Application and Clinical Evaluation of Longitudinal Chromatic Aberration Technique in Ophthalmology

Application and Clinical Evaluation of Longitudinal Chromatic Aberration Technique in Ophthalmology

Our study aims to delve into the effects of shifting the focal point of blue light from video or text displayed on a terminal screen forward on the axial length of the eye, ocular blood flow, visual fatigue, and visual function, that is, its relationship with Video Display Terminal (VDT) syndrome and myopia. By examining the decoding ability of the adult subjects' retina to the clarity of the signal, we will attempt to develop a novel, non-invasive strategy to curb the elongation of the eyeball associated with myopia. Concurrently, we will also focus on the pathophysiological mechanisms underlying VDT syndrome and explore its potential link to the progression of myopia, providing new scientific evidence for the prevention and treatment of this ocular condition. This research is expected to provide robust support for addressing the global issue of myopia and the health challenges posed by VDT syndrome. Ultimately, by integrating global eye health issues with the challenges brought about by VDT syndrome, we will propose intervention and prevention strategies, offering new insights for the advancement of ophthalmology and public health sectors, thereby promoting visual acuity and ocular health for the population.

Inclusion Criteria:

1. Adult population, regardless of gender
2. Refractive error is less than or equal to -2.5D and both eyes achieve corrected visual acuity of 0.8 or higher.
3. Normal intraocular pressure with no organic pathology.
4. No apparent symptoms of dry eye.
5. Willing to cooperate to complete all the tests.
6. Voluntarily signing the informed consent form.

Exclusion Criteria:

1. Individuals with strabismus and amblyopia exist.
2. Suffering from congenital eye conditions such as congenital cataracts or congenital retinal diseases.
3. Those who have undergone intraocular surgery (such as cataract removal, intraocular lens implantation, etc.).
4. Individuals with refractive media opacity (such as corneal lesions, lens opacity, etc.).
5. Abnormal intraocular pressure (IOP) (IOP < 10 mmHg or IOP > 21 mmHg, or a bilateral IOP difference of ≥5 mmHg).
6. Only one eye meets the inclusion criteria.
7. Active corneal infections such as bacterial, fungal, viral, or other acute or chronic anterior segment inflammations.
8. Currently using medications that may lead to dry eye or affect vision and corneal curvature.
9. Other ocular conditions, such as dacryocystitis, eyelid disorders and abnormalities, abnormal intraocular pressure, and glaucoma.
10. Unable to undergo regular eye examinations.