Mcrhods 1) Convex (+15 D) and concave (-15 D) lenses were mounted over one eye of day old chicks (n=25). Refractive states and ocular diameters were measured by retinoscopy and ultrasound. The eyes were enucleated, weighed and measured after the birds were sacrificed on the 7th day. The remaining heads were cleaned and placed in 2% NaOH to rem& all soft tissues.Orbital dimensions were measured ...

Purpose: to study the severity of dry eye symptoms in patients who wear contact lenses and those underwent laser keratomileusis a long period ago according OSDI questionnaire. Methods. 88 with various refractive disorders were included study, there 33 men 55 women. Mean age was 30,11 y.o. All divided into 3 groups method disorder correction. Groups equal gender. The first 27 wearing soft for mo...

It is widely recognised that children with Down syndrome have a broad range and high prevalence of visual deficits it has been suggested those are more likely to exhibit perception indicative cerebral impairment. This exploratory study aims determine the behavioural features suggestive impairment (CVI) occurring whether problems can be ascribed optometric factors. A cohort 226 families (trisomy...

purpose : to investigate the sensations experienced by chinese patients during refractive surgery including the laser in situ keratomileusis (lasik), epi-lasik, and sub-bowman keratomileusis (sbk) techniques. a prospective, randomized, and self-matched clinical study was conducted. methods : the participants included 44 men and 58 women aged 16 to 47 years old (mean 24.3±0.6 years) who underwen...

NOVEMBER/DECEMBER 2010 CATARACT & REFRACTIVE SURGERY TODAY EUROPE 23 F ull-thickness penetrating keratoplasty (PKP) has been the preferred corneal transplantation technique since the procedure was first described in 1905 by Eduard Zirm.1 Today, PKP generally results in clear corneal grafts, with a graft survival rate of up to 72% at 5 years.2 However, the procedure is frequently complicated by ...

Laser technology is used in many basic and clinical disciplines and specialties, and it has played an important role in promoting the development of ophthalmology, especially corneal refractive surgery. We provide an overview of the evolution of laser technology for use in refractive and other ophthalmologic surgeries, mainly focusing on two types of lasers and their applications. First, we dis...

PURPOSE To design subjective aniseikonia measuring criteria in order to quantify its value and to use it to the clinical practice. MATERIAL AND METHODS In order to carry out the aniseikonia measurements, a sinoptophore (Clement Clark) was used and two tests (one per eye of each patient) were performed. A viewfinder capable of measuring the difference in size between subjective images in both ...