ESCRS - FP29.07 - Light Discomfort Thresholds In Patients With Senile Cataract Versus Pseudophakic Subjects

Light Discomfort Thresholds In Patients With Senile Cataract Versus Pseudophakic Subjects

Published 2025 - 43rd Congress of the ESCRS

Reference: FP29.07 | Type: Free paper | DOI: 10.82333/0pr6-gc06

Authors: David Lubeck 1 , Shamil Patel* 2 , Keith Barton 3 , Nathan Kerr 4 , Nir Shoham-Hazon 5

1Arbor Centers for EyeCare,Homewood, IL,United States, 2Eye Physicians and Surgeons of Arizona,Scottsdale, AZ,United States, 3Moorfields Eye Hospital,London,United Kingdom, 4Centre for Eye Research Australia,East Melbourne,Australia, 5Miramichi EyeNB Centre of Excellence,New Brunswick,Canada

Purpose

To compare light discomfort thresholds in patients with senile cataract versus pseudophakic subjects.

Setting

Eye Clinic, University Hospital.

Methods

Light discomfort thresholds were measured in patients with cataract and in matched pseudophakic subjects using the Lumiz 100 device (Essilor International, Paris, France) under different lighting conditions: continuous warm, continuous cold, flashing warm. For continuous increase, light starts at 25 lux for 5 sec and increases every sec by 20%; for discontinuous increases, light starts at 10 lux for 5 sec followed by increases to 25 lux for half a sec and then decreases back to 10 lux for 2 sec, before a 44% increase from the previous flash using warm light. Age, gender, pupil diameter, self-reported light sensitivity, iris color, eyeglass use, visual acuity, lens status and cataract grade were correlated with light discomfort thresholds.

 

Results

A total of 48 participants (28 men, 20 women; mean age 72.92±9.05 years) were included. Patients with senile cataract exhibited statistically significant lower discomfort thresholds for all measurements compared to pseudophakic subjects (respectively, 3.39±0.66 log10[lux] vs 3.81±0.46 [p=0.014] for continuous warm; 3.44±0.64 vs 3.82±0.42 [p=0.025] for continuous cold; 3.14±0.59 vs 3.81±0.31 [p<0.001] for flashing warm). Apart for lens status, no other variables influenced light discomfort thresholds.

Conclusions

The Lumiz 100 enabled the objective evaluation of light discomfort thresholds in patients with different lens status, highlighting a higher light sensitivity in patients with senile cataract compared to pseudophakic subjects.