The unmet need for certification of vision impairment for people accessing a national primary care-based low vision rehabilitation service.

Background: The certificate of vision impairment has an important role in enabling access to support for people with vision impairment (VI) and the provision of epidemiological data regarding sight loss. However, the rates of certification may not accurately reflect the number of people living with certifiable VI.

Methods: Observational data from a national primary care low vision rehabilitation service between 1 April 2021 and 31 March 2022 were analysed.

Ecological status of a freshwater tectonic lake of the indo-burmese province: Implications for livelihood development.

Tectonic lakes are among the most geologically fascinating and environmentally versatile hydrobiological systems found on the earth's surface. We conducted a study on the limnology of Tasek Lake, a tectonic lake located in the Indo-Burma Province of the South Asian region. Physico-chemical parameters of the lake's water along with its plankton were considered for the study.

Comparison of intraocular lens power calculation methods after myopic laser refractive surgery without previous refractive surgery data.

Purpose: To compare the accuracy of intraocular lens (IOL) power calculation methods for post-myopic excimer laser surgery patients without previous refractive surgery data using the Holladay IOL Consultant Program and the American Society of Cataract and Refractive Surgery (ASCRS) IOL Power Calculator.

Setting: Wang Vision Cataract and LASIK Center, Nashville, Tennessee, USA.

Design: Case series.

Transitioning to optimized correction with the WaveLight ALLEGRETTO WAVE: case distribution, visual outcomes, and wavefront aberrations.

Purpose: To describe the outcomes of the first 285 eyes receiving LASIK or photorefractive keratectomy (PRK) using an optimized ablation profile at a refractive surgery practice experienced with customized ablation.

Methods: A retrospective chart review was performed on all patients who underwent refractive treatments using the ALLEGRETTO WAVE Eye-Q platform (Alcon Laboratories Inc) between September 2008 and July 2009. Patients were divided into LASIK and PRK treatments, then further subdivided based on pre- and targeted postoperative refraction.

Modified dipicolinic acid ligands for sensitization of europium(III) luminescence.

The effect of substitution at the 4 and 3,5 positions in the pyridine ring of europium(III) pyridine-2,6-dicarboxylate complexes has been investigated with particular emphasis on sensitization of the Eu3+ ion. Sensitization of the Eu3+ 615-nm emission was achieved through excitation of the ligands in which the 4 substituent was -H, -OH, and -Cl and the 3,5 position was -H. In these cases, the ligand-to-Eu3+ ratio was confirmed as being 3:1.