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Page 1: s499648585.mialojamiento.ess499648585.mialojamiento.es/biblioteca/LASER_EXCIMER... · 2016-11-11 · To evaluate the use of a single-step optimized Corneal-Wavefront guided TransPRK
Page 2: s499648585.mialojamiento.ess499648585.mialojamiento.es/biblioteca/LASER_EXCIMER... · 2016-11-11 · To evaluate the use of a single-step optimized Corneal-Wavefront guided TransPRK
Page 3: s499648585.mialojamiento.ess499648585.mialojamiento.es/biblioteca/LASER_EXCIMER... · 2016-11-11 · To evaluate the use of a single-step optimized Corneal-Wavefront guided TransPRK
Page 4: s499648585.mialojamiento.ess499648585.mialojamiento.es/biblioteca/LASER_EXCIMER... · 2016-11-11 · To evaluate the use of a single-step optimized Corneal-Wavefront guided TransPRK

OftalTech

COMBINED SELECTIVE CORNEAL WAVEFRONT-GUIDED

PHOTOREFRACTIVE KERATECTOMY AND CORNEAL CROSS-LINKING

IN EYES WITH PROGRESSIVE MILD TO MODERATE KERATOCONUS

Session Details

Session Title: CRS/RLE

Session Date/Time: Saturday 17/09/2011 | 16:30-18:00

Paper Time: 16:42

Venue: Hall A3

First Author: S.Awwad LEBANON

Co Author(s): V. Massoud D. Fahd N. Jabbur

Abstract Details

Purpose: To evaluate the efficacy and safety of combined selective corneal wavefront-guided

photorefractive keratectomy (CWG-PRK) and corneal cross-linking (CXL) in

progressive mild to moderate keratoconus.

Setting: American University of Beirut Medical Center, Beirut, Lebanon.

Methods: A retrospective interventional case series of 6 eyes of six patients with mild to moderate

keratoconus with a documented history of disease progression. Selective CWG-PRK

was achieved using the Schwind Amaris excimer laser with static and dynamic

cyclotorsion control and wavefront registration by treating selected out-of-range corneal

higher order aberrations (HOAs) to minimize tissue ablation, all while treating a defined

amount of sphere and cylinder so that the total peak ablation depth is kept under 50

microns and the residual corneal thickness is kept above 400 microns. CXL was

performed at the same setting with application of 0.02% mitomycin C. Mean follow-up

time was 9.2 months.

Results: Preoperative and postoperative UCVA and BSCVA mean logMar improved from 0.48

to 0.3 and 0.16 to 0.06 respectively. All patients reported noticeable improvement in

their visual symptoms. There was a consistent decrease in total corneal HOAs and coma

aberrations. Corneal topography showed an improvement in anterior surface irregularity

indices (IS ratio decreased from 6.0 to 4.7, SAI from 2.8 to 2.5, and SRI form 1.3 to

1.2), while Scheimpflug imaging showed stable anterior and posterior floats over the

course of the follow-ups, which ranged from 6 to 15 months.

Conclusions: Combined selective CWG-PRK and CXL in progressive mild to moderate keratoconus

is safe and effective. Compared to topography-guided ablation, CWG laser ablation

permits selective treatment of corneal higher order aberrations, thus improving visual

quality while sparing stromal tissue

Financial Disclosure: None

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OftalTech

REFRACTIVE OUTCOME IN PRESBYOPIC PATIENTS TREATED

WITH SHWIND AMARIS PRESBYMAX LASER TREATMENT

Session Details

Session Title: Presbyopia

Session Date/Time: Sunday 18/09/2011 | 08:00-09:30

Paper Time: 08:24

Venue: Hall A1

First Author: H.Mahmood BAHRAIN

Co Author(s)

Abstract Details

Purpose:

Study the effect of near and distance vision outcome by SHWIND AMARIS Presbymax

approach

Setting:

Dr haifa Eye Specialist Center

Methods:

All patients were corrected with PresbyMax approach. Only laser PRK were

included.The optical zone was set between 6.5mm and 7.5 mm. Treatement performed

on the basis of both both eyes with same addition, same optical zone ans same surgical

day. the preoperative manifest refraction of defocus: - 1.00 D to +5.25 D, astigmatism :

up to - 4.25 D, addition up to + 2.50 D. All data from from 40 patients (including 2

patients post RK surgery and 1 patient pseudophakic post phaco-emulsification both

eyes) anylyzes for a post operative period of 6 -18 months.

Results:

95% of patients have no significant changes in defocus, cylinder or addition, 100 % of

patients with myopia and myopic astigmatism patients had arrange of 0.25 D

defocus,and 95% of 0.5 D in hyperopic patients. Regression happen in 2 patients( one

patient with hyperopia and one emmetropic patient).

Conclusions:

SHWIND AMARIS PresbyMax treatment is safe and effective for the treatment of

prebypia

Financial Disclosure:

None

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OftalTech

3 MONTH EXPERIENCE WITH PRIMARY CORNEAL WAVEFRONT

GUIDED TREATMENTS USING THE SCHWIND AMARIS 750S LASER:

CLINICAL OUTCOMES

Session Details

Session Title: Laser Refractive Surgery

Session Date/Time: Monday 19/09/2011 | 14:30-17:00

Paper Time: 15:12

Venue: Hall A3

First Author: J.Tan SINGAPORE

Co Author(s): Y. Por

Abstract Details

Purpose:

To evaluate post-operative outcomes on refraction, corneal higher order aberrations and

contrast sensitivity among previously unoperated eyes that underwent LASIK

treatments with the Schwind Amaris 750S. All cases were treated prospectively using

corneal wavefront guided treatments. Setting:

Jerry Tan Eye Surgery, Singapore

Methods:

One hundred eyes for corneal wavefront guided treatments were enrolled. Pre-and post-

operative uncorrected and best corrected distance visual acuities, corneal and ocular

wavefronts, and contrast sensitivities were performed. Corneal wavefronts were

measured with the Scout and Sirius topographers, and ocular wavefronts with the IRX 3

(Schwind Eye-Tech-Solutions, Kleinostheim, Germany). Contrast sensitivity was

performed with the Sine Wave Contrast Test (Stereo Optical Co, USA). Treatments

were planned with the ORK-CAM software, and ablation performed with the Amaris

750S (Schwind Eye-Tech-Solutions, Kleinostheim, Germany). LASIK flaps were cut

with the iFS Intralase laser (Abbott Medical Optics, USA). Clinical outcomes were

evaluated in terms of predictability of refractive outcomes, safety, corneal wavefront

changes and contrast sensitivity.

Results:

At 3 months post-operatively, 100% of patients were within 1.00D of targeted

refraction. No patient lost 2 or more lines of best corrected vision. Coma and spherical

aberration were reduced in all cases with less than 6.00D of myopia pre-operatively.

Contrast sensitivity was improved in the majority of cases.

Conclusions:

Corneal wavefront guided treatments with the 750Hz Schwind Amaris 750S laser are

safe and predictable when used in previously untreated eyes. Refractive errors and

higher order aberrations were reduced post-operatively in low and moderate myopes.

No nomogram adjustments were necessary.

Financial Disclosure:

... receives consulting fees, retainer, or contract payments from a company producing,

developing or supplying the product or procedure presented, ...receives consulting fees,

retainer, or contract payments from a competing company

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OftalTech

CROSS-LINKING FOLLOWED BY CUSTOMIZED TRANS-PRK

Session Details

Session Title: Cross-Linking 2

Session Date/Time: Tuesday 20/09/2011 | 14:00-16:00

Paper Time: 15:22

Venue: Strauss 2

First Author: M.Camellin ITALY

Co Author(s): S. Mosquera

Abstract Details Purpose: To evaluate the use of a single-step optimized Corneal-Wavefront guided TransPRK to

correct High Order aberrations (Coma) problems after Cross Linking following

Keratoconus. Setting:

Dr. Massimo Camellin, SEKAL Rovigo Microsurgery Centre, Rovigo, Italy. Methods:

Retrospective, non-comparative, consecutive case series, 21 eyes underwent at first

Cross linking and, after 4 months, Corneal-Wavefront guided TransPRK for correction

of aberrations (Mainly coma) 4 months following cross linking. Keratron-Scout

topography (Optikon 2000) and a flying-spot laser (AMARIS; SCHWIND eye-tech-

solutions) were used. As in keratoconus, the most frequent and negative aberration is

coma, we decided to reduce only it so saving tissue. Preoperatively, eyes showed

irregular astigmatism 3.7D (SD 1.4) and corneal wavefront coma (5mm) 1.7u (SD 1.1).

BCVA pre was 4.9/10 (SD 2.2). UCVA pre was 1.1/10 (SD 1.1). Complete ophthalmic

examinations were performed before and after surgery. Results:

The mean age of the patients was 32 (SD 10) years (range 16 to 62 years) at the time of

the surgery. Mean follow-up was 8±7 months (2 to 31 months). Postoperatively, eyes

showed astigmatism 2.4D (SD 1.9) and corneal wavefront coma (5mm) 0.8u (SD 0.5).

BCVA post was 6.3/10 (SD 1.9). UCVA post was 3.3/10 (SD 3). No Snellen lines of

BSCVA lost, and 13 eyes (65%) had an increase of more than 2 lines. Haze was 0 in all

eyes. Apex pachimetry (thinnest point) passed from 455 to 410 so the real weakening of

the cornea is negligible. Conclusions:

Corneal-Wavefront guided TransPRK using AMARIS is a safe and effective suitable

solution for reducing coma problems after Cross linking for keratoconus. This

procedure has a fast recovery time and is good solution in eyes not candidate for

transplant. These patients can use soft contact lenses or glasses to reduce their residual

refractive error. Financial Disclosure:

None

Page 8: s499648585.mialojamiento.ess499648585.mialojamiento.es/biblioteca/LASER_EXCIMER... · 2016-11-11 · To evaluate the use of a single-step optimized Corneal-Wavefront guided TransPRK

OftalTech

ABLATION VOLUME AND POSTOPERATIVE REFRACTION IN EXCIMER

LASER MYOPIC CORRECTION MEASURED WITH SCHEIMPFLUG

IMAGING

Session Details

Session Title: Outcome Myopia

Session Date/Time: Tuesday 20/09/2011 | 14:00-16:00

Paper Time: 15:24

Venue: Hall A2

First Author: M.Arbelaez OMAN

Co Author(s): S. Arba Mosquera

Abstract Details Purpose:

To analyse measurements of a Scheimpflug imaging technique to describe the ablated

volume after myopic astigmatic corneal laser refractive surgery and achieved refractive

correction. Setting:

Maria Clara Arbelaez, MD, Muscat Eye Laser Center, PO Box 938, PC 117, Muscat,

Oman. Tel: 96 824 691 414; Fax: 96 824 601 212; E-mail: [email protected] Methods:

Three-hundred myopic astigmatism treatments using LASIK or LASEK in 150 patients

with 3-month followup were retrospectively analyzed. In all cases, standard

examinations, pre-/postoperative corneal topography, aberrometry, and Scheimpflug

were performed. SCHWIND Custom Ablation Manager (CAM) software and the

AMARIS 750S laser were used for planning treatments and performing ablations.

Outcomes were evaluated in terms of predictability, safety, and wavefront aberration.

Pachymetry maps was taken before treatment (Scheimpflug [CSO SIRIUS]) and at 3-

month follow-up (Scheimpflug [CSO SIRIUS]). The changes in corneal volume were

compared to the theoretical ablation volume provided by the AMARIS readout. The

statistical significance of the differences were evaluated with paired Student T-test,

correlations between parameters were evaluated with the coefficient of determination. Results:

At 3 months, 93% of eyes achieved 20/20 UCVA, and 92% of eyes were within 0.50

diopters (D). Postoperative mean spherical equivalent refraction was -0.16±0.32 D. Best

spectacle-corrected visual acuity improved in 31% of eyes. Differential corneal volume

correlated to intended ablation volume r2=0.90, P<.0001, slope 0.91. Relative

differential volume correlated only marginally to achieved refractive correction. Conclusions:

Differential corneal volume is a metric useful for describing intended ablation volume

but not for achieved refractive correction. The rotating Scheimpflug technique offers

good estimation (slope close to 1) and fair correlation (r2 close to 1) for describing

ablation volume. Only borderline correlations were obtained for achieved refractive

correction. Financial Disclosure:

... is employed by a forNoneprofit company with an interest in the subject of the

presentation, ... travel has been funded, fully or partially, by a competing company

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OftalTech

TRANSEPITHELIAL PHOTOTHERAPEUTIC KERATECTOMY MODE

USING THE SCHWIND AMARIS EXCIMER LASER

Session Details

Session Title: Outcome Myopia

Session Date/Time: Tuesday 20/09/2011 | 14:00-16:00

Paper Time: 15:36

Venue: Hall A2

First Author: S.Adib-Moghadam IRAN, ISLAMIC REPUBLIC OF

Co Author(s)

Abstract Details

Purpose:

To evaluate epithelial healing and refractive outcomes after transepithelial

photorefractive keratectomy (tPRK) mode using the Schwind Amaris 500 excimer laser.

Setting:

Bina Eye Hospital, Tehran, Iran.

Methods:

Twenty-seven eyes from 18 patients with myopia underwent tPRK using a multistage

program to perform PTK followed by PRK. All ablations were performed with an

Amaris 500 excimer laser platform (Schwind Eye-Tech-Solutions GmbH & Co. KG.).

Epithelial healing was evaluated by taking slit-lamp photographs every 24 hours until

complete reepithelialization. All outcomes are reported for 3 months postoperatively.

Haze was graded by two ophthalmologists, each masked to the other’s result.

Results:

Mean reepithelialization took 2.20±0.60 days. The postoperative 3-month remaining

mean spherical equivalents were -0.16 ± 1.01 diopters. At the last follow-up, the

uncorrected distance visual acuity was better than 20/25 in 28 eyes (100%) and better

than 20/20 in 22 eyes (82%); 26 eyes (92%) were within ±0.50 D of the attempted

spherical equivalent. Best spectacle-corrected visual acuity was 20/20 or better in 26

eyes. No eye lost Snellen lines of corrected distance visual acuity. Haze developed in 1

eye.

Conclusions:

This study shows tPRK mode using Schwind Amaris is a safe and effective procedure

with rapid epithelial healing. Additional studies are needed to determine long-term

outcomes.

Financial Disclosure:

None

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OftalTech

CLINICAL RESULTS OF LASIK USING SCHWIND AMARIS 750S AND

FEMTO LDV CRYSTAL LINE IN 1,112 MYOPIC EYES

Session Details

Session Title: RSNT/Presbyopia

Session Date/Time: Wednesday 21/09/2011 | 08:00-10:00

Paper Time: 08:36

Venue: Hall A2

First Author: : M.Tomita JAPAN

Co Author(s): : S. Yukawa N. Nakamura T. Nakamura T. Tsuru

Abstract Details

Purpose: To evaluate the visual outcomes, safety, stability, efficacy, and predictability of LASIK

for myopia using SCHWIND AMARIS 750S (SCHWIND Eye-Tech-Solutions GmbH,

(Kleinostheim, Germany) and Femto LDV Crystal Line (Ziemer Group AG, Port,

Switzerland) for corneal flap creation.

Setting: Shinagawa LASIK Center, Tokyo, Japan

Methods: In this retrospective and non-comparative study, 1,112 eyes of 595 patients underwent

LASIK with SCHWIND AMARIS 750S for myopic correction and Femto LDV Crystal

Line for flap creation. The patients mean age was 34.2 ± 7.81 years (range, 17 ~ 65

years) and the mean preoperative manifest refraction spherical equivalent (MRSE) was -

4.48 ± 2.13 D (range, -0.50 ~ -12.00 D), respectively.

Results: At 3 months after LASIK, 80% of the eyes achieved 20/16 or better vision and 97% of

the eyes 20/20 or better. The MRSE was within +/-0.50 D for 94% and within +/-1.00 D

for 99% of the patients. There were no significant post-operative complications.

Conclusions: Our study demonstrated that LASIK using SCHWIND AMARIS 750S and Femto LDV

Crystal Line was highly safe, efficient and predictable for the correction of myopia of

wide range.

Financial Disclosure: ... travel has been funded, fully or partially, by a company producing, developing or

supplying the product or procedure presented

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OftalTech

CORNEAL HIGHER ORDER ABERRATIONS AND REFRACTIVE

OUTCOMES IN LASIK FOR HIGH MYOPIA WITH A SIXTH GENERATION

EXCIMER LASER PLATFORM

Session Details

Session Title: RSNT/Presbyopia

Session Date/Time: Wednesday 21/09/2011 | 08:00-10:00

Paper Time: 08:48

Venue: Hall A2

First Author: A.Vega-Estrada SPAIN

Co Author(s): J. Alio, D. Pi, A. El Aswad

Abstract Details

Purpose: To evaluate corneal higher order aberrations and refractive outcomes after LASIK for the

treatment of high myopia using the Amaris excimer laser

Setting: Vissum Corporation, Alicante, Spain

Methods: 52 eyes of 32 patients (age range 23-61 years) with high level of myopia or myopic

astigmatism (Spherical equivalent ? 7 D) were included. All cases underwent uneventful

LASIK surgery using the Amaris excimer laser (Schwind) and optimized aspherical profiles.

Mean preoperative spherical equivalent was -8.66 (ranging from -6.75 to -13.00 D). The

follow-up period was 6 months. Corneal higher order aberration and Strehl ratio (6-mm

pupil) were recorded and analyzed. Changes in visual acuity and refraction were also

assessed.

Results: Four eyes were excluded from the analysis because of LASIK enhancement for correcting

the residual refractive error during the follow-up. In the remaining eyes (48), a statistically

significant reduction of the spherical equivalent was observed ( p<0.01), distance corrected

visual acuity remained the same or improved in 91.7% of eyes at 6 months after LASIK

surgery. Corneal primary spherical aberration changed from a mean value of 0.21

preoperatively to a mean postoperative value of 0.52 ?m (p<0.01). Mean magnitude of

primary coma also changed significantly from 0.21 to 0.54 ?m postoperatively (p<0.01) In

relation with the spherical-like aberration, a statistically significant change was observed in

the postoperative period (p<0.01). The same was seen with the coma-like aberration

(p<0.01). Regarding corneal Strehl ratio, there was no statistically significant change

between the preoperative 0.107 and postoperative period 0.105 (p=0.81).

Conclusions: Correction of high levels of myopia with a sixth generation LASIK platform significantly

improves refractive status of patients. Even when there is a statistically significant induction

of corneal higher order aberrations, they may not be clinically relevant as they are found to

be within 3 standard deviation of the levels considered as physiological for the normal

population.

Financial Disclosure: None

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OftalTech

CUSTOMIZED TRANS-PRK TO FIX HAZE AND SCARS

Session Details

Session Title: Cornea Surgical

Session Date/Time: Wednesday 21/09/2011 | 08:00-10:30

Paper Time: 10:03

Venue: Strauss 2

First Author: M.Camellin ITALY

Co Author(s): S. Mosquera

Abstract Details

Purpose: To evaluate the use of a single-step optimized Corneal-Wavefront guided TransPRK to

correct corneal opacities and surface irregularities following previous PRK and scars

due to trauma or keratities.

Setting: Dr. Massimo Camellin, SEKAL Rovigo Microsurgery Centre, Rovigo, Italy.

Methods: Retrospective, non-comparative, consecutive case series, 43 eyes underwent Corneal-

Wavefront guided TransPRK for correction of aberrations and refractive errors. All

these cases in past would have had a PTK procedure to eliminate opacities and corneal

irregularities. A single step laser procedure allows a reduction of opacities and surface

irregularities avoiding unwanted sacrifices of tissue. Keratron-Scout topography

(Optikon 2000) and a flying-spot laser (AMARIS; SCHWIND eye-tech-solutions) were

used. Preoperatively, eyes showed opacities and irregular astigmatism 2.5D (SD 3.5)

and corneal wavefront was RMS (5mm) 1.9u (SD 1.2). BCVA pre was 5.8/10 (SD 2.6).

UCVA pre was 2/10 (SD 1.9). Complete ophthalmic examinations were performed

before and after surgery.

Results: The mean age of the patients was 40 (SD 10) years (range 19 to 64 years) at the time of

the surgery. Mean follow-up was 30±15 months (2 to 50 months). Postoperatively, eyes

showed astigmatism 0.9D (SD 0.9) and corneal wavefront RMS (5mm) 1.1u (SD 0.6).

BCVA post was 7.9/10 (SD 2). UCVA post was 5/10 (SD 3). No Snellen lines of

BSCVA lost, and 30 eyes (70%) had an increase of more than 2 lines. Haze was 0 in

almost all eyes, only one eye had a 2 degree haze.

Conclusions: Corneal-Wavefront guided TransPRK using AMARIS is a safe and effective suitable

solution for reducing opacities and high RMS aberrations following haze and scars. This

procedure avoid the unpredictable results of a PTK and solves in a single step the

problems, opacities plus refractive error.

Financial Disclosure: None

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OftalTech

ROLLING AND Z MOVEMENTS MEASURED WITH THE 6D EYE-

TRACKER OF THE SCHWIND AMARIS TOTAL-TECH LASER

Session Details

Session Title: Laser Refractive Surgery.

Session Date/Time: Wednesday 21/09/2011 | 08:00-10:30

Paper Time: 08:18

Venue: Strauss 3

First Author: : M.Arbelaez OMAN

Co Author(s): : S. Arba mosquera

Abstract Details

Purpose: To evaluate intraoperative dynamic eye rolling and z movements among eyes that

underwent LASIK treatments with 6D Eye-Tracking using SCHWIND AMARIS.

Setting: Dr. M.C. Arbelaez, Muscat Eye Laser Center, Muscat, Sultanate of Oman.

Methods: The first few scleral-tracker images obtained when starting the ablation were used as

references (natural rolling and levelling) and compared to any further scleral-tracker

image to determine eye rolling and the axial displacements. The rate of successful

registration was calculated as the ratio between RegisteredEyes and TotalEyes. The

difference between the maximum and minimum eye rolling and axial displacement

values for each eye was taken as a metric of the movement range. Mean values,

standard deviation, and minimum and maximum values were computed for eye rolling

and axial displacement and expressed as percent of treatments, as well.

Results: The rate of successful registration was 90% (52/58 successful registrations). Mean

rolling was 2±3° (-4° to +7°) horizontally and -3±3° (-7° to +1°) vertically. Seventy-

eight percent mean rolling measurements were within 5° horizontally and 70%

vertically. Mean axial displacement was -295±455 ?m (-1129 to +404 ?m). Mean axial

displacement values were >1 mm in 10% of measurements. Mean rolling range during

treatment was 4±2° (1° to 9°) horizontally and 5±2° (range: 1° to 8°) vertically.

Horizontally, 3% rolling ranges were >8°. Mean axial displacement during treatment

was 460±271 ?m (60 to 1188 ?m). Three percent axial displacement ranges were >1

mm.

Conclusions: 6D eye-tracker is valuable because uncompensated rolling movements can induce

decentrations (visually comatic aberrations), whereas uncompensated axial movements

may induce undercorrections asymmetrically. We retrieved 5° for “natural-rolling”, and

observed patients push their heads back at the beginning of the treatment and return to a

more level position during treatment.

Financial Disclosure: ... is employed by a forNoneprofit company with an interest in the subject of the

presentation, ... travel has been funded, fully or partially, by a competing company

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OftalTech

FIRST CLINICAL RESULTS OF TRANSEPITHELIAL PHOTOREFRACTIVE

KERATECTOMY IN MYOPIA

Session Details

Session Title: Laser Refractive Surgery.

Session Date/Time: Wednesday 21/09/2011 | 08:00-10:30

Paper Time: 08:30

Venue: Strauss 3

First Author: M.Kynigopoulos SWITZERLAND

Co Author(s): A. Wild M. B

Abstract Details

Purpose: To evaluate the efficacy of transepithelial photorefractive keratectomy (transPRK) using

the Schwind Amaris excimer laser for the treatment of myopia.

Setting: Vedis Augenlaserzentrum Zurich

Methods: Prospective consecutive clinical study of 41 eyes (22 patients, mean age 32.5 ± 6.9

years) who were treated by transPRK using the aberration free ablation protocol. The

optical zone was 7 mm and standard epithelial thickness (centrally 55 µm and 65 µm in

the periphery) was used. In 12 eyes Mitomycin C 0.02% for 30 seconds was applied.

We report the 3 months results.

Results: Mean refractive spherical equivalent changed from -2.75 ± 1.55 to -0.12 ± 0.22

postoperatively. No patient lost best spectacle-corrected visual acuity. The uncorrected

Snellen distance visual acuity (UDVA) changed from 0.15 ± 0.1 to 1.1 ± 0.13 (range 0.7

-1.2). 40 eyes (97.6%) achieved a UDVA ? 0.8. All eyes had best spectacle-corrected

visual acuity of 1.0 or better. Haze Grade 1 appeared in 4 eyes (reversible with topical

steroid treatment). No patient required an enhancement.

Conclusions: TransPRK appears to be an safe and effective therapeutic option for myopia.

Financial Disclosure: None

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OftalTech

A NEW METHOD OF CORNEA MODULATION WITH EXCIMER LASER

FOR SIMULTANEOUS CORRECTION OF PRESBYOPIA AND

AMMETROPIA: 12 MONTHS RESULTS

Session Details

Session Title: Laser Refractive Surgery.

Session Date/Time: Wednesday 21/09/2011 | 08:00-10:30

Paper Time: 09:24

Venue: Strauss 3

First Author: D.Holland GERMANY

Co Author(s): M. P D. Hepper D. Uthoff

Abstract Details

Purpose: To investigate the outcomes for simultaneous correction of presbyopia and ammetropia

by biaspherical Presby-Lasik technique (PresbyMAX) based on the creation of a central

area hyperpositive for near vision and leaving the midperipheral cornea for far vision in

emmetropic, hyperopic and myopic presbyopic patients.

Setting: 60 eyes of 30 patients were treated with the PresbyMAX technique by one surgeon

(D.U.) at the Augenklinik Bellevue.

Methods: 20 eyes with emmetropic presbyopia, 20 eyes with myopic presbyopia and 20 eyes with

hyperopic presbyopia underwent FEMTO-LASIK and were assessed out to 12 months

postoperatively. Mean patient age was 52 years (range: 45-57 years) for the emmetropic

presbyopic group, 54 years (range: 39- 69 years) for the hyperopic presbyopic group

and 51 years (range: 46-60 years) for the myopic presbyopic group. All eyes underwent

cornea treatment using the PresbyMAX software delivering bi-aspherical multifocal

ablation profiles developed by SCHWIND eye-tech-solutions (Kleinostheim, Germany).

All Flaps were created by Ziemer LDV Femtolaser (Port, Switzerland).

Results: The mean binocular DUCVA improved in the hyperopic group from 0.28±0.29

logMAR to -0.04±0.07 logMAR, in the emmetropic group from -0.05±0.07 logMAR to

0.02±0.11 logMAR and in the myopic group from 0.78±0.27 logMAR to 0.09±0.08

logMAR. The mean binocular NUCVA increased in the hyperopic group from

0.86±0.62 logRAD to 0.24±0.23 logRAD and in the emmetropic group from 0.48±0.14

logRAD to 0.18± 0.11 logRAD. The myopic presbyopes showed a decrease of the mean

binocular NUCVA from 0.04±0.19 logRAD to 0.12±0.18 logRAD.

Conclusions: In presbyopic patients without symptomatic cataract, but refractive errors, PresbyMAX

will decrease the presbyopic symptoms and correct far-distance refraction in the same

treatment offering spectacle-free vision in daily life in most of the treated patients.

Further investigation is necessary to evaluate the overall benefit of this procedure.

Financial Disclosure: None