Increased Ocular Pulse Amplitude Associated with Unilateral Dysgenesis of the Orbital Roof

Introduction: Two patients (one with neurofibromatosis type 1) presented with unilateral ocular pulsation. Methods: A CT scan of the orbits revealed extensive dysgenesis of the orbital roof with herniation of the frontal lobe into the orbit in both cases. PASCAL dynamic contour tonometry was performed. Results: The ipsilateral ocular pulse amplitude (OPA) was greater than the contralateral side, and the ocular pulse waveform morphology more closely approximated the known intracranial waveform in these patients. Conclusions: We hypothesize that the greater OPA was due to stronger transmission of the intracranial pressure waveform amplitude and morphology in the absence of the orbital roof.

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Intraocular Pressure and Ocular Pulse Amplitude Comparisons in Different Types of Glaucoma Using Dynamic Contour Tonometry

Current Eye Research ◽

10.1080/02713680600899887 ◽

2006 ◽

Vol 31 (10) ◽

pp. 851-862 ◽

Cited By ~ 42

Author(s):

Omar S. Punjabi ◽

Hoai-Ky V. Ho ◽

Christoph Kniestedt ◽

Alan G. Bostrom ◽

Robert L. Stamper ◽

...

Keyword(s):

Intraocular Pressure ◽

Pulse Amplitude ◽

Dynamic Contour Tonometry ◽

Ocular Pulse Amplitude ◽

Different Types ◽

Ocular Pulse

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Travoprost- and Tafluprost-induced Changes in Intraocular Pressure and Ocular Pulse Amplitude

Journal of the Korean Ophthalmological Society ◽

10.3341/jkos.2021.62.9.1235 ◽

2021 ◽

Vol 62 (9) ◽

pp. 1235-1242

Author(s):

Gyeong Min Lee ◽

Seung Joo Ha

Keyword(s):

Intraocular Pressure ◽

Open Angle Glaucoma ◽

Pulse Amplitude ◽

Applanation Tonometry ◽

Dynamic Contour Tonometry ◽

Long Term Effects ◽

Ocular Pulse Amplitude ◽

Induced Changes ◽

First Time ◽

Ocular Pulse

Purpose: To compare the intraocular pressure reduction and changes in ocular pulse amplitude of travoprost 0.003% and tafluprost 0.0015%. Methods: We assessed patients who were diagnosed with open-angle glaucoma from January 2017 to July 2019 for the first time at our hospital. Forty-two eyes were assigned to the travoprost group (23 patients) and 26 eyes were assigned to the tafluprost group (14 patients). Changes in intraocular pressure were measured by Goldmann applanation tonometry (GAT), and corrected ocular pulse amplitude (cOPA) was measured using dynamic contour tonometry. Changes in these parameters were observed and compared for 1 year. Results: No significant differences were observed between the GAT measurements and the cOPA of patients treated with travoprost and tafluprost for 1 year (p = 0.512, p = 0.105). The change in initial intraocular pressure on GAT observed after 1 week was -5.32 ± 2.63 mmHg for travoprost and -3.79 ± 3.19 mmHg for tafluprost (p = 0.0457). The initial change in cOPA was +0.04 ± 0.9 mmHg in the travoprost group and -0.76 ± 0.97 mmHg in the tafluprost group (p = 0.0028). Conclusions: Travoprost and tafluprost reached the targeted intraocular pressure with no difference in the long-term effects of reduced intraocular pressure. However, travoprost was initially better at lowering intraocular pressure faster, and tafluprost had a greater effect on lowering OPA. Prostaglandin analogs can be selected individually by considering the aforementioned factors.

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