A test for crystalline lens biocompatibility

Biocompatibility of crystalline opal nanoparticles

BACKGROUND Silica nanoparticles are being developed as a host of biomedical and biotechnological applications. For this reason, there are more studies about biocompatibility of silica with amorphous and crystalline structure. Except hydrated silica (opal), despite is presents directly and indirectly in humans. Two sizes of crystalline opal nanoparticles were investigated in this work under crit...

Crystalline lens disorders

• Vol 10 • March 2008 Ocular Features of Marfan Syndrome The main ocular features of Marfan syndrome, all of which can result in decreased vision, include bilateral ectopia lentis (lens dislocation), myopia and retinal detachment [1]. About 50% of patients with Marfan syndrome are diagnosed by an ophthalmologist; some individuals may present with isolated ocular signs suggestive of this syndrom...

Crystalline Lens With Focus

Methods. Scheimpflug slit-lamp photography, as well as a variety of standard ophthalmologic methods, was used to collect information about lens and anterior segment sagittal dimensions in a population of 82 adults with refractive error < 12.01 diopters and at least 0.25 diopter of accommodation for subjects 18 to 70 years of age. Data were analyzed statistically for dependence on accommodation,...

Physiology of Crystalline Lens

Ageing and the crystalline lens

Ageing leads to gradual loss of the crystalline lens's three main functions due to changes in the transparency and rigidity of the latter, and following various biochemical and ultra structural alterations. Opacification causes the appearance of senile cataract, which is the main cause of vision loss worldwide. Hardening of the crystalline lens gradually restricts accommodation, leading to pres...