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The association between ocular biometric components and corneal aberrations.

Hassan Hashemi¹, Shima Mesbahi², Alireza Jamali³

¹Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran.

Clinical & Experimental Optometry

|October 16, 2023

Summary

In elderly individuals, age, crystalline lens thickness, and corneal diameter influence total higher-order aberrations. These ocular biometric factors are crucial for understanding vision changes and planning eye care in older adults.

Keywords:

Axial length cornea higher order aberrations ocular biometry

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Area of Science:

Ophthalmology
Optometry
Biomedical Engineering

Background:

Corneal higher-order aberrations significantly impact retinal image quality.
Understanding these aberrations is vital for interpreting visual characteristics in the elderly population.

Purpose of the Study:

To investigate the relationship between ocular biometric components and corneal higher-order aberrations.
To identify factors influencing vision quality in individuals aged 60 and above.

Main Methods:

A subsample from the Tehran Geriatric Eye Study (TGES) was analyzed.
Ocular examinations, including aberrometry and anterior segment imaging (Pentacam AXL), were performed on 644 eyes of 415 elderly participants.

Main Results:

Total higher-order aberrations correlated with age, crystalline lens thickness, and corneal diameter.
Coma aberration was linked to female sex and lens thickness.
Spherical aberration showed relationships with sex, axial length, corneal thickness, anterior chamber depth, and lens thickness.

Conclusions:

Ocular biometric parameters are significantly associated with corneal aberrations in the elderly.
These findings necessitate consideration in medical and surgical eye care planning for older adults.