein angiograms, (4) plot data points in graphic display mode, (5) solve comp...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(82)34867-8
更新日期:1982-01-01 00:00:00
abstract:PURPOSE:To test the effect of postoperative subconjunctival 5-fluorouracil (5-FU) on the pressure outcome in combined procedure (limbus-based trabeculectomy + clear-cornea phacoemulsification). METHODS:Prospective randomized, controlled clinical trial; n = 24 eyes (24 patients) with concurrent open-angle glaucoma and ...
journal_title:Ophthalmology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0161-6420(97)30336-4
更新日期:1997-02-01 00:00:00
abstract::A clinicopathologic study of multiple extramacular drusen (MED) was performed on 784 eyes of 412 consecutive autopsies and on 100 eyes of 50 consecutive patients with MED. The clinical and histopathologic characteristics of MED and its correlation with reticular degeneration of the pigment epithelium (RDPE) and with m...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(86)33615-7
更新日期:1986-08-01 00:00:00
abstract::After routine retrobulbar injection of a 4-ml 1:1 mixture of 0.75% bupivacaine, and of 2% lidocaine and one ampule of hyaluronidase for cataract extraction, the patient sustained bilateral opthalmoplegia, blindness, central respiratory arrest, and loss of consciousness. Neurologic examination shortly thereafter sugges...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(86)33543-7
更新日期:1986-11-01 00:00:00
abstract::Since its description in 1950, numerous surgical techniques have been advocated to treat Brown's superior oblique tendon sheath syndrome. Of these, a tenectomy of the homolateral superior oblique has emerged as the most effective method. However, an iatrogenically produced superior oblique paralysis has been found to ...
journal_title:Ophthalmology
pub_type: 杂志文章
doi:10.1016/s0161-6420(82)34787-9
更新日期:1982-04-01 00:00:00