Previous determination of the nucleotide sequence of the iol region of the Bacillus subtilis genome allowed us to predict the structure of the iol operon for myo-inositol catabolism, consisting of 10 iol genes (iolA to iouJ); iolG corresponds to idh, encoding myo-inositol 2-dehydrogenase (Idh). Primer extension analysis suggested that an inositol-inducible promoter for the iol operon (iol promo...

PURPOSE To determine whether rotational stability is improved with the longer Staar toric intraocular lens (IOL). SETTING A private practice, Los Altos, California, USA. METHODS Staar Surgical manufactures toric plate-haptic IOLs under +24.0 diopters (D) in 2 lengths. Fifty consecutive eyes requiring toric IOL spherical powers less than +24.0 D received the longer toric IOL (TL; 11.2 mm) us...

PURPOSE To establish a novel murine intraocular lens (IOL) implantation model to study the protective effects of colored-IOLs against retinal phototoxicity. METHODS Two-millimeter diameter IOL buttons were created from IOLs for clinical use. Extra-capsular crystalline lens extraction and IOL implantation were performed in BALB/c mice using a technique similar to human cataract surgery. For li...

Summary: An overview on polypseudophakia (‘piggyback’ intraocular lens [IOLs]) is given. Requirements on a sulcus-supported supplementary IOL are defined. Two-year results of a new IOL (Sulcoflex®) are presented and indications for this IOL are defined. Methods: The IOL is especially designed for implantation into the ciliary sulcus in pseudophakic eyes (piggyback). It is a single-piece implant...

OBJECTIVE To present options for managing a patient with a dislocated intraocular lens (IOL) in the presence of a second, nondislocated IOL. METHODS A review of 3 consecutive cases and the surgical maneuvers used in managing them. RESULTS The anterior chamber IOL was removed after scleral fixating the dislocated posterior chamber IOL in 1 case with corneal disease. The foldable, dislocated,...

BACKGROUND Unexplained variation in induction of labour (IOL) rates exist between hospitals, even after accounting for casemix and hospital differences. We aimed to explore factors that influence clinical decision-making for IOL that may be contributing to the variation in IOL rates between hospitals. METHODS We undertook a qualitative study involving semi-structured, audio-recorded interview...

Postoperative refractive outcome largely depends on the accuracy of calculating power of implanted IOL. Lens power calculation can be done by conventional ultrasound biometry and partial coherence laser interferometry (IOL Master). The aim was to compare the accuracy of IOL power calculations using conventional ultrasound biometry and partial coherence laser interferometry.40 eyes were included...

Dear Editor, Intraocular lens (IOL) fracture is a relatively rare complication of cataract surgery during IOL implantation [1]. Foldable IOLs specifically are often fractured by either forceps or injector systems during IOL loading [2,3]. To improve the efficacy and safety of cataract surgery, many preloaded IOLs have been developed and are widely used. Here, we report the first optic fracture ...

PURPOSE To evaluate the clinical outcomes of intraocular lens (IOL) exchange in patients with an opacified ACRL-C160 intraocular lens (IOL) using an optic-only removal technique. SETTING Department of Ophthalmology, Soonchunhyang University Hospital, Seoul, Korea. METHODS The study comprised eyes with previous phacoemulsification and implantation of a single-piece hydrophilic acrylic IOL in...