Biomedical subjects

Beata Zelichowska

Publications and source records attributed to Beata Zelichowska.

5 recordsLinked to original sources

PubMed2006

Multifocal diffractive intraocular lenses in cataract surgery--preliminary report.

PURPOSE: Evaluation of the efficacy of multifocal, diffractive intraocular lenses in cataract surgery. MATERIAL AND METHODS: 20 eyes in 10 patients, mean age 64 +/- 9 years, included in the study, undergoing phacoemulsification of the cataract with implantation of diffractive MIOL (AcrySof ReSTOR, SA60D3, Alcon). Follow-up was performed for a period of 6 months. Postoperative evaluation performed five times included: visual acuity for distance and near without and with best correction, contrast sensitivity, patient satisfaction in 10-grade scale, degree of independence from glasses and frequency of lighting effects. RESULTS: After 6 months from surgery uncorrected distance visual acuity > or =1.0 was achieved in 55% of operated eyes (6/11), and the best corrected in 91% (10/11). Uncorrected near visual acuity in 2-6 months after surgery was achieved in all patients. Contrast sensitivity for spatial frequencies in the range 12 and 18cdg was decreased, but in 6 cdg was normalized after 6 months of observation, and in 3 cdg was normal. Subjective patient satisfaction in 10-grade scale was on average in the first day after surgery 7.9 points and after 6 months 9.3. The necessity to use glasses (30%) and lighting effects had no bearing on subjective patient satisfaction perception. CONCLUSIONS: Multifocal diffractive lens implants are able to restore good visual acuity independent of distance and is effective and safe method in cataract surgery.

Aged↗

PubMed2006

Comparison of contrast sensitivity after implantation of diffractive lens SA60D3 and monofocal lens MA60BM.

PURPOSE: Comparison of CSF in groups with diffractive lens SA60D3 and with monofocal lens MA60BM, and applying results to healthy population. MATERIAL AND METHODS: The study included 3 groups of patients. First group consisted of 10 patients, who have undergone implant surgeries with diffractive lenses SA60D3 in both eyes; second group included 9 patients after implant surgeries with monofocal lenses MA60BM in both eyes. Third group included 10 patients with clear own lens. Groups were homogenous to number of patients, age and gender structure, as well as BCVA. CSF was determined for each eye. In the case of operated patients studies were performed 6 months after surgery. Homogeneity of groups was determined with Kruskal-Wallis test, but results of the studies were tested with variance. Results were shown in normalized CSF version. RESULTS: In conducted studies there was no statistical difference in specific evaluated cpd (3, 6, 12, 18) between SA60D3 group and MA60BM group after 6 months from surgery (p = 0.892, p = 0.926, p = 0.564, p = 0.9953). The above results were obtained by testing variance at confidence level p < or = 0.01. At the higher confidence level p < or = 0.05 there was significant difference between SA60D3 group, MA60BM group and healthy control. CONCLUSIONS: Diffractive lenses SA60D3 decrease CSF in comparable range as monofocal MA60BM lenses, which does not change acceptable standard for quality vision for monofocal lenses, that is currently accepted.

Aged↗

PubMed2006

[Multifocal intraocular lenses].

Multifocal intraocular lenses are the new option not only in cataract surgery, but either in refractive surgery. Use of multifocal lenses make patients less dependent on spectacle, than after implantation of monofocal intraocular lenses. In this article we present an actual review of multifocal intraocular lenses. Two main types of the implants: refractive and diffractive are described with their detailed characteristics. Special attention we paid on advantages and disadvantages as well as some limits to implantation of the multifocal implants.

Accommodation, Ocular↗

PubMed2005

[Evaluation of the medial canthus blepharoplasty using the lazy-T method].

PURPOSE: To evaluate the efficacy of surgical "Lazy-T" method used to correct ectropion of the lower punctum with the inferior lid laxity and the medial canthal tendon. METHOD AND MATERIAL: Between January 2004 and February 2005, four patients of mean age 67 years (+/-12) were operated with this method. In two patients, one eyelid was operated; the other two patients underwent bilateral lid surgery. Preoperative qualifications included: subjective assessment of epiphora (range 0-10 points), where 0 represents loss of epiphora and 10 points maximum intensification with ectropion of the lower punctum, laxity of the inferior eyelid more than 10 mm, and laxity of the medial canthal tendon of 2-nd degree or more. Two subjects, who expressed their consent, underwent lacrimal scintigraphy. Surgical technique included excise of the middle part of the lid at its full thickness, laterally from lower punctum, and correction of the conjunctiva. The follow-up period was 6 months on average. RESULTS: All patients reported reduction of epiphora of 5 points on the average. Eyelid laxity decreased by mean 4.5 mm (+/- 1.0 mm). In two patients epiphora regressed, in two others - decreased. All patients evaluated the cosmetic result as satisfactory. CONCLUSIONS: The "Lazy-T" correction is an effective procedure, which restores the lower punctum into its normal anatomical position. It is a simple surgical technique that can free patients from epiphora.

Aged↗

PubMed2005

[The usefulness of thermography in the diagnostics of dry eye syndrome].

PURPOSE: The aim of the study was to evaluate corneal temperature in patients with dry eye syndrome, and in normal subjects by measuring with infrared radiation thermography. MATERIAL AND METHODS: Each eye of 9 patients with dry eye syndrome and each eye of 13 normal subjects, were evaluated in this study. The corneal surface temperature was measured during 15 seconds after opening the eye. RESULTS: Mean corneal temperature was lower in the dry eye syndrome patients compared with the control group. Decrease in time of mean corneal temperature in patients with dry eye syndrome, was lesser than in the control group. CONCLUSIONS: The study shows the usefulness of thermography in the diagnosis of dry eye syndrome.

Adult↗