PURPOSE The primary objective of the study was to explore the statistics of ocular higher-order aberrations in a population of primary and secondary school children. METHODS A sample of 557 children aged 10-15 years were selected from two primary and two secondary schools in Heraklion, Greece. Children were classified by age in three subgroups: group I (10.7±0.5 years), group II (12.4±0.5 yea...

PURPOSE To compare ocular and internal aberrations after femtosecond laser anterior capsulotomy and continuous curvilinear capsulorrhexis in cataract surgery. METHODS In this prospective study, anterior capsulotomy was performed during cataract surgery with an intraocular femtosecond (FS) laser (Alcon LenSx Inc) in 48 eyes. As a control group, continuous curvilinear capsulorrhexis (CCC) was p...

Scalable shared-memory multiprocessors that are designed as Cache-Only Memory Architectures (Coma) allow automatic replication and migration of data in the main memory. This enhances programmability by hopefully eliminating the need for data distribution strategies and page migration schemes. Recently, a variant of Coma called Simple Coma has been proposed as a lower-cost alternative to hardwar...

We explored the relative changes in ocular, corneal, and internal aberrations associated with normal aging with special emphasis in the role of ocular alignment and lens shape factor in the balance of aberrations. Ocular and corneal aberrations together with the angle kappa were measured for a 5-mm pupil diameter in 46 eyes with low refractive errors and ages ranging between 20 and 77 years. Th...

Both the anterior surface of the cornea and the internal optics (the posterior cornea, crystalline lens) contribute to the aberration of a wavefront passing through the eye. Artal, Guirao, Berrio, and Williams (2001) reported that the wavefront aberrations produced by the internal optics offset, or compensate for, the aberrations produced by the cornea to reduce ocular wavefront aberrations. We...

Scalable shared-memory multiprocessors that are designed as Cache-Only Memory Architectures (Coma) allow automatic replication and migration of data in the main memory. This enhances programmability by hopefully eliminating the need for data distribution strategies and page migration schemes. Recently, a variant of Coma called Simple Coma has been proposed as a lower-cost alternative to hardwar...

PURPOSE To determine if a fogging lens ameliorates accommodative effects driven by the closed-view design of the BHVI-EyeMapper (EM) instrument. We compared cycloplegic refraction and higher-order aberration measurements of the EM with those obtained with a fogging lens. METHODS Twenty-six, young, participants (15F, 25±5 years, range: 18-35 years, SE: +0.25 D and -3.50 D) with good ocular hea...

three cases of hepatic coma due to acute hepatitis were treated by exchange transfusion with citrated blood. this was preformed in the first 2 cases (patients no 1 and no 2) after failing to respond to other forms of treatment, and in the last patient, who was admitted to hospital in coma, a few hours after admission. (patient no 3) two of the 3 patients, patients 1 and 3 recovered, 1 died, (pa...

A patient with posthypoxic "alpha coma" is described whose EEGs were recorded before coma, within two hours following the onset of coma and after recovery. The differences observed between the alpha activity during coma and that seen before and after suggest that the alpha activity during coma and the physiologic alpha rhythm are different phenomena. This case, as well as others reported, also ...

Scalable shared memory multiprocessors traditionally use either a cache coherent non uniform memory access CC NUMA or simple cache only memory architecture S COMA memory architecture Recently hybrid architectures that combine aspects of both CC NUMA and S COMA have emerged In this paper we present two improvements over other hybrid architectures The rst improvement is a page allocation algorith...