Intraocular Lens Use in an Astronaut During Long Duration Spaceflight

Mader, Thomas H.; Gibson, Charles R.; Schmid, Josef; Lipsky, William; Sargsyan, Ashot E.; Garcia, Kathleen; Williams, Jeffrey N.

doi:10.3357/amhp.4986.2018

Cited by 5 publications

(2 citation statements)

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“…Furthermore, IOLs were found to be well tolerated during long-duration spaceflight as well. An astronaut with unilateral acrylic IOLs implanted after cataract phacoemulsification completed a 6-month mission with excellent subjective visual assessment and no documented change in IOL position [ 72 ].…”

Section: Intraocular Lenses In Spaceflightmentioning

confidence: 99%

Ultrasound Biomicroscopy as a Novel, Potential Modality to Evaluate Anterior Segment Ophthalmic Structures during Spaceflight: An Analysis of Current Technology

Soares,

Ong,

Osteicoechea

et al. 2024

Diagnostics

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Ocular health is currently a major concern for astronauts on current and future long-duration spaceflight missions. Spaceflight-associated neuro-ocular syndrome (SANS) is a collection of ophthalmic and neurologic findings that is one potential physiologic barrier to interplanetary spaceflight. Since its initial report in 2011, our understanding of SANS has advanced considerably, with a primary focus on posterior ocular imaging including fundus photography and optical coherence tomography. However, there may be changes to the anterior segment that have not been identified. Additional concerns to ocular health in space include corneal damage and radiation-induced cataract formation. Given these concerns, precision anterior segment imaging of the eye would be a valuable addition to future long-duration spaceflights. The purpose of this paper is to review ultrasound biomicroscopy (UBM) and its potential as a noninvasive, efficient imaging modality for spaceflight. The analysis of UBM for spaceflight is not well defined in the literature, and such technology may help to provide further insights into the overall anatomical changes in the eye in microgravity.

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Section: Intraocular Lenses In Spaceflightmentioning

confidence: 99%

Ultrasound Biomicroscopy as a Novel, Potential Modality to Evaluate Anterior Segment Ophthalmic Structures during Spaceflight: An Analysis of Current Technology

Soares,

Ong,

Osteicoechea

et al. 2024

Diagnostics

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show abstract

“…One astronaut developed a unilateral cataract unrelated to spaceflight and underwent phacoemulsification with insertion of an acrylic IOL on earth. Fifteen months later, he completed a 6-month mission without any documented change in IOL position during his space mission and excellent and stable vision during lift off 42 . While this is reassuring, conclusions drawn beyond that one astronaut are limited.…”

Section: Reviewmentioning

confidence: 99%

Ocular conditions and injuries, detection and management in spaceflight

et al. 2023

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Ocular trauma or other ocular conditions can be significantly debilitating in space. A literature review of over 100 articles and NASA evidence books, queried for eye related trauma, conditions, and exposures was conducted. Ocular trauma and conditions during NASA space missions during the Space Shuttle Program and ISS through Expedition 13 in 2006 were reviewed. There were 70 corneal abrasions, 4 dry eyes, 4 eye debris, 5 complaints of ocular irritation, 6 chemical burns, and 5 ocular infections noted. Unique exposures on spaceflight, such as foreign bodies, including celestial dust, which may infiltrate the habitat and contact the ocular surface, as well as chemical and thermal injuries due to prolonged CO2 and heat exposure were reported. Diagnostic modalities used to evaluate the above conditions in space flight include vision questionnaires, visual acuity and Amsler grid testing, fundoscopy, orbital ultrasound, and ocular coherence tomography. Several types of ocular injuries and conditions, mostly affecting the anterior segment, are reported. Further research is necessary to understand the greatest ocular risks that astronauts face and how better we can prevent, but also diagnose and treat these conditions in space.

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