Applanation Tonometry
AT
Description
"Amsler Grid" tool helps detect early signs of macular disease by checking your central vision for wavy lines, dark patches, or blank spots. You cover one eye, focus on a central dot, and watch for distortion in the surrounding lines. It’s especially useful for people monitoring macular degeneration or similar conditions. This simple, at-home screening allows early detection and intervention. Timely results help doctors suggest follow-up imaging, treatment options, or protective vision strategies tailored to your specific condition.
Test Category
Eye Function
Procedure
Non-Invasive
Sample Type
No biological sample is needed for this test.
Units
Millimetres Of Mercury
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:
Conventional Unit: 10.00–21.00 mmHg
SI Unit: Not Frequently Used
Normal Range
For All Individuals:
Conventional Unit: 10.00–21.00 mmHg
SI Unit: Not Frequently Used
Results That Differ From The Norm (Direct and Indirect Causes)
Abnormal results may indicate:
Contact lens wear
Corneal abnormalities (thin corneas or corneal scarring)
Corneal degeneration (degeneration of the cornea)
Corneal edema (swelling of the cornea)
Dry eye syndrome (insufficient tear production or poor tear quality)
Eye trauma or injury
Glaucoma (elevated intraocular pressure)
Keratoconus (progressive corneal thinning and bulging)
Ocular hypertension (elevated intraocular pressure without optic nerve damage)
Recent eye surgery
Scleral rigidity (stiffening of the sclera)
Key Reasons For Testing
Intraocular Pressure Measurement: Accurately measures eye pressure, essential for glaucoma diagnosis and management.
Glaucoma Screening and Diagnosis: Identifies high eye pressure, a major risk factor for optic nerve damage.
Monitoring Glaucoma Progression: Tracks changes in eye pressure to assess treatment effectiveness.
Preoperative Assessment: Evaluates eye pressure before surgeries like cataract procedures.
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.
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