Clinical outcomes with a diffractive trifocal intraocular lens
Jorge L Alió1,2, Ana B Plaza-Puche1, Jorge L Alió Del Barrio1,2
11 Vissum Ophthalmological Corporation, Alicante, Spain.
European Journal of Ophthalmology
|April 6, 2018
Summary
The AcrySof IQ Panoptix intraocular lens improves vision after cataract surgery, offering good contrast sensitivity and enhanced near vision. Patients experienced significant improvements in visual function and near activity questionnaires.
Area of Science:
- Ophthalmology
- Biomedical Engineering
Background:
- Cataract surgery aims to restore vision.
- Trifocal intraocular lenses (IOLs) offer solutions for presbyopia.
- The AcrySof IQ Panoptix IOL is designed to provide clear vision at multiple distances.
Purpose of the Study:
- To evaluate clinical and visual outcomes.
- To assess near vision quality and intraocular optical quality.
- To analyze the performance of the trifocal PanOptix IOL after bilateral implantation.
Main Methods:
- Prospective case-series study of 26 patients (52 eyes).
- Implantation of AcrySof IQ Panoptix IOL.
- Evaluation of visual acuity, defocus curve, contrast sensitivity, near activity questionnaire, and internal aberrations.
Main Results:
- Significant improvement in uncorrected and corrected distance/near visual acuities.
- Good distance-corrected near visual acuity (0.13 LogMAR at 6 months).
- Improved near activity visual questionnaire scores (p < 0.01).
Conclusions:
- The AcrySof IQ Panoptix IOL effectively restores visual function after cataract surgery.
- Acceptable intermediate and near vision with good contrast sensitivity.
- Demonstrates significant improvement in patient-reported near visual function.
Related Concept Videos
02:18Interference and Diffraction
52.6K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
52.6K
02:24Predicting Reaction Outcomes
11.0K
Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
11.0K
01:13Outcomes of Glycolysis
107.7K
Nearly all the energy used by cells comes from the bonds that make up complex organic compounds. These organic compounds are broken down into simpler molecules, such as glucose. As a result, cells extract energy from glucose over many chemical reactions—a process called cellular respiration.
Cellular respiration can occur aerobically (with oxygen) or anaerobically (without oxygen). In the presence of oxygen, cellular respiration starts with glycolysis and continues with pyruvate...
Cellular respiration can occur aerobically (with oxygen) or anaerobically (without oxygen). In the presence of oxygen, cellular respiration starts with glycolysis and continues with pyruvate...
107.7K
01:10X-ray Diffraction of Biological Samples
4.9K
X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
4.9K
01:11Guidelines for Writing Outcome
4.0K
When developing expected outcomes for a patient care plan, the nurse should adhere to the following recommendations:
Patient outcomes reflect the patient's response to the goal rather than what the nurse aims to achieve. Terminology should be observable and measurable to avoid the reader's interpretation. The desired outcome should be realistic and achievable in the designated care timeframe. Expected outcomes should align with adjunctive therapies. The outcome should enhance care...
Patient outcomes reflect the patient's response to the goal rather than what the nurse aims to achieve. Terminology should be observable and measurable to avoid the reader's interpretation. The desired outcome should be realistic and achievable in the designated care timeframe. Expected outcomes should align with adjunctive therapies. The outcome should enhance care...
4.0K
01:27Nursing Clinical Information System
1.3K
Nursing Clinical Information System (NCIS)
A Nursing Clinical Information System (NCIS) is a specialized type of healthcare information system tailored to meet the unique needs of nursing practice. It incorporates the principles of nursing informatics to streamline information management and improve the quality of care delivery.
Critical attributes of NCIS include:
A Nursing Clinical Information System (NCIS) is a specialized type of healthcare information system tailored to meet the unique needs of nursing practice. It incorporates the principles of nursing informatics to streamline information management and improve the quality of care delivery.
Critical attributes of NCIS include:
1.3K