Test of QLS Device to Detect Early Cataracts

You may be eligible if

• Patients 18 years or older will be admitted to this study. There will be no gender or sex bias in the recruitment.
• Three subjects who are normal volunteers below age 40 and three subjects who are normal volunteers above age 40 will be recruited. These normal volunteers should have clear lenses with LOCS II clinical score for nuclear opalescence of 0.5 or less.
• In addition, 3 subjects who have early nuclear cataract (LOCS II/Nuclear opalescence -2) will also be recruited for the study.
• QLS data will be obtained on each eye of the normal and cataractous subjects in the nuclear region.
• No patients who have uveitis, glaucoma and who are thought to be at risk for an adverse reaction to pupil dilation, or have a history of allergic reaction to one of the dilating agents that will be used.