clinical experience with the tracey vfa in brazil
DESCRIPTION
Clinical Experience with the Tracey VFA in Brazil. Renato Ambrósio Jr. Universi dade de São Paulo Oftalmologia. Instituto Benjamin Constant. Rio de Janeiro. Why should I buy a wavefront analyzer?. Goals of the Preop exam in refractive surgery. Screening refractive candidates - PowerPoint PPT PresentationTRANSCRIPT
Clinical Experience Clinical Experience with the Tracey VFA with the Tracey VFA
in Brazilin BrazilRenato Ambrósio Jr.Renato Ambrósio Jr.
Universidade de São PauloOftalmologia Instituto
Benjamin Constant
Rio de JaneiroRio de Janeiro
Why should I buy a Why should I buy a wavefront analyzer?wavefront analyzer?
Screening refractive candidatesScreening refractive candidates Patient educationPatient education Surgical PlanningSurgical Planning
R.Ambrósio Jr, M.D.
Goals of the Preop exam in Goals of the Preop exam in refractive surgeryrefractive surgery
Screening refractive candidatesScreening refractive candidates
Complete eye examComplete eye exam Complementary examsComplementary exams Interview with the patientInterview with the patient
R.Ambrósio Jr, M.D.
R.Ambrósio Jr, M.D.
Preop exam in refractive surgeryPreop exam in refractive surgeryWhich exams should we do?Which exams should we do?
0.9% of the candidates had keratoconus 0.9% of the candidates had keratoconus or pellucid marginal degenerationor pellucid marginal degeneration
UW Refractive ClinicUW Refractive Clinic Study Study
R.Ambrósio Jr, M.D.
R.Ambrósio Jr, M.D.
R.Ambrósio Jr, M.D.
CT View – Scales for CT View – Scales for Corneal TopographyCorneal Topography
KERATOMETRY
CORNEAL TOPOGRAPHY
REFRACTION
WAVEFRONT
R.Ambrósio Jr, M.D.
Advantages of Tracey-VFA for Advantages of Tracey-VFA for screening refractive candidatesscreening refractive candidates
Accurate Refraction ~ 0.01 D (vs 0.25D)Accurate Refraction ~ 0.01 D (vs 0.25D) Manifest and Cycloplegia comparisonManifest and Cycloplegia comparison Identification of high risk cases for night Identification of high risk cases for night
vision problems after conventional vision problems after conventional ablations (HOA and Total Aberrations)ablations (HOA and Total Aberrations)
Integrated analysis with Corneal Integrated analysis with Corneal Topography (CTView V.5 software)Topography (CTView V.5 software)
R.Ambrósio Jr, M.D.
Screening refractive candidates with the Tracey VFA – Bad candidate (BSCVA 20/15-2)
PSFPSF Simulation for Patient education Simulation for Patient education
All Aberrations Only HOA
Bad candidate (BSCVA 20/15-2)
Screening refractive candidates with the Tracey VFA
Instituto de Olhos Renato AmbrósioRio de Janeiro
All Aberrations Only HOA
PSFPSF Simulation for Patient education Simulation for Patient education
Qualidade da Visão
R.Ambrósio Jr, M.D.
Integrated Analysis with the CT ViewWF – Topo = Intraocular Optics
Clinical Applications: Monocular Clinical Applications: Monocular Diplopia – Poor CL Fit after PKPDiplopia – Poor CL Fit after PKP
Contact Lens Migrate Inferiorly causing diplopiaContact Lens Migrate Inferiorly causing diplopia
Aplicações do WavefrontAplicações do WavefrontEntendendo as queixas do pacienteEntendendo as queixas do paciente
Importance of ScalesImportance of Scales
Effect of the Scan SizeEffect of the Scan Size
Effect of the Scan SizeEffect of the Scan Size
Instituto de Olhos Renato AmbrósioRio de Janeiro
Irregular eyes measured with Tracey
Instituto de Olhos Renato AmbrósioRio de Janeiro
Irregular eyes measured with Tracey
Validação de Exames que não utilizam Validação de Exames que não utilizam Iluminação InframermelhaIluminação Inframermelha
COLVARD LOW LIGHT vs ADJUSTED AUTO TOPOGRAPHY
2
3
4
5
6
7
8
2 3 4 5 6 7 8
Colvard Low Light Pupil Size (mm)
Ad
just
ed A
uto
To
po
gra
ph
y P
up
il m
easu
rem
ent
(m
m)
r= 0.68
Pupil Measurements with the Tracey VFAPupil Measurements with the Tracey VFA
Instituto de OlhosRenato Ambrósio
