... surface of a
hydrogel lens.
18 Colenbrander MD. Calculation of the power of an
iris-clip lens for distance vision. Br J Ophthalmol
1973 ;57 :7 35 40.
19 Binkhorst RD. Pitfalls in the determination of ... 1993;231:449 52 .
7 Kohnen T, Koch DD. Experimental and clinical
evaluation of incision size and shape following forceps
and injector implantation of a three-piece high-
refract...
... eyes
100
75
50
25
0
No DR NPDR QPDR
Severity of retinopathy at the time of surgery
% patients achieving
postoperative VA>=6/12
APDR
100
No Maculopathy
75
50
25
0
No DR NPDR QPDR NPDR QPDR
Severity of ... a
number of problems often coexist that make
cataract surgery challenging. Pupil dilatation
may be poor, particularly in the presence of
CATARACT SURGERY IN COM...
... and viscoelastics 84
8 Non-phacoemulsification cataract surgery 102
9 Anaesthesia for cataract surgery 1 15
10 Cataract surgery in complex eyes 1 25
11 Vitreous loss 158
12 Postoperative complications ... the level of the microscope eyepieces).
Series Editor:
Susan Lightman
Fundamentals of
Clinical Ophthalmology
Cataract Surgery
Andrew Coombes and David Gartry
The...
... (%)
Sculpting 30–40 15 20 50 –70 Linear
Quadrant 70– 150 20– 25 50–70 Pulsed
Removal
Central depth with
downslope sculpting
Figure 5. 7 Profile of “Divide and conquer” groove.
Note the region of “down-sculpting”, ... visualize
the capsulonhexis in cataract sugery. J Cataract Refract
Surg 1999;24:7–9.
12 Pandey SK, Werner L, Escobar-Gomez M, Roig-Melo EA,
Apple DJ. Dye-enhanced cat...
... 37°C)
Aqueous 153 2
Vitreous 153 2
Cataractous lens 1640
Intumescent cataract 159 0
Phakic eye (mean velocity) 155 0– 155 5
Aphakic eye (mean velocity) 153 3
Pseudophakic eye (mean velocity) 155 3
Lens implant ... is
982 m/s). Because the A-mode system assumes
a velocity of 153 2 m/s in the vitreous and the
B-mode system assumes an average velocity in
tissue of either 154 0 m/s or 155 0...
... 2001;20 :58 0 5.
104 Epstein RJ. Combining keratoplasty and cataract
surgery. J Cataract Refract Surg 1999; 25: 603.
1 05 Tomey KF, Al-Rajhi AA. Neodymium YAG laser
iridotomy in the initial management of ... visual
impact of a cataract on a preverbal infant. The
CATARACT SURGERY IN COMPLEX EYES
151
Figure 10.28 Altered red reflex in a typical
congenital cataract.
VITREOUS...
...
(mm) in population formula(e)
< 22·0 8% Hoffer Q
22·0–24 5 72% Average
Holladay, Hoffer
Q, and SRK T
24 5 26·0 15% Holladay
> 26·0 5% SRK T
CATARACT SURGERY
86
haptic lenses is that they can ... Unfortunately, the same attribute
CATARACT SURGERY
96
7
Healon (Cohesive)
6
5
4
3
2
-3 - 2-1 0123
Space
occupying
Instrument
movement
Removal
Log shear rate (sec
-1
)
Log...
... Botulinum
toxin A-induced protective ptosis in corneal disease
Ophthalmology 1988; 95: 473–80.
Lee OS. Operalion for correction of everted lacrimal puncta.
Am J Ophthalmol 1 951 ; 34 :57 5.
May M. Facial ... revisionary surgery.
Lasers in oculoplastic surgery
The use of lasers in oculoplastic surgery has
become increasingly widespread of late. Two
lasers are at present pre-emine...