Abstract
Purpose
To confirm the possible mechanism by which topical prostaglandin antiglaucoma drugs cause a deep superior sulcus.
Methods
Among patients who used bimatoprost (Lumigan), latanoprost (Xalatan), or travoprost (Travatan) and who developed a deep upper lid sulcus, 18 eyes of 11 patients (mean age, 58.2 ± 8.9 years) were studied. Seven patients were binocular users of one of the eye drops and four were monocular users. Preaponeurotic orbital fat was obtained, and the mean adipocyte density compared. Results: In the four monocular users, mean adipocyte density of treated eyes was 1758.21 ± 158.15 cells/mm2, and that of untreated eyes was 1258.73 ± 127.54 cells/mm2. This difference was statistically significant (P = 0.04), suggesting that the adipocytes were atrophied in the treated eyes. The mean adipocyte density of the bimatoprost group was 2073.35 ± 184.89 cells/mm2, that of the travoprost group was 1623.46 ± 218.99 cells/mm2, and that of the latanoprost group was 1468.20 ± 113.44 cells/mm2. The densities of the bimatoprost and travoprost groups, but not of the latanoprost group (P = 0.75), were significantly different from that of the untreated group (P < 0.001).
Conclusions
Fat atrophy can be considered a mechanism of upper eyelid sulcus deepening in patients using topical prostaglandin analogs.
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Park, J., Cho, H.K. & Moon, JI. Changes to upper eyelid orbital fat from use of topical bimatoprost, travoprost, and latanoprost. Jpn J Ophthalmol 55, 22–27 (2011). https://doi.org/10.1007/s10384-010-0904-z
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DOI: https://doi.org/10.1007/s10384-010-0904-z