Relation between the axial length and lenticular progressive myopia.

Area of Science:

• Ophthalmology
• Ocular Biometry
• Myopia Research

Background:

• Lenticular progressive myopia, often associated with nuclear cataracts, presents unique challenges in understanding its etiology.
• Differentiating risk factors between lenticular progressive myopia and common senile cataracts is crucial for targeted interventions.

Purpose of the Study:

• To identify potential risk factors for lenticular progressive myopia.
• To compare ocular characteristics between patients with lenticular progressive myopia and senile cataracts.

Main Methods:

• Retrospective review of 47 eyes with lenticular progressive myopia and 32 control eyes with senile cataracts (1998-2003).
• Comparison of preoperative refraction, keratometry (K-values), and axial lengths.
• Investigation of associated ocular and systemic diseases.

Main Results:

• The lenticular progressive myopia group had a younger mean age at surgery (52.9 years) compared to the senile cataract group (68.1 years).
• Significantly longer mean axial length (25.68 mm) was observed in the lenticular progressive myopia group versus the control group (22.97 mm).
• Lower mean K-values (43.25 D) were found in the lenticular progressive myopia group compared to the senile cataract group (44.25 D).

Conclusions:

• Longer axial length is a significant characteristic differentiating patients with nuclear cataract and lenticular progressive myopia from those with senile cataracts.
• Increased axial length is a potential predisposing risk factor for lenticular progressive myopia.