Biomedical subjects

Marek E Prost

Publications and source records attributed to Marek E Prost.

7 recordsLinked to original sources

PubMed2005

[Antibiotic resistance of conjunctival bacterial flora in children].

PURPOSE: To evaluate conjunctival bacterial flora in children and its resistance to the most frequently antibiotics used by the ophthalmologists in Poland. MATERIAL AND METHODS: Bacterial conjuntival cultures obtained in 593 children without ocular infections. RESULTS AND CONCLUSIONS: Pathogenic bacterial isolates were identified in 26.3% children. Most frequently isolated were Gram-positive cocci (70.5%). Significant resistance of Gram-positive cocci to aminoglicosides (5% to 65%) was observed. Emerging resistance to fluoroquinolones, especially of coagulase-negative staphylococci (in 21%), was also observed.

Anti-Bacterial Agents↗

PubMed2005

[Central corneal thickness measurements in children].

PURPOSE: To evaluate central corneal thickness in children. MATERIAL AND METHODS: Central corneal thickness was measured with the use of ultrasound pachymeter in 360 children aged 0-14 years. RESULTS: Mean central corneal thickness was 537 microm after the birth and 567 microm in the age of 14 years. Wide differences between minimum and maximum recorded values were observed (410-650 microm) in first 2 years of life, and 420-640 microm in years 2-14. CONCLUSIONS: 1. Mean central corneal thickness in children (even in small one's) does not differ significantly from adults and does not change with age. 2. Great differences between minimum and maximum recorded values were observed in children (especially in first two years of life), exceeding the range in adults. 3. IOP measurements in children should be corrected according to the results of central corneal thickness.

Adolescent↗

PubMed2005

[Central corneal thickness in children with congenital glaucoma].

PURPOSE: To evaluate central corneal thickness in children with congenital glaucoma. MATERIAL AND METHODS: Central corneal thickness was measured with the use of ultrasound pachymeter in 49 eyes of 30 children, with congenital glaucoma aged 0-12 years. RESULTS: Mean central corneal thickness was 462 microm. Very wide differences between minimum and maximum recorded values were observed (380-780 microm). Three groups of patients could be distinguished: with very thin cornea of 380-450 microm (73% children), with normal corneal thickness of about 550 microm (15%) and with very thick cornea of 680-780 microm (12% patients). CONCLUSIONS: 1. Mean central corneal thickness in children with congenital glaucoma is significantly thinner than in healthy children in the same age and in adult patients with glaucoma. A very wide differences between minimum and maximum recorded values, are observed in these patients. 2. The results of applanation tonometric measurements are underestimated in most cases or less frequently overestimated. 3. The measurements of central corneal thickness should be performed in every patient with congenital glaucoma to correct the IOP values.

Child↗

PubMed2004

[IOL calculations in cataract operations in children].

The rapid growth of the eye must be accounted for, when calculating the dioptric power of the IOL before cataract surgery in children. Therefore in the paper, changes in axial length of the eye, refractive power of the cornea and dioptric power of IOL for correction of aphakia in children aged 0-14 years were measured. Basing on the obtained data, the guidelines for the choice of IOL in different age of children were worked up. Between 1 and 2 years the power of the IOL should be undercorrected by 20%, at 2 to 4 years by 15% and at 4 to 8 years by 10%.

Adolescent↗

PubMed2003

[Treatment of retinal detachment of the course of retinopathy of prematurity].

Cryo- and laser therapy of stage 3 have reduced, but not eliminated the occurrence of retinal detachment in stages 4a, 4b and 5 of ROP. In this disease the treatment of these stages is still the greatest challenge to the ophthalmologist. Therefore, the aim of this paper is to present our up-to-date possibilities of treatment of different kinds of retinal detachments in ROP, including segmental scleral buckling, encircling scleral buckling, scleral resection, vitrectomy and its modifications in ROP. Guidelines of surgery of retinal detachment in active stage 4 and 5 of retinopathy of prematurity have been described.

Cryosurgery↗

PubMed2003

[Results of treatment of retinal detachment in active stage-5 retinopathy of prematurity].

PURPOSE: To evaluate the surgical and functional results of encircling scleral buckling in treatment of active stage 5 retinopathy of prematurity. MATERIAL AND METHODS: 68 premature infants (121 eyes) with active stage 5 ROP operated with the use of the modified encircling buckling technique. The surgical and functional results were compared with the results observed in 91 unoperated children with active stage 5 ROP. RESULTS: In the operated group total retinal reattachment was observed in 52% and partial reattachment in 24.5% of premature infants. The surgery failed to reattach the retina in 23.5%. Visual acuity was: no light perception in 56.1%, light perception to 0.02 in 24.5% and 0.02 to 0.2 in 19.4% of children. In unoperated group spontaneous reattachment was observed in 6% of infants and visual acuity was: no light perception in 76%, light perception in 20% and finger counting in 4% of them. CONCLUSION: The obtained results indicate, that modified encircling buckling can be an effective treatment in reattaching the retina in stage 5 ROP although useful vision can be obtained in only 20% of operated children.

Female↗

PubMed2002

[Evaluation of the visual function in employees working with computers].

PURPOSE: To evaluate the effects of long-term work with computer monitor on the accommodation, convergence, stereopsis, near and distant visual acuity. MATERIAL AND METHODS: The studies of the accommodation, convergence, stereopsis, near and distant visual acuity have been performed in 50 employees working with the computer 6.5 hours daily, 5-6 days weekly and 5 to 12 years. The same studies have been performed in 50 white-collar workers, who had no contact with the computer in their work. RESULTS: No changes in the accommodation, convergence, stereopsis, near and distant visual acuity have been found in the employees in both studies groups. CONCLUSION: Long-term work with the computer monitor does not cause changes in the visual function of the employees. Reported changes are probably cause by the visual fatigue associated with the near work, and not by the direct influence of the computer monitor.

Accommodation, Ocular↗