The Assessment of Orbital Apical Temperature Change With Local Cool Compress Application

Lee, Hui Bae Harold; Shoshani, Yochai Z.; Sokol, Jason A.; Smith, Heather; Stevens, Eric G.; Nunery, William R.

doi:10.1097/iop.0b013e318220f127

Cited by 2 publications

(3 citation statements)

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“…Vasoconstriction of the blood vessels may be responsible for the decrease in the tissue thickness, including choroids where the blood vessels are extremely dense. Lee et al noted that the temperature dropped to <37°C in the eye after 10 min of local cold compress application (11) . Furthermore, Shepherd et al showed that cooling between 28°C and 37°C causes the vessels to contract by increasing the adrenoreceptor sensitivity (7) .…”

Section: Discussionmentioning

confidence: 99%

“…After all these measurements were made, the participants had the cold packs administered to them (TheraPearl Eye-ssential Mask, Bausch & Lomb) for 10 min (Figure 1) (The pack dimensions were 9 x 2.75 inches, and the pack was filled with pliable gel pearls). Before application, the mask was left in a freezer set to 0°C (32 Fahrenheit) for 2 h; the temperature was selected based on the recommendations of a similar study published by Lee et al (11) . After the application, the previous measurements were repeated in the same order and under the same conditions.…”

Section: Measurementsmentioning

confidence: 99%

“…Cold compress application packs have recently been produced with this purpose in mind. Some studies have suggested that it can be used to reduce the nerve destruction associated with optic neuropathy (11) to reduce the complications of iridoplasty (12) and in conjunction with analgesia before intravitreal injection (13) . In the present study, we aimed to observe the ocular changes after cold compress application.…”

Section: Introductionmentioning

confidence: 99%

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Early term ocular changes after cold compress application

Bahar¹,

Pekel²

2022

ABO

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To examine changes in the eyes after cold compress application at the early stage. Method: A total of 62 eyes from 62 healthy adult participants were included in this cross-sectional and comparative study. The subfoveal choroidal thickness and retinal nerve fiber thickness were measured by spectral-domain ocular coherence tomography. The central corneal thickness, anterior segment volume and depth, iridocorneal angle, and pupil diameter were measured by means of the Scheimpflug anterior segment imaging method. The measurements were repeated after 10 min of cold compress application, which was applied using special packs. The procedures were then repeated with non-cold packages to exclude the effect of pressure. Results: The average age of the participants was 30.74 ± 5.82 years. There was no significant change in the central corneal thickness after cold compress application, and there was a significant decrease in the anterior segment volume (p<0.001), anterior segment depth (p<0.001), and pupil diameter. Moreover, the iridocorneal angle increased (p=0.002). The subfoveal choroidal thickness decreased after the application of cold compress (p<0.001). The overall disk thickness (p=0.034) and superior nasal scale (p=0.007) significantly decreased after the cold compress was administered during the evaluation of optic nerve fiber thickness. In contrast to that with the cold application, the subfoveal choroidal thickness and optic nerve fiber thickness did not change after the non-cold compress application (p>0.05). Conclusion: Cold compress application may thus cause some physiological changes in the eyes, which necessitates the examination of its usage and effects.

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Section: Discussionmentioning

confidence: 99%

Section: Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Early term ocular changes after cold compress application

Bahar¹,

Pekel²

2022

ABO

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Systemic Hypothermia in the Acute Management of Traumatic Optic Neuropathy in a Murine Animal Model

Tse,

Wang,

Dvoriantchikova

et al. 2024

Ophthalmic Plastic &Amp; Reconstructive Surgery

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Purpose: To examine the effects of systemic hypothermia on retinal ganglion cell survival and visual outcomes after optic nerve trauma in a sonication-inducted traumatic optic neuropathy murine animal model. Methods: Twenty mice underwent sonication-inducted traumatic optic neuropathy. Afterward, 10 mice were placed on a warming pad set to 36°C, and 10 mice were placed on a table. General anesthesia was maintained for 3 hours with subcutaneous injections of ketamine. The rectal temperature was measured every 15 minutes. Pattern electroretinograms were obtained at 2, 4, and 6 weeks. Mice were sacrificed at 6 weeks, and retinal ganglion cell counts were performed. Results: The hypothermia group had an average rectal temperature of 23.1°C; the control group was 33.3°C. At 6 weeks, the hypothermia group had larger a-wave amplitudes (18.19 µV) than the control group (12.75 µV) (p < 0.05). At 6 weeks, retinal ganglion cell density over the entire retina was significantly higher in the hypothermia group versus the control (p < 0.0001). Conclusions: The hypothermia treatment group had significantly higher retinal ganglion cell density and pattern electroretinogram a-wave amplitudes 6 weeks after injury than the control group. Systemic hypothermia may have a neuroprotective effect when initiated immediately after sonication-inducted traumatic optic neuropathy.

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The Assessment of Orbital Apical Temperature Change With Local Cool Compress Application

Abstract: There was only a limited decrease in apical temperature by placing a local 0°C ice/water admixture over the eyelid. This information is useful in determining whether local hypothermia may be a potential alternative for traumatic optic neuropathy.

Cited by 2 publications

References 20 publications

Early term ocular changes after cold compress application

Early term ocular changes after cold compress application

Systemic Hypothermia in the Acute Management of Traumatic Optic Neuropathy in a Murine Animal Model

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