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NR 1-3/2005
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Wektorowa analiza
chirugicznie indukowanego astygmatyzmu po łączonych operacjach
fakoemulsyfikacji, wszczepieniu sztucznej soczewki
wewnątrzgałkowej i witrektomii przez płaską część ciała
rzęskowego
Vector analysis of surgicaly
induced astigmatism after phacoemulsification, PC IOL
implantation and pars plana vitrectomy
Sławomir Cisiecki, Jerzy Nawrocki
Z Kliniki Okulistycznej „Jasne Błonia” w Łodzi
Kierownik: prof. dr. hab. n. med. Jerzy Nawrocki |
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| Summary: |
Background: To
evaluate the changes in corneal shape after
phacoemulsification, PC IOL implantation and pars plana
vitrectomy.
Material and methods: This study comprised 25
eyes of 25 patients who received phacoemulsification,
5.5mm PMMA IOL implantation through 6 mm clear cornea
incision with one single suture, and pars plana
vitrectomy in one step – group A. To unique and compare
the differences in surgical induced astigmatism (SIA)
between combined procedures and two steps procedures, 2
control groups in one step surgery (only
phacoemulsification with PCIOL – group B or only pars
plana vitrectomy – group C) with the same shape and
location of incision in cataract surgery and sclerotomy
sites were analyzed.
Results: The highest value of SIA was in group A
which was not statistic significant different than group
B (p=0.97). In-group C, SIA was the lowest, and there
was also not significant difference between groups A
(p=0.063). The differences in SIA between group B and C
were statistic irrelevant too. (P=0.09) Shifts in axis
to with the rule component were noted in 43.9 % of cases
in-group A, 40.79% in-group B, and 58.96 % in-group C.
The highest shift in axis to against the rule meridian
was observed in-group B (tab. 2) and in direction with
the rule in-group C.
Conclusions: No statistical significance was
observed in the amounts of the induced astigmatism and
refractive cylinder among the group of combined
phacoemulsification, IOL implantation and pars plana
vitrectomy. However, optical rehabilitation can be
delayed by a postoperative astigmatism. |
| Słowa kluczowe: |
operacje łączone,
astygmatyzm pooperacyjny, analiza wektorowa. |
| Key words: |
combined surgery,
postoperative astigmatism, vector analysis. |
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