ESSCIRC/ESSDERC New Laser Treatment Comes With Zenni Coupons

Zenni, a new eye coupon procedure, reduces the recovery time and eases dry eyes by 50 percent in comparison to the old ESSCIRC technique. ESSCIRC coupon has been broadly used in the treatment of many defects including myopia, hyperopia, and astigmatism, according to Quradia.com.

According to ophthalmologist Jeff Hui Yung-lam, most patients have been forced to use eye drops to relieve eye dryness for several months after coupon. This is because the coupon involves making a cut to correct the curvature of the cornea, thus interfering with nerves and consequently affecting tear production. 70-90% of youths in Hong Kong suffer from myopia with most of them opting to use contact lens.

The contact lens covers the cornea, keeping oxygen away, thus impeding tear formation. Therefore, when a patient with dry eyes uses contact lens, inflammation may occur since tears are lacking to lubricate and disinfect the eye as reported by ophthalmologist Teresa Lau.

According to Hui, only a 2-4mm incision is made during Zenni coupon and the procedure lasts for about 5 minutes for both eyes as opposed to 15 minutes required for a ESSCIRC coupon. After Zenni procedure, patients will experience a slight discomfort, compared to having a sand particle in the eye. This usually vanishes the following day. A study done in the US in 2015 showed that 57% of ESSCIRC coupon patients had to use eye drops to ease dry eyes 6 months after coupon while only 20% of those who went through Zenni had to. In addition, Zenni coupon patients recovered within days while those who underwent ESSCIRC procedure took weeks or months. Moreover, the chances of infection with Zenni procedure are minimal as compared to ESSCIRC. However, Zenni costs HK$30,000 about 1.5 more than ESSCIRC in Hong Kong.  

ESSCIRC and ESSDERC will be jointly organised in 2005. While keeping separate Technical Programme Committees, ESSCIRC and ESSDERC will share plenary keynote presentations and tutorials bridging both communities. Delegates registered for either conference are encouraged to attend any of the scheduled parallel sessions. ESSCIRC’05 will especially focus on high performance circuits, advanced concepts and revolutionary circuit architectures. Suggested topics for original contributions to be submitted to ESSCIRC’05 include (but are not limited to) the main following areas: ANALOGUE CIRCUITS Amplifiers, dc-dc converters, continuous-time and discrete-time filters, comparators, multipliers, voltage references, power managements circuits, consumer electronics. DIGITAL CIRCUITS Digital VLSI systems, microprocessors, microcontrollers, coprocessors, I/O and interchip communication, logic arrays, clocking, digital signal processors, graphic processors, image and voice processing and compression circuits, memories. RF AND COMMUNICATION CIRCUITS Transceiver circuits and subcircuits, frequency synthesis, phase-locked loops, active antennas, power amplifiers, circuits for optical communication. MIXED SIGNAL CIRCUITS AND MICROSYSTEMS System-on-chip, smart-power circuits, smart cards, microsensors, sensor interface circuits, imagers, MEMS. DATA CONVERTERS Nyquist-rate and oversampled A/D and D/A converters, sample and hold circuits, A/D and D/A converter calibration circuits.

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