Sunday, April 28, 2013

Assistive devices



Naki’o, a US dog, who lost all four feet to frostbite, with four prosthetic devices, goes for a run, reports Times of India, April 27, 2013.

Prosthetic assistive devices transform the lives of those suffering from disabilities.

It’s now widely known that the wheel-chair-bound former chief minister of Madhya Pradesh, Ajit Jogi, is soon likely to walk again with the help of the scientific marvel, the robotic e-legs.

In the case of ocular conditions, the artificial intra ocular lens (IOL) implanted at the time of phakoemulsification procedure of the surgical removal of the cataractous lens negates the use of post-operative unsightly heavy thick plus glasses of yesteryear.

The cosmetic brown soft contact lens provides beautiful matching look to the eye with an opaque/disfigured cornea.

The red X-chrom soft contact lens helps the red-green-colour-deficient person score better on the colour-blindness Ishihara’s book test.

And, the Ptosis Spectacles, with comfortable non-conspicuous nylon thread support/s, effectively lift the drooping upper lid/s in patients suffering from the disease called Ptosis (in cases where the oculo-plastic surgeon decides/advises against surgical intervention).

Dr. Narendra Kumar
OptometryToday@gmail.com

Thursday, April 11, 2013

Is this dispensing up to the mark?

While no one disputes the importance of precision fitting of lenses, especially the progressives (with optical centres of lenses matching the patient's monocular PD), I seek advice of experts about the shortcomings, if any, in dispensing lenses based on markings of pupil centres on demo lenses of selected and adjusted frame, as depicted in the following illustration (by innumerable practitioners in developing countries including India who do not own a pupillometer).

Dr. Narendra Kumar
Editor, Optometry Today
OptometryToday@gmail.com