Aim: To describe a new diagnostic sign and improved technique for cataract extraction in cases with posterior lenticonus. Setting: Kasr Alainy hospital, Cairo University, Cairo, Egypt Methods: A consecutive series comprised of 16 eyes of 15 patients with definite or suspected posterior lenticonus were diagnosed and surgically treated by a modified technique to prevent premature opening of poste...

AIMS/BACKGROUND Phacoemulsification is rapidly replacing conventional extracapsular cataract extraction (ECCE) as the method of choice for cataract surgery in the Western world. However, posterior capsule opacification (PCO) still remains the major postoperative complication, affecting 20-50% of patients, and results from persistent cell growth of epithelial cells remaining after surgery. This ...

It has been known that the vestibular system is concerned with feelings of dizziness or vertigo. The vestibulo-thalamic pathway has also been described previously. However, there has been no confirmative report so far regarding the pathway through the internal capsule to the cortex. We have experienced 13 patients with symptoms of dizziness and/or vertigo whose lesions are located only around t...

To investigate potential heterogeneity and developmental changes in basement membranes during embryogenesis, we performed immunohistochemical analyses on lens capsules in chicken embryos of different ages using domain-specific monoclonal antibodies against type IV collagen. We found that the capsule of the newly formed lens stained uniformly with antibodies against this component of basement me...

BACKGROUND The pulsed electron avalanche knife (PEAK-fc) is a new pulsed electrosurgical device that allows for precise, "cold" and traction-free tissue dissection. AIM To evaluate the surgical applicability, safety and potential complications of PEAK-fc in complicated cataract surgery. METHODS The study included five children with congenital cataracts, two patients with advanced senile cat...

OCTOBER 2010 CATARACT & REFRACTIVE SURGERY TODAY 39 A rguably, the single most significant complication faced by today’s phaco surgeon continues to be rupture of the posterior capsule.1 When the posterior capsule is breached, vitreous that presents anterior to the plane of the capsule must be removed. Fortunately, in the setting of small-incision surgery, if the ophthalmologist adheres to certa...

Repair of the posterior capsule is advocated to reduce dislocation after total hip replacement (THR). To date, no predictable physical findings are reported in the literature to assess the capsular integrity and risk of hip dislocation after the posterior approach. The internal rotation test is performed at 4 to 6 weeks postoperatively with the hip and knee flexed at 90° while the patient is su...

PURPOSE To present a cause of posterior capsule aspiration and a technique using optimized parameters to prevent it from happening when operating soft cataracts. PATIENTS AND METHODS A prospective list of posterior capsule aspiration cases was kept over 4,062 consecutive cases operated with the Alcon CENTURION machine and Balanced Tip. Video analysis of one case of posterior capsule aspiratio...

The nervous fibers in the human internal capsule were mapped according to their three-dimensional orientation. Four human cadaver brains were cut into comparable and standardized sections parallel to the ACPC-plane, stained with DiI, and analyzed using a combination of confocal and polarized light microscopy at the same time. This combination provides information about the structure and orienta...

PURPOSE To image the posterior zonular attachment site by using environmental scanning electron microscopy (ESEM). METHODS A custom-made device was designed to mount human cadaveric lenses, with the zonule, ciliary body, and sclera attached, inside an environmental scanning electron microscope (ESEM). The mount was designed to allow radial stretching to enhance exposure of the accommodation a...