ABSTRACT
PURPOSE: To evaluate the usefulness of ultrasound and MRI in diagnosing Morton's Neuroma, and the effect and significance of stepwise treatment. MATERIALS AND METHODS: Out of all patients suspected of Morton's neuroma through history taking and physical examination, 77 patients (84 feet, 95 lesions) in whom Morton's neuroma was confirmed by ultrasound or MR imaging study or was clinically suspected with negative imaging studies, and followed up for over 3 months were included. In all cases, history taking and imaging study were done, and by comparison with operative findings of the patients, the sensitivity of ultrasound and MRI was checked. Postoperative evaluation was done using the AOFAS scale. The patient's satisfaction was also examined. RESULTS: Morton's neuroma occurred most frequently at the 3rd web space of the foot (56%), followed by the 2nd web space (44%). Out of 15 cases suspected of morton's neuroma through ultrasound study, 13 were pathologically positive showing a sensitivity of 85.7%. Out of 16 cases suspected of morton's neuroma through MRI, 14 were pathologically positive showing a sensitivity of 83.3%. There was no significant difference in sensitivity between the two imaging modalities. CONCLUSION: In diagnosing Morton's neuroma, ultrasound examination had a similar sensitivity with MRI, therefore can be used as a screening study.
Subject(s)
Humans , Foot , Magnetic Resonance Imaging , Mass Screening , Neuroma , Physical Examination , UltrasonographyABSTRACT
Authors recorded standard electroretinogram in two groups of diabetic patients. Group A, consisted of 60 eyes with no visible diabetic retinopathy and Group B, 30 eyes with mild nonproliferative diabetic retinopathy. The electroretinogram was recorded according to the standard electroretinogram procedure recommanded by the ISCEV. In rod and cone response, the amplitude of b wave were 329.0+/-46.9 microvoltin Group A and 308.8+/-37.8 microvoltin Group B. The implicit time of b wave were 40.5+/-3. 0microvoltin Group A and 45.8+/-5.4microvolti n Group B. The summed amplitude of oscillatory potentials were 125.7+/-38.7microvolt in Group A and 112.0+/-17.7microvoltin Group B. Above results indicate that for the disgnostic criteria for diabetic retinopathy, the amplitude and implict time of b wave, and the summed amplitude of oscillatory potentials in maximal combined response were useful. On receiver operating characteristic(ROC) curves in maximal combined response, cut off value for the amplitude and implicit time of b wave were 315 microvoltand 42ms espectively. Cut off value for the summed amplitude of oscillatory potentia-als was 118 microvolt. In results, on ROC curve, the implicit time of b wave in maximal combined response was most accurate, and the summed amplitude of oscillary potentials was the next, followed by the amplitude of b wave in the maximal combined response.
Subject(s)
Humans , Diabetic Retinopathy , Early Diagnosis , ROC CurveABSTRACT
Authors investigated the effect of the timing of vitrectomy for endophthalmitis on the final visual acuity, by retrospectively reviewing the clinical records of patients who have undergone pars plana vitrectomy for the treatment of endophthalmitis from Feb. 1990. Twenty one cases(21 eyes) were included who were followed up for 6 months or longer after surgery and intravitreal injection of antibiotics. 14 cases were male. The age ranged from 28 to 81 years, with mean age of 40.5 years. Ten cases arose from intraocular surgeries, with 7 cases of early-onset and 3 cases of late-onset, the other 10 cases were related to ocular trauma and the remaining one case was associated with a filtering bleb. Intravitreal injections, subconjunctival injections and topical eye instillation of antibiotics were preformed as an initial treatments on cases whose retina were invisible due to severe inflammatory media opacities. Those cases who did not respond to initial treatments were divide into two groups: one which underwent early vitrectomy within 2 days, and the other which underwent late vitrectomy after 2 days. Ten out of 12 cases among early vitrectomy group and 3 out of 9 cases among late vitrectomy group obtained final vision of 0.1 or better. The cases which underwent early vitrectomy showed good visual prognosis with statistical significance(P<0.05). Therefore, authors suggest that management of endophthalmitis with initial severe inflammatory reactions should include early diagnosis, and early vitrectomy with intravitreal infection of antibiotics for recovery of maximal visual acuity.
Subject(s)
Humans , Male , Anti-Bacterial Agents , Blister , Early Diagnosis , Endophthalmitis , Intravitreal Injections , Prognosis , Retina , Retrospective Studies , Visual Acuity , VitrectomyABSTRACT
When aniridia is associated with aphakia after trauma, traditional implantation of posterior chamber IOL has some technical difficulties owing to lack of iris support and weakness of zonule, but especially big problem lies in that it cannot satisfy improvement of symptoms such as photo phobia, epiphora and visual acuity simultaneously. For the purpose of correcting these two diseases, specially designed artificial lens (Black-Diaphragm IO-LMORCHER IOL) has been introduced and is being used currently. Black-Diaphragm IOL may have some postoperative complications such as persistent intraocular inflammation, corneal endothelial cell damage, cystoid niacular ederna, and increased intraocular pressure. On 6 patients (4 rnales, 2 females) who had aniridia associated with aphakia after trauma authors implanted Black-Diaphragm IOL into ciliary sulcus by transscleral fixation. During average of 7.3 months follow up periods, we observed corneal ederna, hyphema, vitreous hernorrhage in I eye (I case) but, in the remaining 5 eye.
Subject(s)
Humans , Aniridia , Aphakia , Corneal Endothelial Cell Loss , Follow-Up Studies , Hyphema , Inflammation , Intraocular Pressure , Iris , Lacrimal Apparatus Diseases , Lenses, Intraocular , Phobic Disorders , Postoperative Complications , Visual AcuityABSTRACT
We have studied the overcorrection, undercorrection, astigmatic change and its incidence on time sequence after the excimer laser photorefractive keratectomy, and its relation with the degree of preoperative myopia, sex, and age. The study has been done with 429 eyes which we could assess for 6 months or more after excimer laser photorefractive keratectomy of myopia from July 1993 to march 1997. Overcorrection of more than -1D was common during the early postoperative periods and then gradually decreased with time. Overcorrection has been seen in 261 eyes(60.84%) after 1 month, but only 33 eyes(13.47%) after 1 year, and 13 eyes(11.02%) after 2 years. Undercorrection has been seen in 2 eyes(0.47%) after 1 month, but 25 eyes(10.20%) after 1 year, and 20 eyes(16.95%) after 2 years. Surgically induced astigmatism increased to 0.54+/-0.84D after 10 days and then decreased 0.19+/-0.75D after 12 months. Also, surgical induced astigmatism developed 1.13+/-1.10D in 247 eyes (57.58%) after 1 month, but decreased 0.89+/-0.45D in 107 eyes(43.67%) after 12 months. The occurrence of overcorrection and undercorrection was related to the severity of preoperative myopia(p0.05). The amount of postoperative astigmatism was related to preoperative astigmatism(p0.05).