PURPOSE To test the hypothesis that (1) there are quantitative differences in the cellular responses in the corneal stroma after photorefractive keratectomy (PRK) for low myopia compared to high myopia and (2) there are both qualitative and quantitative differences in the cellular responses in the corneal stroma after PRK for high myopia and laser in situ keratomileusis (LASIK) for high myopia....

PURPOSE To evaluate ocular straylight before and after photorefractive keratectomy (PRK) for low myopia with and without topical mitomycin (MMC) treatment. METHODS Patients who underwent PRK for low myopia were enrolled into the study. PRK without MMC was performed in 21 eyes (12 patients), whereas PRK with topical 0.02% MMC was performed in 25 eyes (14 patients). Both groups were treated usi...

PURPOSE To investigate the production of the epithelial basement membrane (EBM) component mRNAs at time points before lamina lucida and lamina densa regeneration in anterior stromal cells after corneal injury that would heal with and without fibrosis. METHODS Rabbit corneas were removed from 2 to 19 days after -4.5D or -9.0D photorefractive keratectomy (PRK) with the VISX S4 IR laser. Corneas...

To study the direct effects of photosynthesis on allocation of biomass by altering photosynthesis without altering leaf N or nitrate content, phosphoribulokinase (PRK) activity was decreased in transgenic tobacco (Nicotiana tabacum L.) with an inverted tobacco PRK cDNA and plants were grown at different N levels (0.4 and 5 mM NH4NO3). The activation state of PRK increased as the amount of enzym...

PURPOSE To evaluate results of two surface excimer laser refractive surgery techniques--photorefractive keratectomy (PRK) and butterfly laser epithelial keratomileusis (butterfly LASEK). METHODS A prospective, randomized, double-masked study of 51 patients (102 eyes) who underwent laser refractive surgery. One eye of each patient was randomized to be operated with PRK and the fellow eye with ...

The activity of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) embedded in the phosphoribulokinase (PRK).GAPDH.CP12 complex was increased 2-3-fold by reducing agents. This occurred by interaction with PRK as the cysteinyl sulfhydryls (4 SH/subunit) of GAPDH within the complex were unchanged whatever the redox state of the complex. But isolated GAPDH was not activated. Alkylation plus mass spe...

PURPOSE To use a double-pass system to compare the optical quality after photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK) for mild to moderate myopia. SETTING Universitat Politècnica de Catalunya, Terrassa, Barcelona Institute of Ocular Microsurgery, Barcelona, Spain. DESIGN Comparative case series. METHODS Optical quality was assessed with a clinical double-pass...

PURPOSE To report orthoptic changes after photorefractive keratectomy (PRK). METHODS This interventional case series included 297 eyes of 150 patients scheduled for PRK. Complete ophthalmologic evaluations focusing on orthoptic examinations were performed before and 3 months after PRK. RESULTS Before PRK, 2 (1.3%) patients had esotropia which remained unchanged; 3 (2%) patients had far exot...

PURPOSE To evaluate epithelial healing, postoperative pain, and visual and refractive outcomes after photorefractive keratectomy (PRK) using three epithelial removal techniques. DESIGN Prospective, nonrandomized, comparative trial. METHODS SETTING Department of Ophthalmology, Yonsei University College of Medicine and Balgensesang Ophthalmology Clinic, Seoul, Korea. INTERVENTIONS For th...

Zawód psychoonkologa w Polsce nie jest dostatecznie uregulowany prawnie. Aktualnie, według rozporządzenia Ministra Zdrowia sprawie świadczeń gwarantowanych z zakresu leczenia szpitalnego, psychoonkolog to osoba wyższym wykształceniem medycznym, tj. absolwent uczelni medycznej, np. lekarz czy pielęgniarka, którzy spełnili dodatkowy warunek ukończenia studiów podyplomowych psychoonkologii. Jest z...