Causal associations between mobile phone usage and glaucoma risk: A Mendelian randomization study

Area of Science:

• Ophthalmology
• Genetics
• Epidemiology

Background:

• Previous research suggests a potential association between mobile phone usage and glaucoma.
• Understanding modifiable risk factors for glaucoma is crucial for public health.

Purpose of the Study:

• To investigate the causal relationship between mobile phone usage and glaucoma risk using a robust genetic approach.
• To identify mobile phone use as a potential modifiable risk factor for glaucoma.

Main Methods:

• Employed a two-sample Mendelian randomization (MR) analysis.
• Utilized single nucleotide polymorphisms (SNPs) from genome-wide association study (GWAS) datasets as instrumental variables (IVs).
• Applied inverse variance weighted (IVW), MR-Egger, and weighted median methods, with sensitivity analyses including Cochran's Q test and MR-Egger regression.

Main Results:

• Mendelian randomization analysis indicated a causal effect of mobile phone usage on increased glaucoma risk (ORIVW = 1.358, P = 0.019).
• Complementary methods (weighted median) also supported a significant association (OR = 1.387, P = 0.042).
• Sensitivity analyses confirmed the robustness of the findings.

Conclusions:

• Mobile phone usage is identified as a potentially modifiable risk factor for glaucoma.
• The findings warrant further investigation into the specific biological mechanisms linking mobile phone use to glaucoma.
• This research provides a basis for public health recommendations regarding mobile phone habits and eye health.