Background: A new commercially available optical low coherence reflectometry device (Lenstar,
Haag-Streit or Allegro Biograph, Wavelight) provides high-resolution non-contact …

Purpose. A clinical evaluation of the Shin-Nippon NVision-K 5001 (also branded as the
Grand Seiko WR-5100K) autorefractor (Japan) was performed to examine validity and …

Presbyopia is a global problem affecting over a billion people worldwide. The prevalence of
unmanaged presbyopia is as high as 50% of those over 50 years of age in developing world …

Purpose: A clinical evaluation of the Grand Seiko Auto Ref/Keratometer WAM‐5500 (Japan)
was performed to evaluate validity and repeatability compared with non‐cycloplegic …

… Dr Davies is currently a senior lecturer in optometry and convener of the Ophthalmic
Research Group at Aston University. Leon’s clinical teaching at Aston is centred around …

… original probe would otherwise require sterilization procedures that would be too time-consuming
for the purposes of this study, a protocol adopted in a previous investigation (Davies et …

… Davies and colleagues 43 explained using ray tracing that axially myopic and axially
hyperopic eyes show different vergence contributions for light rays entering the anterior segment. …

… Accommodative changes in some biometric factors, including anterior chamber depth and
lens thickness have been determined by AS-OCT (Davies LN, et al. IOVS 2008;49:ARVO E-…

… Recruitment and data collection at Aston University was mainly carried out by LN Davies
and assisted by A. Benavente Perez and at Bradford University by P. Kashyap with assistance …

… CM25 (shown by Sheppard and Davies 17 to increase significantly with accommodation
in youthful eyes) thickens in response to an accommodative stimulus throughout life. Figure 5 …