There are three orthoscopic
eyepieces (18-, 10-, and 6-mm) and a 32-mm Plossl.
Iain Anderson, for the Eyecare Trust, said: "More experience of the Orthoscopics
system is needed before we will know just how effective it may be but the first results are most encouraging.
Timing synchronisation using the Orthoscopics Read Eye is possible and symptom alleviation is instantaneous.
He is a director in Orthoscopics and is heavily involved with research and development.
Mr Gilsenan (pictured above far right with his team) runs the only orthoscopics clinic in Northern Ireland.
But sometimes it is their eyes still, which is where orthoscopics comes in.
It was another 16 years before he first encountered orthoscopics.
I see a lot of children with visual stress issues which could be resolved with orthoscopics, quickly and effectively.
Since I have prescribed orthoscopic lenses for him, he has shown significant improvement in his reading skills.
Orion's Explorer Orthoscopics, however, gave a substantially narrower window on the universe than the Plossl and RKE designs, while the University Optics 12-mm Plossl stood out for its unusually wide field.
The Explorer Orthoscopics came in last in this regard.
The Explorer Orthoscopics showed the least; the Edmund RKEs and Tele Vue Plossls showed the most by a slight margin.