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Biomedical subjects

H Lichter

Publications and source records attributed to H Lichter.

12 recordsLinked to original sources
PubMed2001

Posterior chamber intraocular lens implantation after capsular tear: ultrasound biomicroscopy evaluation.

PURPOSE: To evaluate by ultrasound biomicroscopy (UBM) the exact position of a posterior chamber intraocular lens (PC IOL) implanted above a posterior capsule tear and to correlate the findings with the outcomes and complication rate. SETTING: Department of Ophthalmology, Rabin Medical Center, Petah Tiqva, Israel. METHODS: In a retrospective noncomparative case series, 36 patients (36 eyes) who had extracapsular cataract extraction (ECCE) complicated by capsular tear were evaluated. In all cases, a PC IOL was implanted above the remnant of the capsule without suturing. Ultrasound biomicroscopy was performed to study the exact position of the optic and haptic. The outcomes and complication rate were determined from patient examinations performed during a follow-up of 1 to 6 years. RESULTS: Optic tilt was found in 20 of 36 patients (56%). In 17 patients (47%), both haptics were located in the sulcus. In 15 patients (42%), 1 haptic was observed in the sulcus and 1 in the bag or elsewhere. No correlation was found between the position of the optic and the location of the haptics. Minimal postoperative complications were observed, and only 1 patient required another surgery for a dislocated IOL. CONCLUSION: By UBM, half the patients had optic tilt and more than half the IOLs were not implanted in the sulcus, the intended location.

Adult↗
PubMed2000

Keratoconus and mitral valve prolapse.

PURPOSE: To investigate the prevalence of keratoconus in patients with mitral valve prolapse (MVP). METHODS: Videokeratography was performed in 36 patients (72 eyes) with an echocardiographic diagnosis of MVP, and were compared with 25 controls. All participants underwent slit-lamp examination and completed a medical questionnaire about joint hypermobility, arthralgia, asthma, and allergic reactions. RESULTS: Keratoconus was found in eight eyes (11. 1%) (P =.056) of eight patients (22.2%) (P =.049) in the MVP group and in one eye (2%) of one patient (4%) in the control group. The keratoconus was unilateral and asymptomatic in all cases. Conjunctival papillae were statistical significant higher in the MVP group (P =.015). A statistically significant intergroup difference existed in the presence of an allergic reaction (P =.001), but not in arthralgia, hypermobility of joints, or asthma. CONCLUSION: A borderline important association of MVP with keratoconus and with allergy exists. Patients with mitral valve prolapse complaining of poor vision should be suspected of having keratoconus.

Adult↗
PubMed2000

Analgesic effect of topical sodium diclofenac 0.1% drops during retinal laser photocoagulation.

AIMS: To evaluate the analgesic effect of topical sodium diclofenac 0.1% during retinal laser photocoagulation. METHODS: 87 patients, 45 with proliferative diabetic retinopathy treated with two sessions of panretinal photocoagulation (group A), and 42 patients with non-proliferative diabetic retinopathy who underwent grid treatment of the posterior pole (19 bilaterally) (group B). Sodium diclofenac 0.1% or sodium chloride 0.9% drops were topically applied 30-135 minutes before laser treatment in a masked fashion. Patients who had two sessions were given the alternate drug in the second one. Pain level was evaluated immediately after laser treatment with the visual analogue scale (VAS). The results were statistically analysed. RESULTS: Patients in group A reported pain in 85/90 sessions (94%). The average pain level was 44.2% with sodium diclofenac 0.1% drops and 53.1% with sodium chloride 0.9% drops (p = 0.011 by paired t test). Patients in group B reported pain in only 16/60 sessions (26. 7%), and the pain level ranged from 10% to 60% regardless of the kind of drops used. There was no correlation in either group between level of pain and time interval from application of the drops to laser treatment (30-135 minutes) or average energy level used (100-500 mW). CONCLUSION: Sodium diclofenac 0.1% is useful for pain reduction and should be applied before panretinal photocoagulation.

Analgesics↗
PubMed1999

Simultaneous indocyanine green and fluorescein angiography in retinal pigment epithelium tear using the confocal scanning laser ophthalmoscope.

PURPOSE: To describe the indocyanine green angiographic pattern of retinal pigment epithelium tears in the setting of age-related macular degeneration compared with the fluorescein angiographic features. METHODS: Twelve consecutive patients (12 eyes) with a retinal pigment epithelium tear underwent simultaneous indocyanine green angiography and fluorescein angiography with the confocal scanning laser ophthalmoscope. The findings for the two modes were compared. RESULTS: Choroidal neovascular membrane was evident beneath the rolled retinal pigment epithelium on indocyanine green angiograms in 11(92%) of 12 eyes: a focal neovascular membrane was apparent in five (42%) of 12 eyes, whereas a plaque neovascular membrane was seen in six (50%) of 12 eyes. In comparison, fluorescein angiography demonstrated late leakage as a result of occult choroidal neovascular membrane in nine (82%) of 11 eyes but no well-defined choroidal neovascular membrane. CONCLUSIONS: Indocyanine green angiography is superior to fluorescein angiography for imaging choroidal neovascularization in cases of retinal pigment epithelium tear and may serve as an important adjunct to indocyanine green-guided laser treatment in selected cases.

Aged↗
PubMed1999

Corneal topographic changes after retinal and vitreous surgery.

PURPOSE: To investigate the topographic changes in the cornea after retinal and vitreous operations. DESIGN: Observational prospective case series. PARTICIPANTS: The study population included 46 patients after vitreoretinal surgery: 11 underwent pneumatic retinopexy, 10 underwent vitrectomy, and 25 underwent scleral buckling procedure. METHODS: The corneal topography was measured by videokeratography with the absolute program and evaluated statistically by a quantitative comparative method, which was developed for this study, for the whole and the central cornea. MAIN OUTCOME MEASURES: The corneal topographic changes were measured in diopters (D), evaluating and comparing the preoperative and postoperative measurements. RESULTS: None of the operative procedures changed the shape of the whole cornea. Vitrectomy induced radial steepening of the central cornea 1.2 to 1.6 D, corresponding to the scleral sutures. Central steepening (average, 2.2 D) was also noted in the first week after circular buckling, but it flattened (average, 1.4 D) after 1 to 3 months. When an additional radial or circumferential buckling element was added to the circular buckle, steepening of the entire cornea and radial steepening of the central cornea (average, 0.6-0.8 D) occurred in the first week and flattened or returned to baseline after 1 to 3 months. There was no correlation between the location of the additional buckling element and the corneal topographic change. CONCLUSIONS: Corneal videokeratography is a useful tool for evaluating the postoperative corneal curvature. It showed that vitreoretinal surgery alters the shape of the cornea when buckling or scleral sutures are used, but pneumatic retinopexy does not.

Adult↗
PubMed1998

[Kimura's disease and angiolymphoid hyperplasia with eosinophilia-- on disease with different expressions?].

Kimura's disease is a rare angiolymphoid proliferative disorder of soft tissue characterized by subcutaneous swelling and a predilection for the head and neck. There are usually enlarged regional lymph nodes, eosinophilia and elevated sedimentation rate and IgE levels. A 26-year-old women with subcutaneous masses in the submandibular area is reported. The diagnosis of Kimura's disease versus angiolymphoid hyperplasia is discussed.

Adult↗
PubMed1996

Extracapsular cataract extraction and intraocular lens implantation in eyes filled with silicone oil.

Extracapsular cataract extraction with posterior chamber intraocular lens implantation was performed in five phakic eyes filled with silicone oil following vitreoretinal surgery. Silicone oil migration was prevented during surgery using an anterior chamber maintaining system and a self-sealed corneoscleral tunnel incision. The posterior capsule opacified within 3 months in all patients, and neodymium:YAG capsulotomy or surgical discission was performed in a diamond-shaped pattern. No silicone-related complications were found, including silicone oil migration into the anterior chamber. There were no difficulties visualizing the peripheral retina during funduscopy.

Cataract↗
PubMed1995

Intraocular intrusion of sutures after retinal detachment buckling surgery.

BACKGROUND: Intraocular intrusion of tight encircling silicone band is a major complication of retinal detachment surgery leading to subretinal and vitreous hemorrhage, retinal detachment, and phthisis bulbi. Intrusion of the sutures into the eye has only been reported as an adjunct to buckle intrusion. METHODS: Seven patients (9 eyes) are presented in whom intrusion of sutures occurred as a late complication of retinal detachment surgery using the extrascleral buckling technique. Their complications and treatments are discussed. RESULTS: Eleven anchoring sutures were observed under the retina and two sutures penetrated into vitreous cavity. In five eyes (55.5%), small subretinal or vitreous hemorrhages were noted and in one of them perforation with total detachment occurred. In four eyes, no complications were detected. In four eyes, the silicone band was cut and left in place and the hemorrhages were spontaneously absorbed. The perforated eye underwent replacement of the silicone band with a wide silicone sponge, followed by vitrectomy and silicone oil injection. CONCLUSIONS: Intrusion of sutures into the eye can rarely be seen years after retinal detachment surgery and usually do not require surgical intervention. When hemorrhage occurs, cutting of the silicone band only, with no attempt to remove the band or the sutures, is recommended.

Foreign-Body Migration↗
PubMed1986

Rapid symptomatic relief of streptococcal pharyngitis in children.

Sixty 3- to 14-year-old outpatients with positive streptococcal group A bacterial cultures and clinical signs and symptoms of pharyngitis were treated with a single intramuscular (IM) injection of penicillin G benzathine/penicillin G procaine in a multicenter study. At the first follow-up visit, usually within 48 hours of the injection, 60 children had negative cultures, and the mean body temperature had decreased from 100.2 +/- 1.6 degrees F to 98.5 +/- 0.5 degree F (P less than 0.05). At this time, the investigators rated 77% of the children clinically cured and the remaining 23% improved; major signs and symptoms (sore throat, difficulty swallowing, lethargy, and cervical node enlargement and tenderness) had disappeared in nearly all of the children. Initial injection site pain, noted in only 15% of the children 48 hours later, probably was secondary to the injection and not drug related. Most other adverse reactions (in seven children) also were injection related, were mild or moderate, and required no countermeasures. At the second follow-up visit approximately 10 days after injection, all children were considered clinically and bacteriologically cured. Thus, the combination of IM benzathine and procaine penicillin not only is safe and effective but eliminates compliance concerns.

Adolescent↗
PubMed1978

An attempt at prevention of obesity in infancy.

A study of The Prudent Diet in early infancy was undertaken in a test group of 80 infants as an attempt to prevent overweight in a private practice setting. This group was compared with another group of 50 infants born in 1964 who were fed the standard infant diet then in use. Although an incidence of 34.1% overweight was present in the comparison group as compared with 25% in the diet group at age 3 months, by age 3 years the comparison still showed a 25.5% prevalence of overweight as compared with the study group with a significantly lower incidence of only 1.28%. These results require confirmation from other investigators, as well as long-term follow-up observation of patients before one could consider recommending such a diet for widespread use.

Adult↗