Monovision vs. aspheric bifocal contact lenses: a crossover study

Area of Science:

• Ophthalmology
• Optometry
• Vision Science

Background:

• Presbyopia, an age-related condition, causes difficulty with near vision.
• Monovision and bifocal contact lenses are common correction methods.
• Patient preference and visual outcomes vary between correction types.

Purpose of the Study:

• To compare patient preference between monovision and bifocal contact lens correction.
• To evaluate the effectiveness of Hydrocurve bifocal contact lenses versus monovision for presbyopia.

Main Methods:

• A crossover study design was employed.
• Twenty presbyopic patients were fitted with both correction types.
• Patient preference was recorded after using each correction method.

Main Results:

• Eighty percent of patients preferred bifocal contact lens correction.
• Twenty percent of patients preferred monovision correction.
• A significant majority favored bifocal lenses.

Conclusions:

• Bifocal contact lenses are a preferred correction method for presbyopia.
• Consider bifocal contact lenses before monovision for presbyopic patients.
• Hydrocurve bifocal lenses demonstrate high patient satisfaction.