MYAH

Optical Biometry + Corneal Topography

Build, Manage and Grow
Your Myopia & Dry Eye Practice

LEARN MORE at
topconmyah.com

Myopia greatly
Myopiagreatly impacts
impactsthe
thequality
qualityofoflife
lifeand personal
personal development
developmentof
ofchildren
children. 1.
1

It hashas never
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been aa betterbetter time
time toIt
to joinjoin thethe battle
battle against
against thethe global
global myopia
myopiaepidemic. The
MYAH
is theinstrument
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professionals
interestedepidemic.
MYAH
is perfect
the perfect
instrument
for eyecareprofessionals
in building,inmanaging
growinga myopia
interestedbuilding, andmanaging,andgrowingservice.
a myopia service.

Building a myopia management practicerequires you to educate your patients andtheir families about the implications of myopia
progression, to manage the condition and togrow your service offering.

Overview of MYAH
BUILD YOUR MYOPIA MANAGEMENT SERVICE
MYAH establishes the initial baseline to monitor risk,
allowing you to start the conversation early with parents.

Corneal Topography
including keratoconus
screening andpupillometry

Axial length
measurement using
optical low coherenceInterferometry

Progression reports
for analysing
treatment efficacy

MANAGE: MONITOR AND COMPARE
MYAH provides essential information to monitor eyeelongation and compare axial length measurementswith built-in growth curves.

GROW YOUR MYOPIA MANAGEMENT SERVICE
Offering axial length screening tests may complement
your refraction tests.
Comprehensive suite ofdry eye assessment tools

Patient-friendly
with rapid capture

Compact, space-saving,easy to operate

MYAH offers all the technologies required to support
myopia management: optical biometry, corneal topography
and pupillometry — it is a one-time investment. In addition,
MYAH is an all-in-one device that offers an evolving
platform which provides the tools to add or grow aExclusive axial lengthreference databases

2Myopia and dry eye
questionnaires

dry-eye management service.

3

Introducing MYAH’s Asian Growth Curves

Comprehensive Suite of Analysis

MYAH allows you to monitor the progression of myopia and compare measurements with thegrowth curves for axial length.

The majority of myopic eyes become myopic principally because of excessive axial elongation3.
By using the extensive axial length dataset collected by Erasmus University (Rotterdam, NL)4,or the dataset on Chinese children (Shanghai)5,6, now incorporated into MYAH, you can monitor
axial length and then compare the patient’s data with normative growth curves. You will thus

Dynamic Pupillometry
Provides clear information on thereaction time and size of the pupil, which
may be useful to monitor low dose atropine
compliance or to titrate the dose of atropine. The user can examine pupil centrationand diameter over a range of light levels,
which is useful for Ortho-K and multifocal
lens fittings, and is also informative forpre- and post-refractive surgery.

be able to better understand a child’s risk of myopia in adulthood.

You can now enhance your myopia management
service with MYAH’s growth curves.

Contact Lens Fitting
MYAH provides support for contact lensfitting, reducing the number of lenses thatneed to be trialed on the eye:•	Includes a database of conventional RGPand Ortho-K lenses.
•	Export topography data to 3rd party calculators.
•	Fluorescein simulation with ability tosave and review data.

Corneal Topography
Asian’s Growth Curves

Parents/guardians tend to be familiar withgrowth charts in relation to their child’sheight and weight as a baby, making iteasier to communicate with the parents ofmyopic children.
This is particularly important for children
with pre-and low myopia, where theurgency of intervention is difficult toappreciate based on refractive error alone.

Erasmus’s Growth Curves

Patient Treated JanePatient ID 3263827
Date of Birth 02/21/2004

Gender F

TOPCON MYAH

Exam Date 03/07/2021

OD (Right eye)(Left eye) OS*(M=MYOPIA, HM=HIGH MYOPIA)

Exam Date(mm/dd/yyyy)*(M=MYOPIA, HM=HIGH MYOPIA)
REF: Tideman JWL, Polling JR, Vingerling JR et al. Axial length growth and the risk of developing myopia
in European children. Acta Ophthalmol 2018; 96: 301–309

OD (Right eye)AL [mm]SE [D]

Intervention / Note

04/26/2021

24.91(0.00)-3.00(-0.13)

Stablizing?

03/07/2021

24.91(+0.03)-3.00(-0.13)

Stablizing?

03/14/2020

24.88(+0.02)

03/19/2019

Exam Date(mm/dd/yyyy)(Left eye) OSAL [mm]

SE [D]

04/26/2021

24.82(0.00)-2.63(-0.25)

Stablizing?

03/07/2021

24.82(+0.01)-2.63(-0.13)

Stablizing?

-2.88(-0.13)

03/14/2020

24.81(+0.02)-2.50(-0.25)24.86(+0.04)-2.75(-0.13)03/19/2019

24.79(+0.06)-2.25(-0.25)03/04/2018

24.82(+0.05)-2.63(-0.13)03/04/2018

24.73(+0.10)-2.00(+0.13)03/12/2017

24.77(+0.05)-2.50(-0.13)03/12/2017

24.63(+0.04)-2.13(-0.25)(This table only shows the last 6 exams)

MYAH offers another range of tools toanalyse the anterior cornea, including
topographic maps, 3D maps, comparisonmaps, height maps, Zernike analysis
and keratoconus screening.

Intervention / Note

(This table only shows the last 6 exams)

Notes:

Hi Jane,It was so nice to see you again! Look at the orange
and green lines to see how your eyes are growing.
Continue wearing your special contact lenses every
day as prescripted.

Corneal Aberration Summary
The Zernike expansion coefficient is used todetermine which component(s) dominate
the aberration structure of the cornea andto what degree. The anterior corneal Zernike summary consists of 36 polynomials up
to the 7th order and provides a clear view ofthe optical irregularities that can impact
the quality of vision.

MYAH V1.0.6 SN: 13900000(139200027) 2021/04/26 14:43:55

45

Comprehensive Reports with Questionnaires

Dry Eye Assessment Tools
MYAH also offeres variety of features suchas non-invasive tear breakup time (NIBUT),
Meibomian gland imaging with the area ofloss analysis, tear meniscus height analysis,
blink analysis, real fluorescein imaging andits video acquisition. NIBUT function allows
to capture and play the video of the time
evolution of break up times. The sector iscolord by time percentage. It enables to review results, to print and to export reports
on network or USB.

RX/AL Trend Report
Patient

MEA TEST_002_StandardTrend

Patient ID ID_MEATEST002
01/01/2000 (dd/mm/yyyy)

Date of birth

OD

Clinic Name test
Gender M
Age 23y 4m
Baseline date 01/01/2006
Report date 05/05/2023

Dry eye report

MYOPIA Clinic

Patient MYAH DEMO

Gender M

Patient ID PATDEM11112011
Date of BirthOS

Age 22yExam Date 13/10/2014

11/11/2001 (dd/mm/yyyy)

Report Date 01/12/2023

OD

OS

NIBUT

DEQ-5 QUESTIONNAIRE

sec.

NIBUT analysis

TMH

1.4 s
> 13.40 s
2.3 s
> 5.7

FIRST NIBUT
NIBUT 5%IBI
OPI

1.5 s
5.5 s
2.3 s
2.3

Average (mm)Min. (mm)Max. (mm)Variability (SD in mm)

0.15
0.12
0.20
0.03

*(M=MYOPIA, HM=HIGH MYOPIA)
Coordinates incorporated in this Myopia device are the most recent available data and originate from the Myopia Research Group of Erasmus MC, Rotterdam

Refractive Error [D]Axial Length [mm]Refractive Error [D]Axial Length [mm]

0.16
0.10
0.27
0.05

OSDI QUESTIONNAIRE

MEIBOMIAN GLANDS

Myopic Parents:1Outdoor

Close work

Meib. % loss
8%
12%Upper eyelid
Lower eyelid

Meib. % loss
6%
17%
KEY

Meibomian Grand analysis

Tear Meniscus height analysis

FIRST NIBUT
IBI
Meib. % loss
NIBUT
NIBUT 5%OPI
TMH

RX/AL Trend (v1.1.0 Questionnaires + RX/AL and Dry-eye reports 002) i-MAP Pro - E SN: 03042311284

The first tear break-up observed (sec)
Average Inter-blink interval (sec)
Meibomian glands area of loss (%)
Non-invasive tear break-up time
Mean 5% tear break-up time (sec)Ocular Protection Index (ratio between ∆5% level NIBUT and IBI)
Tear Meniscus Height (mm)i-MAP Pro - E V1.1.0 SN: 270423125152(139200001) 2023/12/01 16:48:27

New! Questionnaires on Myopia & Dry Eye
Discover the latest additions to MYAH’s services:a new myopia questionnaire along with twocomprehensive dry eye questionnaires: DEQ-5

Dry Eye Follow-Up Report

Dry Eye Follow-Up Report

Patient Dry EYE follow up test000
Patient ID DryEyeFollowUp_Test000
Date of BirthPatient Dry EYE follow up test000
Gender M

Age 61y 1mOD

systematically track data over time and are

TMH

・ Number of Myopic patients.

・ Average hours per day spend outdoor - outside regular school work.

OS・ Average hours per day spend on close work (reading, electronic devies, etc) - outside regular school work.

0.25
0.09
0.3
0.06

0.21
0.14
0.37
0.06

02/17/2023 02:24:48 PM

TBT 5%-3.30s (-67.35%)

FIRST TBT

+0.30s (+27.27%)

IBI

N.A.

OPI

N.A.

MEIB UPPER % LOSS

N.A.

MEIB LOWER % LOSS

+22.00% (+84.62%)

seamlessly integrated into our enhanced reports.
Average (mm)Min.(mm)Max. (mm)S.D. (mm)Date of Birth

06/07/2021 05:06:06 PMand OSDI. These insightful questionnaires help

Myopia Quesions

Patient ID DryEyeFollowUp_Test000

Report Date 08/03/2023

06/18/1962 (mm/dd/yyyy)

06/07/2021 05:06:06 PM

02/17/2023 02:24:48 PM

DEQ-5 Questions

・ During a typical day in the past month, how often did your eyes feel discomfort?

・ When your eyes felt discomfort, how intense was this feeling of discomfort at the end of the day, within two hours of going to bed?
・ During a typical day in the past month, how often did your eyes feel dry?

・ When your eyes felt dry, how intense was this feeling of dryness at the end of the day, within two hours of going to bed?

・ Have you experienced any of the following during the last week:(Eyes that are sensitive to light?/Eyes that feel gritty?/Painful or sore eyes?/Blurred vision?/Poor vision?)・ Have problems with your eyes limited you in perfoming any of the following during the last week :(Reading?/Driving at night?/Working with a computer or bank machine(ATM)?/Watching TV?)・ Have your eyes felt uncomfortable in any of the following situations during the last week :(Windy conditions?/Places or areas with low humidity(very dry?)/Areas that are air conditions?)

6TMH
Average (mm)Min.(mm)Max. (mm)S.D. (mm)

0.23
0.1
0.39
0.09

0.1
0.09
0.12
0.01

-2.70s (-64.29%)

FIRST TBT

+0.10s (+8.33%)

IBI

N.A.

OPI

N.A.

MEIB UPPER % LOSS

N.A.

MEIB LOWER % LOSS

+15.00% (+44.12%)・ During a typical day in the past month, how often did your eyes look or feel excessively watery?
OSDI Quesions

TBT 5%06/18/1962 (mm/dd/yyyy)

Gender M

Age 61y 1m

Report Date 08/03/2023

06/07/2021 05:06:06 PM02/17/2023 02:24:48 PM

OSDI QUESTIONNAIRE
OSDI SCORE

DEQ-5 QUESTIONNAIRE
DEQ-5 SCOREKEYNITBUT
TBUT 5%
1st TBUT
IBI
OPI
MEIB % Loss
TMH

i-MAP Pro - E V1.1.0 Beta 02 SN: 030423112846(139200093) 2023/08/03 15:22:17

1/2

Non-invasive tear break-up time
Mean 5% tear break-up time (sec)
The first tear break-up observed (sec)
Average Inter-blink interval (sec)Ocular Protection Index (ratio between ∆5% level NITBUT and IBI)
Meibomian glands area of loss (%)
Tear Meniscus Height (mm)i-MAP Pro - E V1.1.0 Beta 02 SN: 030423112846(139200093) 2023/08/03 15:22:17

2/27

MYAH SPECIFICATIONFEATURE

SPECIFICATION

Keratoscopic cone

24 rings equally distributed on a 43 D sphere

Analyzed points

Over 10,000

Measured points

Over 6,000

Corneal coverage

Up to 9.8 mm on a sphere of radius 8.00 mm (42.2 D with n=1.3375)

Axial Biometry

Low-coherence interferometry on optical fiber (SLED @ 820 nm)

Capture system

Guided-focus

Database

Internal

Pupillometry

Dynamic, Photopic, Mesopic, Scotopic

Fluorescein

Image, VideoReports

Keratometry, comparison map, contact lens, height map, Zernike analysis, pupillometry, Meibomian glands, tear film
break-up time, tear meniscus height, Rx/AL trend analysis, fluorescein, parental, dry eye summary & dry eye follow-up report

Working environment

10 °C – 40 °C, Relative humidity 8 – 75% (no condensing), Atmospheric pressure 800 – 1060 hPa

Power supply

AC 100 – 240 V 50/60 Hz

Power consumption

100 VA

Dimensions

320 mm (W) x 490 mm (H) x 470 mm (L), 18 Kg

Printing options

USB printer, Network printer, PDF on network shared folder, PDF on USB
PDF or Image on network folder or on USB

Operating System

Windows embedded

Monitor

LCD 10.1 inch capacitive touch screenRAM

At least 4 GB

Hard Disk

At least 500 GB

External connections

LAN integrated, 2x USB

INFORMATION ON MEASUREMENTS
MEASUREMENTMEASURING RANGEDISPLAY RESOLUTION

IN VIVO REPEATABILITY

Radius of curvature

5.00 – 12.00 mm

0.01 mm±0.02 mmCurve Radius in Diopter (D)(n=1,3375)

28.00 – 67.50 D

0.01 D±0.12 D

Axial Length

15.00 – 36.00 mm

0.01 mm±0.027 mm

Pupil dimension

0.50 – 10.00 mm

0.01 mm

N/A

Limbus (White-To-White)

8.00 – 14.00 mm

0.01 mm±0.05 mm

IBI Index (Interblink Interval)

0.2 – 20.0 s

0.1 s

N/A

Non-invasive Break-Up Time (TBT)

0.5 – 30.0 s

0.1 s

N/A

Meibomian Glands area of loss

0 – 100%

1%

N/A

0.10 – 1.00 mm

0.01 mm

N/A

Keratometry

Tear Meniscus HeightNot all products, services or offers are approved or offered in every market, and products vary from one country to another. Contact your local distributor for country-specific information.
1. Report of the Joint World Health Organization-Brien Holden Vision Institute. Global Scientific Meeting on Myopia. The Impact of myopia and high myopia. University of New South Wales, Sydney, Australia. 16-18 March 2015.
2. Holden,
BA, Fricke, TR, Wilson, DA et al. Global prevalence of myopia and high myopia and temporal trends from 2000 through 2050. Ophthalmology. 2016; 123:1036–42. Available from: doi: DOI: 10.1016/j.ophtha.2016.01.006
3. ( Gifford KL, Richdale K, Kang P, Aller TA, Lam CS, Liu YM, Michaud L, Mulder J, Orr JB, Rose KA, Saunders KJ, Seidel D, Tideman JWL, Sankaridurg P. IMI - Clinical Management Guidelines Report. Invest Ophthalmol Vis Sci.
2019 Feb 28;60(3):M184-M203.).
4. Coordinates incorporated in this Myopia device are the most recent available data and originate from the Myopia Research Group of Erasmus MC, Rotterdam
5. Courtesy of Prof. Xu Xun, MD
6. He X, Sankaridurg P, Naduvilath T, Wang J, Xiong S, Weng R, Du L, Chen J, Zou H, Xu X. Normative data and percentile curves for axial length and axial length/corneal curvature in Chinese children and adolescents aged 4-18 years.
Br J Ophthalmol. 2023 Feb;107(2):167-175

IMPORTANT

Subject to change in design and/or specifications without advanced notice. In order to obtain the best results with this instrument,
please be sure to review all user instructions prior to operation. Medical device MDR Class IIa. Manufacturer: VISIA imaging S.r.l.

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