• Closeup portrait headshot young woman with glasses. Woman is near sighted. KAMRA Inlay helps to tread nearsightedness.

The KAMRA® Corneal Inlay Brings Life Back into Focus

Irvine, CA, March 8, 2017 — Pin­hole pho­tog­ra­phy has fas­ci­nat­ed us for cen­turies, from
ancient Greek philoso­phers exper­i­ment­ing with the pin­hole effect to today’s advanced
smart­phones uti­liz­ing small aper­ture tech­nol­o­gy to cap­ture a clear image instant­ly. Now
this sci­en­tif­ic prin­ci­ple, and foun­da­tion of pho­tog­ra­phy, is dra­mat­i­cal­ly chang­ing the way
we see as we get old­er and reduc­ing the need for dread­ed read­ing glass­es. The KAMRA
corneal inlay, devel­oped by Acu­Fo­cus, Inc., is a first-of-its-kind corneal inlay that brings
life back into clear focus using the same prin­ci­ples of the pin­hole effect for peo­ple with
pres­by­opia, a nat­ur­al loss of near vision that hap­pens to all of us start­ing in our mid 40s.

An esti­mat­ed 114 mil­lion peo­ple in the Unit­ed States have pres­by­opia. Some of the
signs and symp­toms of pres­by­opia are stretch­ing your arms out to see or read clear­ly
and blur­ry near vision that often leads to a con­stant shuf­fle of tak­ing read­ing glass­es on
and off. With pres­by­opia, the nat­ur­al lens of the eye that flex­es and focus­es light
allow­ing peo­ple to see near, becomes stiff over time. Even­tu­al­ly, the lens becomes
inflex­i­ble and as a result see­ing words and objects up close is increas­ing­ly dif­fi­cult.

Using the pin­hole effect, the KAMRA inlay focus­es rays of light enter­ing the eye to
regain a con­tin­u­ous and unin­ter­rupt­ed range of vision from near to far. Small­er and
thin­ner than a con­tact lens, the KAMRA inlay is a mini-ring with a tiny open­ing in the
cen­ter cre­at­ing a pin­hole effect. The inlay is sur­gi­cal­ly placed in only one eye by an
oph­thal­mol­o­gist to restore every­day vision allow­ing patients to clear­ly see text
mes­sages, read mag­a­zines or view a com­put­er screen. Designed with the goal of
reduc­ing depen­dence on read­ing glass­es for peo­ple 45 or old­er, the inlay has become
espe­cial­ly pop­u­lar with those who lead active lifestyles and want to func­tion at all
dis­tances with­out the need to lug around glass­es.

Because the KAMRA inlay uses the pin­hole effect, the range of vision is main­tained
over time. As you cel­e­brate more birth­days, you are still main­tain­ing clear vision from
near to far. It is tru­ly more of a life­long pres­by­opic solu­tion rather than the tem­po­rary
solu­tions pre­vi­ous­ly avail­able,” said Dr. William Wiley, a nation­al­ly-renowned
oph­thal­mol­o­gist and med­ical direc­tor at Clear Choice, the Cleve­land Eye Clin­ic and
Tole­do LASIK Cen­ter. “As an oph­thalmic sur­geon, it was amaz­ing see­ing the excite­ment
and delight those first patients had with their restored vision when they came back the
first week. Since then we’ve done hun­dreds of KAMRA inlay pro­ce­dures.”

The pin­hole effect is dif­fer­ent from oth­er solu­tions for pres­by­opia. For years, mono­vi­sion
tech­nol­o­gy has been used in con­tact lens­es and refrac­tive vision cor­rec­tion. Mono­vi­sion
LASIK cor­rects one eye for near vision while the oth­er eye remains focused on far
vision. For most, this tem­po­rary solu­tion means the loss of far vision and strug­gles with
dimin­ished depth per­cep­tion and binoc­u­lar visu­al func­tion.

Mono­vi­sion is basi­cal­ly a sta­t­ic solu­tion for a dynam­ic prob­lem,” Dr. Wiley said.
“How­ev­er with the KAMRA inlay, you’re basi­cal­ly treat­ing a dynam­ic prob­lem with a
dynam­ic solu­tion. We’ve nev­er had so many staff mem­bers jump on to one pro­ce­dure. I
think it’s sort of a tes­ta­ment, a great endorse­ment for the prod­uct to see the staff ral­ly
around it. We call them our KAMRA crew.”

Pres­by­opic patients also have relied on read­ing glass­es, which only use one-way
mag­ni­fi­ca­tion, so the per­son must con­stant­ly remove their glass­es to see things at a
dis­tance. Bifo­cals or pro­gres­sive glass­es cor­rect for near and far vision, but like read­ing
glass­es, leave the patient tilt­ing and cran­ing their head to hit that sweet spot, basi­cal­ly
the sin­gle point of clear focus that pro­vides clar­i­ty, so they can final­ly read the screen,
book or menu.

The KAMRA inlay is a bril­liant solu­tion that moves beyond the com­pro­mis­es that are
avail­able today for pres­by­opes,” said Al Water­house, Pres­i­dent and COO of Acu­Fo­cus.
“Instead of a sin­gle clear focal point obtained with read­ing glass­es and tra­di­tion­al
mono­vi­sion, pin­hole tech­nol­o­gy stretch­es that focal point over a long range for seam­less
near to far vision. Oth­er vision cor­rec­tion tech­nolo­gies rely on using increased lens
pow­er to influ­ence near vision and com­pro­mis­es good far vision. The KAMRA inlay
restores near vision while main­tain­ing far vision.”


March 10th, 2017|Comments Off on The KAMRA® Corneal Inlay Brings Life Back into Focus

About the Author:

Born in Connecticut and raised in Upstate New York , Dr. Stetson graduated Cum Laude from Colgate University in New York, and then earned an MD degree with honors at the University of Vermont College of Medicine. He distinguished himself again in residency at the Albany Medical Center, where he obtained the highest percentile in the Ophthalmology Knowledge Assessment Examinations. Dr. Stetson has performed more than 50,000 refractive surgeries and has been on staff at Diamond Vision since 2004, before becoming Medical Director in 2006.


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