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Understanding Specialty Contact Lenses: the cosmetic, the scleral, lenses for keratoconus and more.

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Bandage Contact Lens 
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1. What exactly are Speciality Contact Lenses? 

Speciality contact Lenses are the contact lenses that are used to treat complex spectacle number, corneal diseases like keratoconus, colour vision defects and some cases of opaque corneas.

2. What are the various types of specialty contact lenses? 

Speciality Contact Lenses Includes, 

• Rigid Gas Permeable Lenses (RGP Lenses) 

• Pediatric Aphakic and Bandage Contact Lenses 

• Corneo- Scleral or Scleral Lenses 

• X Chrome Lenses 

• Prosthetic Contact Lenses

3. May I understand them in a little more detail?

• Rigid Gas Permeable Lenses (RGP Lenses) Rigid Gas Permeable (RGP) lenses are used to treat complex refractive errors such as high cylindrical refractive errors. Since these refractive errors can not be corrected by soft contact lenses. 

• Pediatric Aphakic and Bandage Contact Lenses Pediatric aphakic contact lenses are used to manage high hyperopic refractive error arising due to cataract surgery in new born babies and bandage contact lenses are used for therapeutic purpose for example in post corneal transplant 

• Corneo-Scleral or Scleral Contact Lenses These lenses are used to treat corneal disease such as keratoconus , corneal ectasia, very severe dry eye arising due to steven johnson syndrome or graft versus host disease etc. These lenses reduce higher order aberrations and thus improve vision. 

• X Chrome Contact Lenses Theses lenses used to improve individual ability to distinguish between colours and help in managing colour vision defects. 

• Prosthetic Contact Lenses Prosthetic lenses are used in corneal opacity or certain syndromes such as Waardenberg syndrome to improve cosmesis of the patients.

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