dr. coşkunseven "the new keraring 340 degree segment"
DESCRIPTION
Dr. Dr. Coşkunseven presentation at Mediphacos speaker corner 2014 ESCRS, LondonTRANSCRIPT
Efekan Coskunseven, MDDunya Eye HospitalIstanbul TURKEY
Saturday –
Booth G15 at 4pm
ESCRS
LONDON
2014
Total reflection
At ring base
Shadow on
iris
90º
160º 210º
120º
Grade I, II, III keratoconus
patients
Older than 18 years of age
Contact lens intolerance
Corneal thickness at least 400µ
at tunnel location
ADVENCED CENTRAL CONE
, PARA CENTRAL CONE
Keratometer readings ≥ 65D
severe atopic patients
corneal dystrophies,
hydropse, corneal opacities,
herpetic keratitis
collagen vascular,
autoimmune diseases, other
systemic diseases,
Patients that could not return
for follow-ups
Patient Inclusion
Criteria
PRPREOP
PRE-OP
PRE-OP
Steep Axis: 97
Min Corneal Thickness: 517
Oto Ref: -8,00-4,50x 180
UCVA: 0,02 BCVA:0,05
Standart Intralae Settings
Inner Diameter: 4,8 mm
Outer Diameter: 6,8 mm
Incision Axis: 97
Energy: 1,5 mJ
Depth: 370 micrometer
340 degree
300 micron
POST-OP
POST-OP
Oto Ref: -3,00—1,25x15
UCVA: 0,4
BCVA:0,5
DIFFERENCE MAP
61,5-45: 16,5 D52,2-44,1: 8,1 D
11,3 D
12,3 D
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
Pre-Op Post-340 K
0.05
0.4
0.24
0.5
UCVA-BCVA
UCVA
BCVA
UCVA BCVA
Pre-Op 0,05 0,24
Post-340 K 0,4 0,5
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
Pre-Op Post-340 K
-4.38
-2.25
-9.26
-3.24
D
Cylinder & SEQ
CYL
SE
CYL SE
Pre-Op -4,38 -9,26
Post-340 K -2,25 -3,24
51.8
43.8
K1
K1
Pre-Op 51,8
Post-340 K 43,8
K2
Pre-Op 55,6
Post-340 K 47,4
55.6
47.4
K2
53.7
45.6
Mean K
Mean K
Pre-Op 53,7
Post-340 K 45,6
KeraRing 340 implantation is an effective and a safe method for the improvement of UCVA and BCVA in CENTRAL OR PARACENTRAL CONE keratoconic eyes .
Effectiveness is about 7 D central flattening with 200 micron segment
About 13D with 300 microns.
However a long-term follow-up of a larger population study is required to validate these findings
