94 research outputs found
Application of Rarebit Perimetry in Preperimetric Glaucoma
Π¦Π΅Π»: ΠΠ° ΡΠ΅ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΡ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΡΠ½ΠΈΡΠ΅ Π²ΡΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ Π½Π° Rarebit ΠΏΠ΅ΡΠΈΠΌΠ΅ΡΡΠΈΡΡΠ° Π·Π° ΡΡΡΠ°Π½ΠΎΠ²ΡΠ²Π°Π½Π΅ Π½Π° ΡΠ°Π½Π½ΠΈ ΡΡΠ½ΠΊΡΠΈΠΎΠ½Π°Π»Π½ΠΈ ΠΏΡΠΎΠΌΠ΅Π½ΠΈ ΠΏΡΠΈ ΠΏΡΡΠ²ΠΈΡΠ½Π° ΠΎΡΠΊΡΠΈΡΠΎΡΠ³ΡΠ»Π½Π° Π³Π»Π°ΡΠΊΠΎΠΌΠ°.ΠΠ΅ΡΠΎΠ΄ΠΈ: ΠΠΊΠ»ΡΡΠ΅Π½ΠΈ ΡΠ° ΠΎΠ±ΡΠΎ 47 ΠΎΡΠΈ ΡΠ°Π·ΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈ Π² Π΄Π²Π΅ Π³ΡΡΠΏΠΈ: 23 ΠΎΡΠΈ Ρ ΠΏΡΠ΅Π΄ΠΏΠ΅ΡΠΈΠΌΠ΅ΡΡΠΈΡΠ½Π° Π³Π»Π°ΡΠΊΠΎΠΌΠ° (ΠΠΠ) ΠΈ ΠΊΠΎΠ½ΡΡΠΎΠ»Π½Π° Π³ΡΡΠΏΠ° ΠΎΡ 24 ΠΎΡΠΈ, ΠΈΠ·ΡΠ»Π΅Π΄Π²Π°Π½ΠΈ ΡΡΠ΅Π· Rarebit ΠΏΠ΅ΡΠΈΠΌΠ΅ΡΡΠΈΡ (Π ΠΠ) ΠΈ ΡΡΠ°Π½Π΄Π°ΡΡΠ½Π° Π°Π²ΡΠΎΠΌΠ°ΡΠΈΡΠ½Π° ΠΏΠ΅ΡΠΈΠΌΠ΅ΡΡΠΈΡ (Π‘ΠΠ). ΠΠ° ΠΎΡΠ΅Π½ΠΊΠ° Π½Π° ΡΠ°Π·Π»ΠΈΠΊΠΈΡΠ΅ ΠΌΠ΅ΠΆΠ΄Ρ Π³ΡΡΠΏΠΈΡΠ΅ ΡΠ° ΠΈΠ·ΠΏΠΎΠ»Π·Π²Π°Π½ΠΈ Kruskal Wallis Test, Mann-Whitney Test, Fisher's Exact Test. Π§ΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»Π½ΠΎΡΡΡΠ° ΠΈ ΡΠΏΠ΅ΡΠΈΡΠΈΡΠ½ΠΎΡΡΡΠ° Π½Π° Π ΠΠ Π·Π° ΡΡΡΠ°Π½ΠΎΠ²ΡΠ²Π°Π½Π΅ Π½Π° ΡΠ°Π½Π½ΠΈ Π³Π»Π°ΡΠΊΠΎΠΌΠ½ΠΈ ΠΏΡΠΎΠΌΠ΅Π½ΠΈ Π΅ ΠΎΡΠ΅Π½Π΅Π½Π° ΡΡΠ΅Π· ROC Π°Π½Π°Π»ΠΈΠ· Ρ ΠΏΠΎΠΌΠΎΡΡΠ° Π½Π° ΡΠ°Π·Π»ΠΈΡΠ½ΠΈ Π°Π»Π³ΠΎΡΠΈΡΠΌΠΈ.Π Π΅Π·ΡΠ»ΡΠ°ΡΠΈ: Π‘ΡΠ΅Π΄Π½ΠΈΡΠ΅ ΡΡΠΎΠΉΠ½ΠΎΡΡΠΈ Π·Π° ΠΠR Π·Π° ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΠ΅ ΠΈ Π³ΡΡΠΏΠ°ΡΠ° ΠΠΠ ΡΠ° ΡΡΠΎΡΠ²Π΅ΡΠ½ΠΎ: 94.71% (SD 2.58); 87.61% (SD 4.80). Π Π°Π·Π»ΠΈΠΊΠΈΡΠ΅ Π² ΡΡΠΎΠΉΠ½ΠΎΡΡΠΈΡΠ΅ Π½Π° ΠΠR ΠΌΠ΅ΠΆΠ΄Ρ Π³ΡΡΠΏΠΈΡΠ΅ ΡΠ° ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈ Π·Π½Π°ΡΠΈΠΌΠΈ (Πann-Whitney Test, Ρ<Π.ΠΠ1 ). ΠΠ°ΠΉ-Π²ΠΈΡΠΎΠΊΠ° ΡΡΠΎΠΉΠ½ΠΎΡΡΡΠ° Π½Π° AROC (0. 849) Π΅ ΠΏΠΎΡΡΠΈΠ³Π½Π°ΡΠ°, ΠΊΠΎΠ³Π°ΡΠΎ Π·Π° Π°Π±Π½ΠΎΡΠΌΠ΅Π½ ΡΠ΅ ΠΏΡΠΈΠ΅ΠΌΠ° Rarebit ΡΠ΅ΡΡ Ρ ΠΠR<90% ΠΏΡΠΈ ΡΡΠ°Π²Π½ΡΠ²Π°Π½Π΅ Π½Π° Π·Π΄ΡΠ°Π²ΠΈΡΠ΅ ΠΎΡΠΈ Ρ ΡΠ΅Π·ΠΈ Ρ ΠΠΠ.ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅: Π ΠΠ Π΅ ΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»Π΅Π½ ΠΌΠ΅ΡΠΎΠ΄ ΡΠΏΡΡΠΌΠΎ Π΄Π΅ΡΠ΅ΠΊΡΠΈ Π² Π·ΡΠΈΡΠ΅Π»Π½ΠΎΡΠΎ ΠΏΠΎΠ»Π΅ ΠΏΡΠΈ ΠΏΡΠ΅ΠΏΠ΅ΡΠΈΠΌΠ΅ΡΡΠΈΡΠ½Π° Π³Π»Π°ΡΠΊΠΎΠΌΠ°. Π’Π΅ΡΡΡΡ Π΅ Π±ΡΡΠ· ΠΈ Π»Π΅ΡΠ΅Π½ Π·Π° ΠΈΠ·ΠΏΡΠ»Π½Π΅Π½ΠΈΠ΅.Aim: Π’ΠΎ determine the diagnostic capabilities of Rarebit perimetry for detection of early functional changes in primary open-angle glaucoma.Methods: Π total of 47 eyes divided into two groups: 23 eyes with preperimetric glaucoma (PPG) and a control group of 24 eyes were examined with Rarebit perimetry (RBP) and standard automated perimetry (SAP). Π’ΠΎ evaluate the differences between the groups were used Kruskal Wallis Test, Mann-Whitney Test and Fisher's Exact Test. The sensitivity and specificity of the RBP for detection of early glaucomatous changes were evaluated by ROC analysis using different algorithms.Results: Average ΠΠR for control and PPG group were respectively: 94.71% (SD 2.58); 87.61% (SD 4.80). Differences in ΠΠR between the groups were statistically significant (Πann-Whitney Test, Ρ <0.001). The highest value of AROC (0.849) was achieved when as abnormal was accepted Rarebit test with ΠΠR <90% when comparing healthy eyes to those with PPG.Conclusion: RBP is sensitive method for visual field defects in preperimetric glaucoma. The test is quick and easy to perform
Bilateral Simultaneous Retrobulbar Neuritis After Swine Flu: A Clinical Case Report
Retrobulbar neuritis is most commonly demyelinating and associated with multiple sclerosis. Rarely, it has been associated with viral and bacterial infections, systemic autoimmune diseases, vaccinations, and certain medications. We present a case of bilateral simultaneous optic neuritis following swine flu. We did a case report on a 56-year-old male patient with retrobulbar neuritis after swine flu, who had been treated in Alexandrovska Hospital, Sofia, Bulgaria. The diagnosis was based on the clinical exam, clinical course and on specialized investigations. The follow-up period was from February 2015 until April 2021. On admission in the hospital the best-corrected visual acuity of both eyes was decreased β VOD=0.6, VOS=PPLC. 30-2 visual field testing demonstrated no light sensitivity in the left eye, and decreased β in the right. Therapy was begun with methylprednisolone, pentoxiphylline, vinpocetine, piracetam, and clopidogrel. On day 19 the visual fields were significantly improved. On discharge, BCVA was 0.6-0.7 of the right eye and 0.7-0.8 β of the left, and improved to 1.0 during the follow-up period. Bilateral simultaneous retrobulbar neuritis is an infrequent immune complication after swine flu. In our case, we achieved recovery of normal visual acuity and a significant improvement in the visual fieds of both eyes. Therapy included systemic corticosteroids, pentoxiphylline, vinpocetine, piracetam, and clopidogrel
Application of OCT for choroid thickness examination
Π₯ΠΎΡΠΎΠΈΠ΄Π΅ΡΡΠ° ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΠ²Π° ΡΡΠ½ΠΊΠ°, ΠΏΠΈΠ³ΠΌΠ΅Π½ΡΠΈΡΠ°Π½Π° ΠΈ Π²Π°ΡΠΊΡΠ»Π°ΡΠΈΠ·ΠΈΡΠ°Π½Π° Π»Π°ΠΌΠΈΠ½Π°. ΠΡΠΈ Π½ΠΎΡΠΌΠ°Π»Π½ΠΈ ΠΎΠ±ΡΡΠΎΡΡΠ΅Π»ΡΡΠ²Π°, ΡΡ ΠΎΡΠΈΠ³ΡΡΡΠ²Π° ΠΊΠ°ΠΊΡΠΎ "ΠΈΠ·Ρ
ΡΠ°Π½Π²Π°Π½Π΅ΡΠΎ" Π½Π° ΡΠ΅ΡΠΈΠ½Π°Π»Π½ΠΈΡ ΠΏΠΈΠ³ΠΌΠ΅Π½ΡΠ΅Π½ Π΅ΠΏΠΈΡΠ΅Π» ΠΈ Π²ΡΠ½ΡΠ½Π°ΡΠ° ΡΠ΅ΡΠΈΠ½Π°, ΡΠ°ΠΊΠ° ΠΈ Π²ΠΈΠ΄ΠΈΠΌΠΈΡ ΠΊΠΎΠ»ΠΎΡΠΈΡΠ΅Ρ Π½Π° ΠΎΡΠ½ΠΈΡ ΡΡΠ½Π΄ΡΡ, Π±Π΅Π· Π΄Π° ΡΠ΅ ΠΏΠΎΠ΄ΡΠ΅Π½ΡΠ²Π° ΡΠΎΠ»ΡΡΠ° ΠΉ Π² ΡΠΎΠΏΠ»ΠΈΠ½Π½Π°ΡΠ° ΡΠ΅Π³ΡΠ»Π°ΡΠΈΡ Π½Π° ΠΎΠΊΠΎΡΠΎ. Π‘ΡΡΠ΅ΡΡΠ²ΡΠ²Π° Π³ΠΎΠ»ΡΠΌΠ° Π²Π°ΡΠ½Π°Π±ΠΈΠ»Π½ΠΎΡΡ Π² Π΄Π΅Π±Π΅Π»ΠΈΠ½Π°ΡΠ° Π½Π° Ρ
ΠΎΡΠΎΠΈΠ΄Π΅ΡΡΠ° (Π₯Π) ΡΠΏΠΎΡΠ΅Π΄ ΡΠ°Π·Π»ΠΈΡΠ½ΠΈ ΡΠ°ΠΊΡΠΎΡΠΈ ΠΊΠ°ΡΠΎ Π²ΡΠ·ΡΠ°ΡΡ, ΠΏΠΎΠ», Π°ΠΊΡΠΈΠ°Π»Π½Π° Π΄ΡΠ»ΠΆΠΈΠ½Π° ΠΈ Π΄Ρ. ΠΡΡΠ²ΠΈΡΠ΅ ΠΈΠ·ΡΠ»Π΅Π΄Π²Π°Π½ΠΈΡ Π½Π° Ρ
ΠΎΡΠΎΠΈΠ΄Π½Π°ΡΠ° Π΄Π΅Π±Π΅Π»ΠΈΠ½Π° ΠΌΠΎΠ³Π°Ρ Π΄Π° Π±ΡΠ΄Π°Ρ ΠΏΡΠΎΡΠ»Π΅Π΄Π΅Π½ΠΈ Π΄ΠΎ Π½Π°ΡΠ°Π»ΠΎΡΠΎ Π½Π° 20 Π²., ΠΏΡΠ΅ΠΌΠΈΠ½Π°Π²Π°ΠΉΠΊΠΈ ΠΏΡΠ΅Π· ΡΠ°Π·Π»ΠΈΡΠ½ΠΈ ΡΠ΅Ρ
Π½ΠΈΠΊΠΈ ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΈ, Π·Π° Π΄Π° ΡΠ΅ ΡΡΠΈΠ³Π½Π΅ Π΄ΠΎ Π²ΡΠ΅ ΠΏΠΎ-ΡΠΈΡΠΎΠΊΠΎ ΠΈΠ·ΠΏΠΎΠ»Π·Π²Π°Π½Π°ΡΠ° Π² Π½Π°ΡΠΈ Π΄Π½ΠΈ ΠΎΠΏΡΠΈΡΠ½Π°ΡΠ° ΠΊΠΎΡ
Π΅ΡΠ΅Π½ΡΠ½Π° ΡΠΎΠΌΠΎΠ³ΡΠ°ΡΠΈΡ (ΠΠ‘Π’) -ΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΡΠΊΠ° ΠΈΠ·ΠΎΠ±ΡΠ°Π·ΡΠ²Π°ΡΠ° ΡΠ΅Ρ
Π½ΠΈΠΊΠ°, Π±Π°Π·ΠΈΡΠ°Π½Π° Π½Π° Π½ΠΈΡΠΊΠΎ-ΠΊΠΎΡ
Π΅ΡΠ΅Π½ΡΠ½Π°ΡΠ° ΠΈΠ½ΡΠ΅ΡΡΠ΅ΡΠΎΠΌΠ΅ΡΡΠΈΡ, ΠΈΠ·ΠΏΠΎΠ»Π·Π²Π°ΠΉΠΊΠΈ ΠΎΠ±ΠΈΠΊΠ½ΠΎΠ²Π΅Π½ΠΎ ΠΈΠ½ΡΡΠ°ΡΠ΅ΡΠ²Π΅Π½Π° ΡΠ²Π΅ΡΠ»ΠΈΠ½Π°. ΠΠ·ΡΠ»Π΅Π΄Π²Π°Π½Π΅ΡΠΎ Π½Π° Ρ
ΠΎΡΠΎΠΈΠ΄Π΅ΡΡΠ° ΠΏΠΎΡΡΠ΅Π΄ΡΡΠ²ΠΎΠΌ ΠΠ‘Π’ ΠΎΡΠΊΡΠΈΠ²Π° Π½ΠΎΠ²ΠΈ Ρ
ΠΎΡΠΈΠ·ΠΎΠ½ΡΠΈ Π·Π° ΠΏΠΎ- Π΄ΠΎΠ±ΡΠΎ ΡΠ°Π·Π±ΠΈΡΠ°Π½Π΅ ΠΈ Π»Π΅ΡΠ΅Π½ΠΈΠ΅ Π½Π° ΡΠ°Π·Π»ΠΈΡΠ½ΠΈ ΡΠ΅ΡΠΈΠ½Π½ΠΈ ΠΈ Ρ
ΠΎΡΠΈΠΎΡΠ΅ΡΠΈΠ½Π½ΠΈ Π·Π°Π±ΠΎΠ»ΡΠ²Π°Π½ΠΈΡ.The choroid represents thin, pigmented and vascular lamina. In healthy eye, it supplies the nutrition either of retinal pigment epithelium or outer retina, and secures the colour of ocular fundus, and also plays an important role in the thermoregulation. There is a great variability in the choroidal thickness according to various factors as age, gender, refraction and others. First measurements of choroidal thickness could be traced to the beginning of 20th century, implementing and developing number of methods and techniques, which now are considered as outdated, just to reach nowadays` dominant-the optical coherence tomography (OCT). The choroidal thickness examination by OCT discovers new horizons for better understanding and treating of various retinal and chorioretinal disorders
Transplantation of ex vivo expanded limbal stem cells
Π¦Π΅Π» : Π¦Π΅Π» Π½Π° Π½Π°ΡΡΠΎΡΡΠΎΡΠΎ ΠΏΡΠΎΡΡΠ²Π°Π½Π΅ Π΅ Π΄Π° ΡΠ΅ ΠΈΠ·ΡΠ»Π΅Π΄Π²Π°Ρ Π²ΡΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈΡΠ΅ Π½Π° ΡΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΡΠ° Π½Π° Π΅Ρ
vivo ΡΠ°Π·ΠΌΠ½ΠΎΠΆΠ΅Π½ΠΈ Π°Π²ΡΠΎΠ»ΠΎΠΆΠ½ΠΈ Π»ΠΈΠΌΠ±Π°Π»Π½ΠΈ Π΅ΠΏΠΈΡΠ΅Π»Π½ΠΈ ΡΡΠ²ΠΎΠ»ΠΎΠ²ΠΈ ΠΊΠ»Π΅ΡΠΊΠΈ ΠΊΠ°ΡΠΎ ΠΌΠ΅ΡΠΎΠ΄ Π·Π° Π»Π΅ΡΠ΅Π½ΠΈΠ΅ Π½Π° ΠΏΠΎΠ²ΡΡΡ
Π½ΠΎΡΡΠ½ΠΈ ΠΎΡΠ½ΠΈ Π·Π°Π±ΠΎΠ»ΡΠ²Π°Π½ΠΈΡ. ΠΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΈ ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΈ: Π’ΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°ΡΠΈΠΈ Π½Π° Π°Π²ΡΠΎΠ»ΠΎΠΆΠ½ΠΈ Π΅Ρ
vivo ΡΠ°Π·ΠΌΠ½ΠΎΠΆΠ΅Π½ΠΈ ΡΡΠ²ΠΎΠ»ΠΎΠ²ΠΈ ΠΊΠ»Π΅ΡΠΊΠΈ Π±ΡΡ
Π° ΠΈΠ·Π²ΡΡΡΠ΅Π½ΠΈ Π½Π° ΡΠ΅ΡΠΈΡΠΈΠΌΠ° ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΈ Π½Π° ΡΡΠ΅Π΄Π½Π° Π²ΡΠ·ΡΠ°ΡΡ 56.5 Π³ΠΎΠ΄ΠΈΠ½ΠΈ ΠΏΡΠ΅ΠΌΠΈΠ½Π°Π»ΠΈ ΠΏΡΠ΅Π· ΠΠ»ΠΈΠ½ΠΈΠΊΠ° ΠΏΠΎ ΠΡΠ½ΠΈ Π±ΠΎΠ»Π΅ΡΡΠΈ ΠΊΡΠΌ Π£ΠΠΠΠ "ΠΠ»Π΅ΠΊΡΠ°Π½Π΄ΡΠΎΠ²ΡΠΊΠ°". ΠΡΠΈΡΠΊΠΈ ΡΠ΅ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΠ°Ρ
Π° ΠΊΠ»ΠΈΠ½ΠΈΡΠ½ΠΈ Π±Π΅Π»Π΅Π·ΠΈ Π½Π° ΡΠ½ΠΈΠ»Π°ΡΠ΅ΡΠ°Π»Π½Π° Π»ΠΈΠΌΠ±Π°Π»Π½Π° ΡΡΠ²ΠΎΠ»ΠΎΠ²ΠΎΠΊΠ»Π΅ΡΡΡΠ½Π° ΠΈΠ½ΡΡΡΠΈΡΠΈΠ΅Π½ΡΠΈΡ, Π°ΡΠΎΡΠΈΠΈΡΠ°Π½Π° Ρ ΡΡΠΎΡΠΈΡΠ½ΠΈ Π·Π°Π±ΠΎΠ»ΡΠ²Π°Π½ΠΈΡ Π½Π° ΠΎΡΠ½Π°ΡΠ° ΠΏΠΎΠ²ΡΡΡ
Π½ΠΎΡΡ, ΠΊΠΎΡΡΠΎ Π±Π΅ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΠ°Π½Π° ΡΡΠ΅Π· ΠΈΠΌΠΏΡΠ΅ΡΠΈΠΎΠ½Π½Π° ΡΠΈΡΠΎΠ»ΠΎΠ³ΠΈΡ. Π‘Π»Π΅Π΄ ΠΏΠΎΠ»ΡΡΠ°Π²Π°Π½Π΅ Π½Π° ΠΈΠ½ΡΠΎΡΠΌΠΈΡΠ°Π½ΠΎ ΡΡΠ³Π»Π°ΡΠΈΠ΅ Π±Π΅ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π° ΠΌΠΈΠ½ΠΈΠΌΠ°Π»Π½ΠΎ ΠΈΠ½Π²Π°Π·ΠΈΠ²ΠΈΠ° Π»ΠΈΠΌΠ±Π°Π»Π½Π° Π±ΠΈΠΎΠΏΡΠΈΡ. ΠΠΎΠ»ΡΡΠ΅Π½ΠΈΡΠ΅ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΈ Π±ΡΡ
Π° ΠΎΠ±ΡΠ°Π±ΠΎΡΠ΅Π½ΠΈ ΠΏΠΎ ΠΈΠ½ΠΎΠ²Π°ΠΏiΠΠ΅Π½ ΠΏΡΠΎΡΠΎΠΊΠΎΠ» Π·Π° ΠΊΠ»Π΅ΡΡΡΠ½ΠΈ ΠΊΡΠ»ΡΡΡΠΈ Π±Π΅Π· ΡΠΏΠΎΡΡΠ΅Π±Π° Π½Π° ΠΊΡΠ΅Π½ΠΎΠ±ΠΈΠΎΡΠΈΡΠ½ΠΈ ΠΏΡΠΎΠ΄ΡΠΊΡΠΈ. Π§Π΅ΡΠΈΡΠΈΠ½Π°Π΄Π΅ΡΠ΅Ρ Π΄Π½ΠΈ ΠΏΠΎ-ΠΊΡΡΠ½ΠΎ Π±Π΅ Π½Π°ΠΏΡΠ°Π²Π΅Π½ΠΎ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ½ΠΎ ΠΏΠΎΠΊΡΠΈΡΠΈΠ΅ Ρ Π³ΠΎΡΠΎΠ²ΠΈΡ ΡΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°Ρ. ΠΡΠΎΡΠ»Π΅Π΄ΡΠ²Π°Π½Π΅ Π½Π° ΡΡΡΡΠΎΡΠ½ΠΈΠ΅ΡΠΎ ΡΠ΅ ΠΈΠ·Π²ΡΡΡΠΈ ΡΡΠ΅Π· ΠΎΠΏΡΠΈΡΠ½Π° ΠΊΠΎΡ
Π΅ΡΠ΅Π½ΡΠ½Π° ΡΠΎΠΌΠΎΠ³ΡΠ°ΡΠΈΡ Π½Π° ΠΏΡΠ΅Π΄Π΅Π½ ΠΎΡΠ΅Π½ ΡΠ΅Π³ΠΌΠ΅Π½Ρ ΠΏΡΠ΅Π΄ΠΈ ΠΈ ΡΠ»Π΅Π΄ ΡΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΡΠ°. ΠΡΠΈΡΠ΅ΡΠΈΠΈΡΠ΅ Π· a ΡΡΠΏΠ΅Ρ
ΠΎΡ ΡΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΡΠ° Π½Π° Π΅Ρ
vivo ΡΠ°Π·ΠΌΠ½ΠΎΠΆΠ΅Π½ΠΈ ΡΡΠ²ΠΎΠ»ΠΎΠ²ΠΈ ΠΊΠ»Π΅ΡΠΊΠΈ Π²ΠΊΠ»ΡΡΠ²Π°Ρ: 1. ΠΏΡΠ»Π½Π° Π΅ΠΏΠΈΡΠ΅Π»ΠΈΠ·Π°ΡΠΈΡ Π½Π° ΡΠΎΠ³ΠΎΠ²ΠΈΡΠ½Π°ΡΠ° ΠΏΠΎΠ²ΡΡΡ
Π½ΠΎΡΡ; 2. ΡΠ΅Π΄ΡΠΊΡΠΈΡ Π½Π° Π½Π΅ΠΎΠ²Π°ΡΠΊΡΠ»Π°ΡΠΈΠ·Π°ΡΠΈΡΡΠ° ΠΈΠ»ΠΈ ΠΏΡΠ»Π½ΠΎΡΠΎ Ρ ΠΈΠ·ΡΠ΅Π·Π²Π°Π½Π΅; 3. Π²ΡΠ·ΡΡΠ°Π½ΠΎΠ²ΡΠ²Π°Π½Π΅ Π½Π° Π½ΠΎΡΠΌΠ°Π»Π½ΠΈ ΠΏΡΠΎΠ·ΡΠ°ΡΠ½ΠΎΡΡ, Π΄Π΅Π±Π΅Π»ΠΈΠ½Π° ΠΈ ΡΠ΅ΡΠ»Π΅ΠΊΡ Π½Π° ΡΠΎΠ³ΠΎΠ²ΠΈΡΠ°ΡΠ°; 4. ΠΏΠΎΠ΄ΠΎΠ±ΡΠ΅Π½ΠΈΠ΅ Π½Π° Π·ΡΠΈΡΠ΅Π»Π½Π°ΡΠ° ΠΎΡΡΡΠΎΡΠ°. Π Π΅Π·ΡΠ»ΡΠ°ΡΠΈ : ΠΡΠΈ Π²ΡΠΈΡΠΊΠΈ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΈ ΡΠ΅ Π½Π°Π±Π»ΡΠ΄Π°Π²Π° ΠΏΠΎΠ΄ΠΎΠ±ΡΠ΅Π½ΠΈΠ΅ Π½Π° ΠΊΠ»ΠΈΠ½ΠΈΡΠ½Π°ΡΠ° ΠΊΠ°ΡΡΠΈΠ½Π° ΠΈ ΡΡΠ±Π΅ΠΊΡΠΈΠ²Π½ΠΈΡΠ΅ ΠΎΠΏΠ»Π°ΠΊΠ²Π°Π½ΠΈΡ. ΠΡΠΈ ΡΡΠ!VΡ ΠΎΡ ΠΈΠ·ΡΠ»Π΅Π΄Π²Π°Π½ΠΈΡΠ΅ Π±ΡΡ
Π° ΠΈΠ·ΠΏΡΠ»Π½Π΅Π½ΠΈ ΡΠ΅ΡΠΈΡΠΈΡΠ΅ ΠΊΡΠΈΡΠ΅ΡΠΈΡ Π·Π° ΡΡΠΏΠ΅ΡΠ½Π° ΡΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡ. ΠΡΠΈ Π΅Π΄ΠΈΠ½ ΠΎΡ ΡΠ»ΡΡΠ°ΠΈΡΠ΅ Π½Π΅ Π±Π΅ ΠΎΡΡΠ΅ΡΠ΅Π½ΠΎ ΠΏΠΎΠ΄ΠΎΠ±ΡΠ΅Π½ΠΈΠ΅ Π² Π·ΡΠΈΡΠ΅Π»Π½Π°ΡΠ° ΠΎΡΡΡΠΎΡΠ°, ΠΏΠΎΡΠ°Π΄ΠΈ Π·Π°ΡΡΠ³Π°Π½Π΅ Π½Π° Π·ΡΠΈΡΠ΅Π»Π½ΠΈΡ Π½Π΅ΡΠ² ΠΎΡ ΡΡΠΌΠΎΡΠ΅Π½ ΠΏΡΠΎΡΠ΅Ρ. ΠΠ΅ ΡΠ΅ Π½Π°Π±Π»ΡΠ΄Π°Π²Π°Ρ
Π° ΡΠ΅Π°ΠΊΡΠΈΠΈ Π½Π° ΠΎΡΡ
Π²ΡΡΠ»ΡΠ½Π΅ Π½Π° ΡΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°ΡΠ°. ΠΠΈΠΌΠ±Π°Π»Π½Π°ΡΠ° Π±ΠΈΠΎΠΏΡΠΈΡ Π½Π΅ ΠΈΠ½Π΄ΡΡΠΈΡΠ° ΠΈΠ½ΡΡΡΠΈΡΠΈΠ΅Π½ΡΠΈΡ Π½Π° Π΄ΠΎΠ½ΠΎΡΠ½ΠΎΡΠΎ ΠΎΠΊΠΎ. ΠΠ·Π²ΠΎΠ΄ΠΈ : Π’ΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΡΠ° Π½Π° Π΅Ρ
vivo ΡΠ°Π·ΠΌΠ½ΠΎΠΆΠ΅Π½ΠΈ Π°Π²ΡΠΎΠ»ΠΎΠΆΠ½ΠΈ Π»ΠΈΠΌΠ±Π°Π»Π½ΠΈ ΡΡΠ²ΠΎΠ»ΠΎΠ²ΠΈ ΠΊΠ»Π΅ΡΠΊΠΈ Π΅ Π΅ΡΠ΅ΠΊΡΠΈΠ²Π΅Π½ ΠΈ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ΅Π½ ΠΌΠ΅ΡΠΎΠ΄ Π·Π° Π²ΡΠ·ΡΡΠ°Π½ΠΎΠ²ΡΠ²Π°Π½Π΅ Π½Π° ΠΎΡΠ½Π°ΡΠ° ΠΏΠΎΠ²ΡΡΡ
Π½ΠΎΡΡ, ΠΊΠΎΠΉΡΠΎ ΠΌΠΎΠΆΠ΅ Π΄Π° Π±ΡΠ΄Π΅ ΠΏΡΠΈΠ»ΠΎΠΆΠ΅Π½ ΠΏΡΠΈ ΡΠ°Π·Π»ΠΈΡΠ½ΠΈ Π·Π°Π±ΠΎΠ»ΡΠ²Π°Π½ΠΈΡ, Π°ΡΠΎΡΠΈΠΈΡΠ°Π½ΠΈ Ρ Π»ΠΈΠΌΠ±Π°Π»Π½Π° ΡΡΠ²ΠΎΠ»ΠΎΠ²ΠΎΠΊΠ»Π΅ΡΡΡΠ½Π° ΠΈΠ½ΡΡΡΠΈΡΠΈΠ΅Π½ΡΠΈΡ.Purpose: To investigate the application of autologous ex vivo expanded limbal stem cell transplantation in the management of ocular surface disease. Materials and methods: Autologous ex vivo expanded stem cells were transplanted to four patients with mean age 56.5 years from the Depmtment of Ophthalmology, University Hospital Alexandrovska. All patients presented signs of unilateral limbal stem cell deficiency, associated with trophic disease of the ocular surface, which was demonstrated on impression cytology. After informed consent was obtained a minimally invasive limbal biopsy was performed. The limbal materials were cultured using a novel protocol without additional xenobiotic products. The grafts were transplanted after fourteen days. Anterior segment optical coherence tomography before and after the intervention was used for assessment of the condition. Success of the procedure was defined as 1. Complete epithelialization of the corneal surface, 2. partial or complete reduction of neovascularization, 3. achieving normal corneal transparency, thickness and reflex, 4. visual acuity improvement. Results: Clinical recovery was observed in all patients, as well as improvement of subjective ocular comfort. In three of the cases all four success criteria were met. Visual acuity of one patient did not change, due to neoplastic process, pervading the optic nerve. No graft rejection reactions were observed. Limbal biopsy did not induce limbal stem cell deficiency in the donor eye. Conclusion: Transplantation of autologous ex vivo expanded limbal stem cells is an effective and safe method for ocular surface reconstruction, which can be applied in different conditions, associated with limbal stem cell deficiency
Reentrant Superconductivity and Superconducting Critical Temperature Oscillations in F/S/F trilayers of Cu41Ni59/Nb/Cu41Ni59 Grown on Cobalt Oxide
Ferromagnet/Superconductor/Ferromagnet (F/S/F) trilayers constitute the core
of a superconducting spin valve. The switching effect of the spin valve is
based on interference phenomena occurring due to the proximity effect at the
S/F interfaces. A remarkable effect is only expected if the core structure
exhibits strong critical temperature oscillations, or most favorable, reentrant
superconductivity, when the thickness of the ferromagnetic layer is increased.
The core structure has to be grown on an antiferromagnetic oxide layer (or such
layer to be placed on top) to pin by exchange bias the
magnetization-orientation of one of the ferromagnetic layers. In the present
paper we demonstrate that this is possible, keeping the superconducting
behavior of the core structure undisturbed.Comment: 22 pages, 12 figures, 1 tabl
Re-entrant superconductivity in Nb/Cu(1-x)Ni(x) bilayers
We report on the first observation of a pronounced re-entrant
superconductivity phenomenon in superconductor/ferromagnetic layered systems.
The results were obtained using a superconductor/ferromagnetic-alloy bilayer of
Nb/Cu(1-x)Ni(x). The superconducting transition temperature T_{c} drops sharply
with increasing thickness d_{CuNi} of the ferromagnetic layer, until complete
suppression of superconductivity is observed at d_{CuNi}= 4 nm. Increasing the
Cu(1-x)Ni(x) layer thickness further, superconductivity reappears at
d_{CuNi}=13 nm. Our experiments give evidence for the pairing function
oscillations associated with a realization of the quasi-one dimensional
Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) like state in the ferromagnetic layer.Comment: 3 pages, 3 figures, REVTEX4/twocolum
Transplantation of ex vivo expanded limbal stem cells in neurotrophic keratopathy - a case report
ΠΡΠ΅Π΄ΡΡΠ°Π²ΡΠΌΠ΅ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅Π½ ΡΠ»ΡΡΠ°ΠΉ Π½Π° Π½Π΅Π²ΡΠΎΡΡΠΎΡΠΈΡΠ½Π° ΠΊΠ΅ΡΠ°ΡΠΎΠΏΠ°ΡΠΈΡ, Π°ΡΠΎΡΠΈΠΈΡΠ°Π½Π° Ρ ΡΠ½ΠΈΠ»Π°ΡΠ΅ΡΠ°Π»Π½Π° Π»ΠΈΠΌΠ±Π°Π»Π½Π° ΡΡΠ²ΠΎΠ»ΠΎΠ²ΠΎΠΊΠ»Π΅ΡΡΡΠ½Π° ΠΈΠ½ΡΡΡΠΈΡΠΈΠ΅Π½ΡΠΈΡ. ΠΠ·Π²ΡΡΡΠ΅Π½Π° Π±Π΅ ΡΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡ Π½Π° Π°Π²ΡΠΎΠ»ΠΎΠΆΠ½ΠΈ Π΅Ρ
vivo ΡΠ°Π·ΠΌΠ½ΠΎΠΆΠ΅Π½ΠΈ Π»ΠΈΠΌΠ±Π°Π»Π½ΠΈ ΡΡΠ²ΠΎΠ»ΠΎΠ²ΠΈ ΠΊΠ»Π΅ΡΠΊΠΈ. ΠΠ·ΠΏΠΎΠ»Π·Π²Π°Π½ΠΈΡΠ΅ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΡΠ½ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΈ Π²ΠΊΠ»ΡΡΠ²Π°Ρ Π±ΠΈΠΎΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΡ, ΠΌΠΈΠΊΡΠΎΠ±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ½ΠΎ ΠΈΠ·ΡΠ»Π΅Π΄Π²Π°Π½Π΅ Π½Π° ΡΠ΅ΠΊΡΠ΅Ρ ΠΎΡ ΠΊΠΎΠ½ΡΠ½ΠΊΡΠΈΠ²Π° ΠΈ ΡΠΎΠ³ΠΎΠ²ΠΈΡΠ½Π° Π»Π΅Π·ΠΈΡ, ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ°Π·Π½ΠΎ Π²Π΅ΡΠΈΠΆΠ½Π° ΡΠ΅Π°ΠΊΡΠΈΡ Π½Π° ΠΏΡΠ΅Π΄Π½ΠΎΠΊΠ°ΠΌΠ΅ΡΠ½Π° ΡΠ΅ΡΠ½ΠΎΡΡ Π·Π° Ρ
Π΅ΡΠΏΠ΅Ρ Π²ΠΈΡΡΡΠ½Π° ΠΠΠ, ΠΎΠΏΡΠΈΡΠ½Π° ΠΊΠΎΡ
Π΅ΡΠ΅Π½ΡΠ½Π° ΡΠΎΠΌΠΎΠ³ΡΠ°ΡΠΈΡ Π½Π° ΠΏΡΠ΅Π΄Π΅Π½ ΠΎΡΠ΅Π½ ΡΠ΅Π³ΠΌΠ΅Π½Ρ. ΠΠΎΡΠ°Π΄ΠΈ Π»ΠΈΠΏΡΠ°ΡΠ° Π½Π° ΠΏΠΎΠ΄ΠΎΠ±ΡΠ΅Π½ΠΈΠ΅ ΡΠ»Π΅Π΄ ΠΊΠΎΠ½ΡΠ΅ΡΠ²Π°ΡΠΈΠ²Π½ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΠ΅ ΡΠ΅ ΠΏΡΠΎΠ²Π΅Π΄Π΅ ΠΌΠΈΠ½ΠΈΠΌΠ°Π»Π½ΠΎ ΠΈΠ½Π²Π°Π·ΠΈΠ²ΠΈΠ° Π»ΠΈΠΌΠ±Π°Π»Π½Π° Π±ΠΈΠΎΠΏΡΠΈΡ ΠΈ ΡΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡ Π½Π° Π°ΠΌΠ½ΠΈΠΎΡΠΈΡΠ½Π° ΠΌΠ΅ΠΌΠ±ΡΠ°Π½Π°. ΠΠΎΠ»ΡΡΠ΅Π½ΠΈΡΠ΅ Π°Π²ΡΠΎΠ»ΠΎΠΆΠ½ΠΈ ΡΡΠ²ΠΎΠ»ΠΎΠ²ΠΈ ΠΊΠ»Π΅ΡΠΊΠΈ Π±ΡΡ
Π° ΡΠ°Π·ΠΌΠ½ΠΎΠΆΠ΅Π½ΠΈ Π΅Ρ
vivo ΠΏΠΎ ΠΈΠ½ΠΎΠ²Π°ΡΠΈΠ²Π΅Π½ ΠΏΡΠΎΡΠΎΠΊΠΎΠ» Π±Π΅Π· ΠΊΡΠ΅Π½ΠΎΠ±ΠΈΠΎΡΠΈΡΠ½ΠΈ ΠΏΡΠΎΠ΄ΡΠΊΡΠΈ Ρ ΠΏΡΠ΅Π½ΠΎΡΠΈΡΠ΅Π» Π½Π°ΡΠΈΠ²Π½Π° Π°ΠΌΠ½ΠΈΠΎΡΠΈΡΠ½Π° ΠΌΠ΅ΠΌΠ±ΡΠ°Π½Π°. Π‘Π»Π΅Π΄ ΠΏΠΎΠ»ΡΡΠ°Π²Π°Π½Π΅ Π½Π° Π΄ΠΎΡΡΠ°ΡΡΡΠ½ΠΎ Π΅ΠΏΠΈΡΠ΅Π»Π½ΠΈ ΡΠ»ΠΎΠ΅Π²Π΅ Π΅Ρ
vivo, ΡΠ΅ Π½Π°ΠΏΡΠ°Π²ΠΈ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ½ΠΎ ΠΏΠΎΠΊΡΠΈΡΠΈΠ΅ Ρ Π³ΠΎΡΠΎΠ²ΠΈΡ ΡΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°Ρ. ΠΠΎΡΡΠΎΠΏΠ΅ΡΠ°ΡΠΈΠ²Π½ΠΎ ΡΠΎΠ³ΠΎΠ²ΠΈΡΠ½Π°ΡΠ° ΠΏΠΎΠ²ΡΡΡ
Π½ΠΎΡΡ Π±Π΅ Π½Π°ΠΏΡΠ»Π½ΠΎ Π΅ΠΏΠΈΡΠ΅Π»ΠΈΠ·ΠΈΡΠ°Π½Π° ΠΈ Π·ΡΠΈΡΠ΅Π»Π½Π°ΡΠ° ΠΎΡΡΡΠΎΡΠ° ΡΠ΅ ΠΏΠΎΠ΄ΠΎΠ±ΡΠΈ Π·Π½Π°ΡΠΈΡΠ΅Π»Π½ΠΎ. ΠΠ°Π±Π»ΡΠ΄Π°Π²Π° ΡΠ΅ ΡΠ΅Π³ΡΠ΅Ρ Π½Π° Π½Π΅ΠΎΠ²Π°ΡΠΊΡΠ»Π°ΡΠ½ΠΈΡΠ΅ ΡΡΠ΄ΠΎΠ²Π΅ ΠΈ Π²ΡΠΈΡΠΊΠΈ ΡΠΈΠΌΠΏΡΠΎΠΌΠΈ Π½Π° Ρ
ΡΠΎΠ½ΠΈΡΠ½ΠΎ Π²ΡΠ·ΠΏΠ°Π»Π΅Π½ΠΈΠ΅ ΡΠ΅ ΠΎΠ±Π»Π΅ΠΊΡΠΈΡ
Π°. Π’ΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°ΡΠΈΡΡΠ° Π½Π° Π°Π²ΡΠΎΠ»ΠΎΠΆΠ½ΠΈ Π΅Ρ
vivo ΡΠ°Π·ΠΌΠ½ΠΎΠΆΠ΅Π½ΠΈ Π»ΠΈΠΌΠ±Π°Π»Π½ΠΈ ΡΡΠ²ΠΎΠ»ΠΎΠ²ΠΈ ΠΊΠ»Π΅ΡΠΊΠΈ Ρ ΠΏΡΠ΅Π½ΠΎΡΡΠΈΡΠ΅Π» Π°ΠΌΠ½ΠΈΠΎΡΠΈΡΠ½Π° ΠΌΠ΅ΠΌΠ±ΡΠ°Π½Π° ΠΌΠΎΠΆΠ΅ Π΄Π° Π±ΡΠ΄Π΅ Π΅ΡΠ΅ΠΊΡΠΈΠ²Π΅Π½ ΠΌΠ΅ΡΠΎΠ΄ Π·Π° Π»Π΅ΡΠ΅Π½ΠΈΠ΅ Π½Π° Π½Π΅Π²ΡΠΎΡΡΠΎΡΠΈΡΠ½Π° ΠΊΠ΅ΡΠ°ΡΠΎΠΏΠ°ΡΠΈΡ, Π°ΡΠΎΡΠΈΠΈΡΠ°Π½Π° Ρ Π»ΠΈΠΌΠ±Π°Π»Π½Π° ΡΡΠ²ΠΎΠ»ΠΎΠ²ΠΎΠΊΠ»Π΅ΡΡΡΠ½Π° ΠΈΠ½ΡΡΡΠΈΡΠΈΠ΅Π½ΡΠΈΡ.We present a case of neurotrophic keratopathy associated with limbal stem cell deficiency, treated by transplantation of autologous ex vivo expanded limbal stem cells. The applied diagnostic methods include slit-lamp examination, microbiological samples from conjunctiva and corneal lesion, polymerase chain reaction of aqueous humor for herpes virus DNA, anterior segment optical coherence tomography. Since no improvement was observed with conservative treatment, a minimally invasive limbal biopsy and transplantation of amniotic membrane were performed. The collected autologous limbal stem cells were expanded ex vivo using an innovative protocol without xenobiotic products on intact amniotic membrane. After sufficient epithelial layers were obtained ex vivo the graft was transplanted on the ocular surface of the patient. Postoperatively the corneal surface was completely covered by epithelium, visual acuity improved significantly. Regression of neovascular vessels was observed and all symptoms of chronic inflammation were alleviated. Transplantation of ex vivo expanded limbal stem cells on amniotic membrane can be an effective treatment method for neurotrophic keratopathy, associated with limbal stem cell deficiency
Memory Effect and Triplet Pairing Generation in the Superconducting Exchange Biased Co/CoOx/Cu41Ni59/Nb/Cu41Ni59 Layered Heterostructure
We fabricated a nanolayered hybrid superconductor-ferromagnet spin-valve
structure, the resistive state of which depends on the preceding magnetic field
polarity. The effect is based on a strong exchange bias (about -2 kOe) on a
diluted ferromagnetic copper-nickel alloy and generation of a long range odd in
frequency triplet pairing component. The difference of high and low resistance
states at zero magnetic field is 90% of the normal state resistance for a
transport current of 250 {\mu}A and still around 42% for 10 {\mu}A. Both logic
states of the structure do not require biasing fields or currents in the idle
mode.Comment: 9 pages, 4 figures, Accepted to Applied Physics Letter
Experimental and theoretical analysis of the upper critical field in FSF trilayers
The upper critical magnetic field H_{c2} in thin-film FSF trilayer spin-valve
cores is studied experimentally and theoretically in geometries perpendicular
and parallel to the heterostructure surface. The series of samples with
variable thicknesses of the bottom and of the top Cu_{41}Ni_{59} F-layers are
prepared in a single run, utilizing a wedge deposition technique. The critical
field H_{c2} is measured in the temperature range K and for magnetic
fields up to 9 Tesla. A transition from oscillatory to reentrant behavior of
the superconducting transition temperature versus F-layers thickness, induced
by an external magnetic field, has been observed for the first time. In order
to properly interpret the experimental data, we develop a quasiclassical
theory, enabling one to evaluate the temperature dependence of the critical
field and the superconducting transition temperature for an arbitrary set of
the system parameters. A fairly good agreement between our experimental data
and theoretical predictions is demonstrated for all samples, using a single set
of fit parameters. This confirms adequacy of the
Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) physics in determining the unusual
superconducting properties of the studied Cu_{41}Ni_{59}/Nb/Cu_{41}Ni_{59}
spin-valve core trilayers.Comment: 16 pages, 7 figures; published versio
Objective Assessment of Meibomian Gland Loss and Investigation of a Correlation with Non-Invasive Tear Break up Time using OCULUS Keratograph 5m.
Π‘Π»ΡΠ·Π½ΠΈΡΡ ΡΠΈΠ»ΠΌ ΡΠ΅ ΡΡΡΡΠΎΠΈ ΠΎΡ Π½ΡΠΊΠΎΠ»ΠΊΠΎ ΡΠ»ΠΎΡ- ΠΌΡΠΊΠΎΠ·Π½Π° ΠΈ Π²ΠΎΠ΄Π½Π° ΡΠ°Π·Π°, ΠΏΡΠΎΠ΄ΡΡΠΈΡΠ°Π½ΠΈ ΡΡΠΎΡΠ²Π΅ΡΠ½ΠΎ ΠΎΡ Π³ΠΎΠ±Π»Π΅ΡΠΎΠ²ΠΈΡΠ΅ ΠΊΠ»Π΅ΡΠΊΠΈ ΠΈ ΡΠ»ΡΠ·Π½ΠΈΡΠ΅ ΠΆΠ»Π΅Π·ΠΈ Ρ Π½Π°Π΄Π»Π΅ΠΆΠ°Ρ ΠΌΠ°ΡΠ»Π΅Π½ ΡΠ»ΠΎΠΉ, ΡΠΈΠΈΡΠΎ Π»ΠΈΠΏΠΈΠ΄Π½ΠΈ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΈ ΡΠ΅ ΡΠ΅ΠΊΡΠ΅ΡΠΈΡΠ°Ρ ΠΎΡ ΠΌΠ΅ΠΉΠ±ΠΎΠΌΠΈΠ΅Π²ΠΈΡΠ΅ ΠΆΠ»Π΅Π·ΠΈ. ΠΡΠΈ ΡΠΈΠ½Π΄ΡΠΎΠΌΠ° ΡΡΡ
ΠΎ ΠΎΠΊΠΎ ΡΠ΅ Π½Π°Π±Π»ΡΠ΄Π°Π²Π° ΡΠ²ΡΠ΅ΠΆΠ΄Π°Π½Π΅ Π² ΡΠ»ΡΠ·Π½ΠΈΡ ΡΠΈΠ»ΠΌ, ΠΏΡΠ΅Π΄ΠΈΠ·Π²ΠΈΠΊΠ°Π½ΠΎ ΠΎΡ Π΄Π΅ΡΠΈΡΠΈΡ Π½Π° ΡΠ»ΡΠ·Π½Π° ΡΠ΅ΡΠ½ΠΎΡΡ ΠΈΠ»ΠΈ ΠΏΡΠ΅ΠΊΠΎΠΌΠ΅ΡΠ½ΠΎΡΠΎ ΠΉ ΠΈΠ·ΠΏΠ°ΡΡΠ²Π°Π½Π΅. Π‘ΡΠΈΡΠ° ΡΠ΅, ΡΠ΅ ΠΌΠ΅ΠΉΠ±ΠΎΠΌΠΈΠ΅Π²Π°ΡΠ° Π΄ΠΈΡΡΡΠ½ΠΊΡΠΈΡ Π΅ ΠΎΡΠ½ΠΎΠ²Π½Π° ΠΏΡΠΈΡΠΈΠ½Π° Π·Π° ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ Π½Π° ΡΡΡ
ΠΎ ΠΎΠΊΠΎ, ΠΊΠΎΡΡΠΎ ΠΌΠΎΠΆΠ΅ Π΄Π° Π΄ΠΎΠ²Π΅Π΄Π΅ Π΄ΠΎ Π½Π΅ΡΡΠ°Π±ΠΈΠ»Π½ΠΎΡΡ Π½Π° ΡΠ»ΡΠ·Π½ΠΈΡ ΡΠΈΠ»ΠΌ, ΡΠ²ΡΠ΅ΠΆΠ΄Π°Π½Π΅ Π½Π° ΠΏΠΎΠ²ΡΡΡ
Π½ΠΎΡΡΠ½ΠΈΡ Π΅ΠΏΠΈΡΠ΅Π», Ρ
ΡΠΎΠ½ΠΈΡΠ΅Π½ Π±Π»Π΅ΡΠ°ΡΠΈΡ, ΡΡΠ±Π΅ΠΊΡΠΈΠ²Π΅Π½ Π΄ΠΈΡΠΊΠΎΠΌΡΠΎΡΡ ΠΈ Π½Π΅ΡΡΡΠΏΠΈΠΌΠΎΡΡ ΠΏΡΠΈ Π½ΠΎΡΠ΅Π½Π΅ Π½Π° ΠΊΠΎΠ½ΡΠ°ΠΊΡΠ½ΠΈ Π»Π΅ΡΠΈ. Π¦Π΅Π» Π½Π° Π½Π°ΡΡΠΎΡΡΠ΅ΡΠΎ ΠΈΠ·ΡΠ»Π΅Π΄Π²Π°Π½Π΅ Π΅ Π΄Π° ΡΠ΅ ΠΈΠ·ΡΠ»Π΅Π΄Π²Π° ΡΡΡΡΠΎΡΠ½ΠΈΠ΅ΡΠΎ Π½Π° ΠΌΠ΅ΠΉΠ±ΠΎΠΌΠΈΠ΅Π²ΠΈΡΠ΅ ΠΆΠ»Π΅Π·ΠΈ Π½Π° ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΈ Π² ΡΠ°Π·Π»ΠΈΡΠ½ΠΈ Π²ΡΠ·ΡΠ°ΡΡΠΎΠ²ΠΈ Π³ΡΡΠΏΠΈ ΠΊΠ°ΡΠΎ ΡΠ΅ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΠΈ ΡΡΠ΅Π΄Π½Π°ΡΠ° ΠΏΡΠΎΡΠ΅Π½ΡΠ½Π° Π»ΠΈΠΏΡΠ° Π½Π° ΠΌΠ΅ΠΉΠ±ΠΎΠΌΠΈΠ΅Π²ΠΈ ΠΆΠ»Π΅Π·ΠΈ Π½Π° Π³ΠΎΡΠ΅Π½ ΠΈ Π΄ΠΎΠ»Π΅Π½ ΠΊΠ»Π΅ΠΏΠ°Ρ. ΠΠ° ΡΠ΅ Π½Π°ΠΏΡΠ°Π²ΠΈ ΠΎΡΠ΅Π½ΠΊΠ° Π·Π° Π½Π°Π»ΠΈΡΠΈΠ΅ΡΠΎ Π½Π° ΠΊΠΎΡΠ΅Π»Π°ΡΠΈΠΎΠ½Π½Π° Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡ ΠΌΠ΅ΠΆΠ΄Ρ Π»ΠΈΠΏΡΠ°ΡΠ° Π½Π° ΠΌΠ΅ΠΉΠ±ΠΎΠΌΠΈΠ΅Π²ΠΈ ΠΆΠ»Π΅Π·ΠΈ ΠΈ ΠΈΠ½Π΄ΠΈΡΠ΅ΠΊΡΠ½ΠΎΡΠΎ Π²ΡΠ΅ΠΌΠ΅ Π·Π° ΡΠ°Π·ΠΊΡΡΠ²Π°Π½Π΅ Π½Π° ΡΠ»ΡΠ·Π½ΠΈΡ ΡΠΈΠ»ΠΌ. ΠΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΈ ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΈ: ΠΠ° ΠΈΠ·ΠΌΠ΅ΡΠ²Π°Π½Π΅ Π½Π° ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»ΠΈΡΠ΅ ΡΠ΅ ΠΈΠ·ΠΏΠΎΠ»Π·Π²Π° ΠΠΎΡΠ½Π΅Π°Π»Π΅Π½ ΠΊΠ΅ΡΠ°ΡΠΎΠ³ΡΠ°Ρ Oculus 5m. ΠΠ·ΡΠ»Π΅Π΄Π²Π°Π½ΠΈ ΡΠ° 285 ΠΎΡΠΈ Π½Π° ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΈ Π½Π° Π²ΡΠ·ΡΠ°ΡΡ ΠΎΡ 20 Π΄ΠΎ 90 Π³ΠΎΠ΄ΠΈΠ½ΠΈ. ΠΠΎΠ»ΡΡΠ΅Π½ΠΈΡΠ΅ ΠΌΠ΅ΠΉΠ±ΠΎΠ³ΡΠ°ΡΡΠΊΠΈ ΡΠ½ΠΈΠΌΠΊΠΈ ΡΠ° ΠΎΠ±ΡΠ°Π±ΠΎΡΠ΅Π½ΠΈ Ρ ΠΏΠΎΠΌΠΎΡΡΠ° Π½Π° ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΠ·ΠΈΡΠ°Π½ ΡΠΎΡΡΡΠ΅Ρ Image J. ΠΠ°Π½Π½ΠΈΡΠ΅ ΡΠ° ΠΎΠ±ΡΠ°Π±ΠΎΡΠ΅Π½ΠΈ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈ ΠΏΠΎ ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅ Π½Π° ΠΊΠΎΡΠ΅Π»Π°ΡΠΈΠΎΠ½Π½Π° Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡ (ΠΊΠΎΠ΅ΡΠΈΡΠΈΠ΅Π½Ρ Π½Π° ΠΠΈΡΡΡΡΠ½), Π»ΠΈΠ½Π΅ΠΉΠ½Π° ΡΠ΅Π³ΡΠ΅ΡΠΈΡ ANOVA Ρ ΠΏΠΎΠΌΠΎΡΡΠ° Π½Π° IΠΠ SPSS v 19.0.0. Π Π΅Π·ΡΠ»ΡΠ°ΡΠΈ ΠΈ ΠΈΠ·Π²ΠΎΠ΄ΠΈ: Π£ΡΡΠ°Π½ΠΎΠ²Π΅Π½Π° Π΅ ΡΠ»Π°Π±Π° ΠΊΠΎΡΠ΅Π»Π°ΡΠΈΠΎΠ½Π½Π° Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡ ΠΌΠ΅ΠΆΠ΄Ρ ΠΈΠ·ΡΠ»Π΅Π΄Π²Π°Π½ΠΈΡΠ΅ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»ΠΈ Π·Π°Π³ΡΠ±Π° Π½Π° ΠΌΠ΅ΠΉΠ±ΠΎΠΌΠΈΠ΅Π²ΠΈ ΠΆΠ»Π΅Π·ΠΈ ΠΈ Π½Π΅ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½Π° Π²ΡΠ΅ΠΌΠ΅ Π½Π° ΡΠ°Π·ΠΊΡΡΠ²Π°Π½Π΅ Π½Π° ΡΠ»ΡΠ·Π½ΠΈΡ ΡΠΈΠ»ΠΌ. ΠΡΠ·ΡΠ°ΡΡΡΠ° ΡΠ΅ ΠΎΠΊΠ°Π·Π²Π° ΡΠ΅ΡΠ°Π²Π°Ρ ΡΠ°ΠΊΡΠΎΡ Π·Π° ΡΡΡΡΠΎΡΠ½ΠΈΠ΅ΡΠΎ Π½Π° ΠΌΠ΅ΠΉΠ±ΠΎΠΌΠΈΠ΅Π²ΠΈΡΠ΅ ΠΆΠ»Π΅Π·ΠΈ, Π΄ΠΎΠΊΠ°ΡΠΎ ΠΏΠΎΠ»ΡΡ Π½Π΅ ΠΎΠΊΠ°Π·Π²Π° ΡΠΎΠ»ΠΊΠΎΠ²Π° Π³ΠΎΠ»ΡΠΌΠΎ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅. ΠΡΠ²Π΅Π½ ΡΠΎΠ²Π° ΡΡΡΠ΅ΡΡΠ²ΡΠ²Π° ΡΠ°Π·Π»ΠΈΠΊΠ° ΠΌΠ΅ΠΆΠ΄Ρ Π·Π°Π³ΡΠ±Π°ΡΠ° Π½Π° ΠΆΠ»Π΅Π·ΠΈ Π½Π° Π³ΠΎΡΠ΅Π½ ΠΈ Π΄ΠΎΠ»Π΅Π½ ΠΊΠ»Π΅ΠΏΠ°Ρ, Π²ΡΠΏΡΠ΅ΠΊΠΈ ΡΡΡΠ°Π½ΠΎΠ²Π΅Π½Π°ΡΠ° Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡ ΠΌΠ΅ΠΆΠ΄Ρ Π΄Π²Π°ΡΠ° ΠΊΠ»Π΅ΠΏΠ°ΡΠ°.The tear film consists of mucus and aqueous phase produced by the Goblet cells and tear glands and overlaying oily layer which is result of the function of Meibomian glands. The tear film in Dry eye syndrome is damaged either through tear deficiency or through its excessive evaporation. It is considered that the Meibomian gland dysfunction is the main reason for Dry eye disease and can result in tear film instability, damage of the epithelial surface cells, chronic blepharitis, subjective discomfort, contact lenses intolerance and others.
Aim of the current study is the investigation of Meibomian glands in patients of different ages by determination of the percent Meibomian gland loss (MGL) for the upper and lower eyelid and the correlation analysis between MGL and non-invasive tear break up time (NIBUT).
Materials and methods: The Meibomian gland loss and NIBUT were determined by the corneal Keratograph Oculus 5m. 285 eyes were included of patients ranging from 20 to 90 years of age. The meibographic images were subsequently analyzed with Image J software. The statistical analysis regarding Pearson correlation, linear regression and ANOVA was performed with IBM SPSS v.19.0.0
Results and conclusions: A weak but statistically significant correlation was determined between Meibomian glands loss and the non-invasive tear break up time. The patients` age turns out to be the most important factor, while the gender is of no such significance. Besides a difference was estimated between the percent of lower and upper eyelid Meibomian gland loss although there is a correlation between them
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