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Essential4Health

Get Healthy ~ Stay Healthy

Essential4Health

Get Healthy ~ Stay Healthy

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Interferometry

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I

Description

"Gonioscopy" procedure allows doctors to examine the drainage angle between your iris and cornea to evaluate glaucoma risk. Using a special contact lens and microscope, your doctor checks for signs of blockage, narrow angles, or structural abnormalities. This procedure is essential for confirming angle-closure glaucoma or monitoring how well treatments are working. Results guide care plans that may include medications, laser treatments, or surgery. Regular gonioscopy helps manage pressure-related eye issues and protect long-term vision.

"Gonioscopy" procedure allows doctors to examine the drainage angle between your iris and cornea to evaluate glaucoma risk. Using a special contact lens and microscope, your doctor checks for signs of blockage, narrow angles, or structural abnormalities. This procedure is essential for confirming angle-closure glaucoma or monitoring how well treatments are working. Results guide care plans that may include medications, laser treatments, or surgery. Regular gonioscopy helps manage pressure-related eye issues and protect long-term vision.

Category

Eye Function

Procedure

Non-Invasive

Sample Type

No biological sample is needed for this test.

Units

Not Applicable

Procedure Category

Measure

Test Group

Ophthalmological System Group

Test Group Description

Ophthalmological System Group: Tests within this group focus on evaluating the health and function of the eyes and visual system. These assessments provide insights into visual acuity, eye anatomy, and ocular health.

Optimal Range

For All Individuals:

  • Result: Negative: No abnormalities detected.

Normal Range

For All Individuals:

  • Result: Negative: No abnormalities detected.

Results That Differ From The Norm (Direct and Indirect Causes)

Abnormal results may indicate:


  • Allergic conjunctivitis (Allergic inflammation of the conjunctiva)

  • Blepharitis (Inflammation of the eyelid margins)

  • Conjunctivitis (Inflammation of the conjunctiva)

  • Corneal dystrophies (Corneal degenerative disorders)

  • Corneal ulcers (Open sores on the cornea)

  • Dry eye syndrome (Insufficient tear production ...

Key Reasons For Testing

  • Corneal Topography: Provides corneal curvature maps for astigmatism and keratoconus diagnosis.

  • Tear Film Analysis: Evaluates stability and thickness for dry eye syndrome diagnosis and treatment monitoring.

  • IOL Power Calculation: Determines intraocular lens power for cataract surgery using precise ocular measurements.

  • Anterior Segment Imaging: Offers high-resolution imaging for diagnosing corneal diseases a...

Health Status Conditions It May Be Used To Assess

Currently, this test is not directly associated with any conditions listed on the Health Status page. However, it may be included as part of a broader set of tests linked to specific health conditions.

Some Prominent Medical Labs That May Offer This Test

Please note that this particular test has not been associated with any of the listed prominent medical labs. We recommend enquiring with your private physician or nearest hospital to determine where this specific test can be performed.

References

Important Note

Any medical procedure yielding results outside the norm may be directly or indirectly linked to the conditions outlined on this page. Various factors, including genetics, medication and supplement usage, recent illnesses, pregnancy, pre-test eating, smoking, and stress, can impact the test's outcome. Additionally, factors like false positives, false negatives, inaccurate analyses, and others can influence results.


Reference ranges, which help healthcare professionals interpret medical tests, may vary depending on age, gender, and other factors. They may also differ between laboratories due to variations in instruments and methods used. Optimal ranges are designed for preventive purposes, aiming to identify trends and potential risks early, while normal ranges reflect conventional laboratory values indicating no current disease or pathology. Your healthcare practitioner may have specific reasons for testing that deviate from the usual or may interpret results differently based on individual circumstances. Proper interpretation typically involves considering clinical findings and other diagnostic tests. Hence, it is crucial to provide your healthcare professionals with a comprehensive medical history, consult with them for result interpretation, and follow their guidance for potential re-testing or additional diagnostics.

Disclaimer

This content is provided solely for informative and educational purposes. It is not intended as a substitute for medical advice or treatment from a personal physician. Regarding the interpretation of their medical test results and/or specific health questions, it is recommended that all readers and viewers consult their physicians or other qualified health professionals. The publisher is not responsible for any adverse health effects that may result from reading or following the information in this educational content. Before beginning any nutrition, supplement, or lifestyle program, all viewers, especially those taking prescription or over-the-counter medications, should consult their physician or health care practitioner.


Please note that while prominent lab names are included in this content, we cannot guarantee that these labs offer all the tests mentioned. For confirmation, individuals should contact the labs directly or consult their medical practitioners. The information provided reflects general knowledge at the time of publication and may not include recent updates or emerging research. Readers should verify details with qualified professionals to ensure the most up-to-date and accurate guidance.

[1] Gao B, Huang L, Zhuang J, et al. Phase-shifting interferometry for highly accurate surface measurements. Opt Lett.2020;45(7):1822-1825.
[2] Welford WT. Interferometry in optical testing. Rep Prog Phys. 1978;41(6):511-564.
[3] Hariharan P. Basics of interferometry. 2nd ed. Amsterdam: Academic Press; 2007.
[4] Schmit J, Reynolds GT. Phase-shifting interferometry. Appl Opt. 1986;25(24):4929-4932.
[5] Olszak A, Mazurek P, Baczynska K. Application of interferometry in the diagnostics of thin film structures. Opt Lasers Eng. 2017;96:24-30.
[6] Wyant JC. White light interferometry. Proc SPIE. 1992;1752:27-37.
[7] Chhaniwal VK, Dubey A, Jain RK. Holographic interferometry for measurement of minute changes in physical parameters. Meas Sci Technol. 2007;18(9):2764-2768.
[8] Robinson DA, Bonora S, Schlief A, et al. Use of phase shifting and wavelength tuning for enhanced resolution in interferometry. Appl Opt. 2018;57(5).
[9] Malacara D, ed. Optical Shop Testing. 3rd ed. Hoboken, NJ: Wiley; 2007.
[10] Schwider J. Advanced methods in interferometry. Opt Eng. 1990;29(10):1196-1202.
[11] Kujawinska M. Interferometry techniques in modern metrology. Meas Sci Technol. 1993;4(6):653-663.
[12] Servin M, Quiroga JA, Padilla JM. Fringe pattern analysis for optical metrology: Theory and applications. J Mod Opt. 2014;61(4):314-331.
[13] Dändliker R, Thalmann R, Prongué D. Applications of holographic and speckle interferometry. J Phys E Sci Instrum.1980;13(8):848-861.
[14] Delpy DT, Cope M, van der Zee P, et al. Estimation of optical pathlength through tissue from direct time of flight measurement. Phys Med Biol. 1988;33(12):1433-1442.

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