Publications by authors named "P Ziak"

Aim: To evaluate the long-term impact of accelerated corneal cross-linking (A-CXL) on selected refractive and topographical parameters in eyes with progressive keratoconus.

Methods: 77 eyes with keratoconus in 54 patients treated with A-CXL (10 min "epi-off" protocol) were included in the analysis. Preoperative and postoperative (1, 3 and 5 years after A-CXL) values of the studied parameters were compared.

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Article Synopsis
  • The study aimed to assess the link between Bcl-2 protein, Ki-67 antigen expression, and the apoptotic index in relation to the behavior of non-melanoma eyelid tumors, particularly focusing on their aggressiveness.
  • A total of 68 patients with 70 confirmed non-melanoma eyelid tumors were analyzed, with basal cell carcinoma being the most common type and a significant correlation found between tumor size and aggressiveness.
  • The findings suggest that understanding these biomarkers can help in tailoring effective treatments to improve aesthetic results and survival rates for patients with these tumours.
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Aims: To demonstrate changes in distance and near fusional vergence measured with prism bars, while compensating for present heterophoria using current ametropia correction. In addition, to determine the differences in values of the AC/A ratio determined by the heterophoric (calculation) and gradient methods.

Material And Methods: The basic sample includes 19 subjects with a mean age of 21.

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Aims: The aim of the authors' study was to determine the prevalence of myopia and premyopia in children and adolescents attending primary school in a village in the north of Slovakia in the period before and after the peak of the Covid-19 pandemic.

Material And Methods: Changes in the spherical equivalent and axial length of the eyes were measured in 2019 and 2022 in a group of 47 children and adolescents within the age range of 7-12 years at the time of first measurement. In all the individuals, refraction was measured using an automatic keratorefractometer without the use of cycloplegic eye drops, and axial length was measured with an optical biometer.

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Aims: The aim of the study was to retrospectively evaluate changes in vision after the implantation of trifocal (tIOL) or rotationally asymmetric multifocal artificial intraocular lenses (mIOL) in patients undergoing clear lens extraction. The main goal was to determine whether changes to central visual acuity occur after the implantation of an IOL at a follow-up examination after one year. Other objectives were to determine the difference between the groups with implanted diffractive and rotationally asymmetric artificial intraocular lenses, as well as to evaluate the risk of accurate correction in patients who had lived most of their lives "undercorrected".

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