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eISSN: 2719-3209
ISSN: 0023-2157
Klinika Oczna / Acta Ophthalmologica Polonica
Bieżący numer Archiwum Filmy Artykuły w druku O czasopiśmie Suplementy Rada naukowa Bazy indeksacyjne Prenumerata Kontakt Zasady publikacji prac Standardy etyczne i procedury
4/2020
vol. 122
 
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Artykuł oryginalny

Influence of corneal cross-linking on visual acuity and topometric indices in keratoconus

Magdalena Maleszka-Kurpiel
1, 2
,
Andrzej Michalski
3
,
Marta Robak
1
,
Wojciech Warchoł
2

1.
Optegra Eye Health Care Clinic in Poznan, Poland
2.
Department of Optometry, Chair of Ophthalmology and Optometry, Poznan University of Medical Sciences, Poland
3.
Department of Ophthalmology, Chair of Ophthalmology and Optometry, Poznan University of Medical Sciences, Poland
KLINIKA OCZNA 2020, 122, 4: 165–170
Data publikacji online: 2020/12/17
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Aim of the study
To assess the impact of corneal cross-linking (CXL) in keratoconic eyes on uncorrected (UCVA) and best corrected (BCVA) distance visual acuity, selected corneal parameters measured with a Scheimpflug imaging system, intraocular pressure (IOP) and endothelial cell density (ECD).

Material and methods
71 eyes of 61 patients treated with CXL were included in the study. Each patient underwent optometric and ophthalmological examination with corneal tomography. Data from the qualifying visit and 1-year post-surgery examination were analyzed.

Results
Comparative analysis of the pre-operative and 1-year post-operative evaluation showed improvement in median UCVA of –0.1 (logMAR) and median BCVA of –0.06 (logMAR). Manifest spherical equivalent showed a median change of almost 0.4 D and the power of the manifest cylinder did not change. The regression in the anterior keratometry steep meridian was greater than in the flat meridian, –0.9 D and –0.6 D respectively. The median Kmax change value was –1.2 D. Topometric indices analysis showed improvement in corneal symmetry. We did not observe changes in IOP and ECD.

Conclusions
CXL is a safe procedure, improving visual acuity, both uncorrected and corrected, and normalizing corneal parameters.

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