The Changes Under Different Accommodation of Anterior Eye and 3D Crystal Reconstruction.
To Study the Changes Under Different Accommodation of Anterior Eye in People of Different Ages and 3D Crystal Reconstruction.
Second Affiliated Hospital, School of Medicine, Zhejiang University
120 participants
Nov 27, 2024
OBSERVATIONAL
Conditions
Summary
Accommodation is defined as a dynamic change in the overall refractive power of the eye during near fixation. Despite extensive investigations, the exact nature of human accommodation remains controversial. And recent alternative theories question the original concept of accommodation.Different experts have put forward different hypotheses. The age-related changes that underlie presbyopia are also not fully understood.Because of these unanswered questions, the topic of regulation and presbyopia remains a focus of research.
Eligibility
Inclusion Criteria1
- · Patients with astigmatism ≤-1.50D and best corrected visual acuity ≥4.9
Exclusion Criteria6
- Patients with other systemic diseases
- Patients with a history of eye surgery
- Patients with intraocular lens or aphakia
- Patients with strabismus and amblyopia
- Pregnant or lactating women
- People with mental disorders or neurological diseases who cannot cooperate with the examination
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Locations(2)
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NCT06704503