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►亞洲學童角膜塑型術後鐵質沉積角膜之研究◄
第二屆世界華人眼科學術大會
亞洲學童角膜塑型術後鐵質沉積角膜之研究
張朝凱、戴文瑛*、吳怡璁＊＊
台北博仁醫院、台北諾貝爾眼科診所＊台北柏克萊眼科診所**
Purpose：The
study aim at looking into the condition of iron deposit in corneas of Asia
children post orthokeratology treatment. Previous related reports have
been on post hyperopic photorefractive keratectomy, normal post laser in
situ keratomileusis, post radial keratotomy and most popular on advanced
keratoconus patients.
Method：We
evaluated 20 eyes with faint laterally position brownish line on the lower
portion of the cornea following orthokeratology treatment. Patients were
analyzed with respect to pre-treatment spherical equivalent, attempted
correction, and post-treatment time interval.
Results：No
statistically significant data between the attempted correction with this
phenomena. However, iron deposit usually shoes up with 6 months since
treatment starts and it bears no adverse effect on the orthokeratology
procedure itself.
Conclusion：This
epithelial or sub-epithelial phenomena is believed to be due to corneal
topography and lid-cornea interface with tear distribution. At this time,
its precise histochemistry, cause, source, and natural history are still
unknown. All patients have no subjective complaints along with this
condition and visual performance remain to optimal. Further research is
being conducted to collect more detail information.
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