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Assessment of intraocular pressure in children by digital tension
Insights
Digital tension offers a reliable method for measuring intraocular pressure in young children. This technique accurately classifies pressure in 98% of cases, aiding pediatric eye care.
Area of Science:
- Ophthalmology
- Pediatric Medicine
- Biomedical Measurement
Background:
- Accurate intraocular pressure (IOP) measurement is crucial for diagnosing and managing pediatric eye conditions.
- Traditional tonometry methods can be challenging in young children due to cooperation and physical limitations.
- Digital palpation of the eye warrants investigation as a potential alternative IOP assessment in pediatric populations.
Purpose of the Study:
- To evaluate the reliability and accuracy of digital tension for measuring intraocular pressure in young children.
- To compare digital tension IOP measurements with standard non-contact tonometer readings in a pediatric cohort.
Main Methods:
- Sixty-two children (mean age 3.8 years) participated in the study.
- Examiners assessed digital tension, categorizing it as soft, medium, or hard.
- A masked examiner concurrently measured IOP using a non-contact tonometer.
Main Results:
- Digital tension correctly classified IOP in 98% of measurements when compared to non-contact tonometry.
- A significant positive correlation was found between digital tension and non-contact tonometer readings (r=0.38 for O.D., r=0.39 for O.S., p<0.05).
Conclusions:
- Digital tension shows promise as a reliable method for estimating intraocular pressure in young children.
- The study suggests digital palpation can be a valuable adjunct in pediatric IOP assessment.
- Digital tension measurements may tend to underestimate IOP compared to non-contact tonometry.
Background:
Measurement of intraocular pressure by digital tension is a procedure that warrants study to determine if it could reliably yield pressure measurements for young children.
Methods:
Sixty-two children (mean age, 3.8 years) served as subjects for the study. The examiner determined each child's digital tension in mmHg, classifying the measurement as soft to touch, medium to touch, or hard to touch. A masked examiner measured the intraocular pressure with a non-contact tonometer.
Results:
Ninety-eight percent of the digital tension measurements yielded correct classification of the pressure when compared with non-contact tonometry results. The correlation for the digital tension determination of intraocular pressure with non-contact tonometry measurements was significant: 0.38 (p < 0.05) for O.D. and 0.39 (p < 0.05) for O.S.
Conclusions:
This study suggests use of digital tension as a reliable means of obtaining the intraocular pressure of young children. Digital tension tends to under-estimate the intraocular pressure when compared to non-contact tonometry readings.