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NR. 2/2007
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Obserwacja stożka
rogówki u pacjentów noszących sztywne gazoprzepuszczalne
soczewki kontaktowe – wyniki wstępne
Keratoconus Observation in
Patients Wearing Rigid Gas Permeable Contact Lenses –
Preliminary Results
Piotr Szymanek1, Agnieszka
Samsel1,2
1ACL – Vision-Okuliści – NZOZ, Warszawa
Kierownik: lek. med. Piotr Szymanek
2Katedra i Klinika Okulistyki Akademii Medycznej w
Warszawie
Kierownik: prof. dr hab. n. med. Dariusz Kęcik |
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| Summary: |
Purpose: Evaluation
of the keratoconus progression using corneal topography
in patients wearing rigid gas permeable contact lenses.
Material and method: 37 patients (3 women, 34 men)
aged 17-56 years with keratoconus were examined.
Patients were wearing rigid gas permeable multicurved
contact lenses (ROSE K, McGuire, Woodward, Nova Gas, LD
Aspheric, LD Toric – by David Thomas, or Asfeerflex – by
Microlens). The follow-up time was 12-35 months, mean 15
months. Every 6 months patients underwent ophthalmologic
examination and corneal topography (videokeratography)
using Optopol PT-100. Central keratometric data,
eccentricity, shape and surface of the keratoconus were
evaluated.
Results: Mean central astigmatism changed from
9.03±0.67 D to 5.35±0.77 D. Topography analysis revealed
stabilization in 52 eyes (70%), regression in 16 eyes
(21%) and progression in 6 eyes (8%).
Conclusions: Rigid gas permeable contact lenses
generally give stabilization or regression of
keratoconus without causing morphological changes. |
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| Key words: |
keratoconus –
videokeratography – corneal topography – central
astigmatism – eccentricity – keratoconus progression –
contact lenses – rigid gas permeable contact lenses –
RGP. |
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