Rigid Contact Lenses: Pros and Cons

24/01/2017

Pros

• High gas permeability
• Easier to manipulate (do not turn inside out)
• Excellent tear exchange during blinking (increased oxygen supply)
• No parametric limitations (almost all optical powers are manufactured)
• Astigmatism up to 2-2.5 dioptres are compensated with "normal" designs, cheaper
• The vision obtained with them is usually better and more stable than with soft lenses
• Correction of medium/high astigmatism is usually better with rigid than with soft lenses
• Ideal for correcting irregular astigmatisms or deformed corneas
• Last longer (they age more slowly than the soft ones)
• Produce less eye dryness
• They are the ones that cause less eye problems (less dropouts)
• End up being cheaper

Cons

• Longer adaptation process
• Some models have a higher initial cost (finally they are cheaper than the soft ones)
• May produce corneal (transient) deformation
• More annoying due to the strong wind. If we wear protective goggles (sunglasses), we reduce the discomfort in these situations
• Easier for the particles to go under the lens