Tilt and decentration of the crystalline lens in ultra-high myopia with cataract and its influencing factors: A study based on CASIA2'.

Objective: This study aims to examine the characteristics and influencing factors of crystalline lens tilt and decentration in ultra-high myopic cataract patients, as measured by the CASIA2.

Methods And Analysis: 60 eyes scheduled for cataract surgery with an axial length (AL) ≥ 28 mm were included. The IOLMaster700 was utilized to measure AL and the white-to-white (WTW) distance.

Effect of capsular tension ring on the refractive outcomes of patients with extreme high axial myopia after phacoemulsification.

Purpose: The aim of the study is to evaluate the effect of capsular tension ring (CTR) implantation following cataract surgery on the refractive outcomes of patients with extreme high axial myopia.

Methods: Sixty eyes (with an axial length of ≥26 mm) were retrospectively reviewed and classified into two groups: CTR group (n = 30), which underwent CTR implantation following phacoemulsification, and control group (n = 30), which did not undergo CTR implantation. Intraocular lens (IOL) calculation was performed using Barrett Universal II (UII), Haigis, and SRK/T formulas.

Two new triterpenoid saponins from the root of Ilex pubescens.

Two new triterpenoid saponins, named ilexsaponins B(4) (1) and C (2), have been isolated from the roots of Ilex pubescens. Their structures have been established as ilexgenin B 3-O-alpha-L-arabinopyranosyl-(2-->1)-beta-D-glucopyranosyl-(2-->1)-beta-D-xylopyranoside (1) and 3-O-beta-D-xylopyranosyl spathodic acid 28-beta-D-glucopyranosyl ester (2) by means of spectral and chemical methods.

Hydroxylation of 3-nitrotyrosine and its derivatives by gamma irradiation.

Radiation-induced hydroxylation of 3-nitrotyrosine (3-NY) and its derivatives in aqueous solution were investigated as a function of gamma-radiation dose. Irradiated 3-NY, 3-nitrotyrosine ethyl ester (3-NYE) and 3-NY containing peptide Gly-nitroTyr-Gly were separated and analyzed with reverse-phase HPLC and UV-Vis absorption spectroscopy. The structures of the hydroxylated products were confirmed by electrospray ionization mass spectrometry and (1)H-NMR spectrometry.