This document discusses different types of tinted contact lenses, including prosthetic, cosmetic, and visibility tints. Prosthetic tints are used to improve the appearance of a disfigured eye or help correct vision in a poorly functioning eye. Cosmetic tints are used to enhance or change eye color and come in transparent or opaque varieties. Visibility tints have a light blue or green tint to help with lens handling but do not affect eye color. Considerations for fitting and using tinted contact lenses include measuring iris diameter and determining tint requirements. Potential risks are similar to standard soft lenses and include toxic effects and corneal edema.

1. CONTACTLENSES

2. Coloured SCL are also used in
practice.
The tints used in practice are three
types:
 Prosthetic Tints
 Cosmetic Tints
 Visibility Tints

3.  SCL are usually white and transparent.
 certain tints like the light blue or green
transparent tints are added to improve the
visibility of the lens to the patient during
lens handling procedures.
 These do not affect the eye colour when
worn.

4.  They are used to enhance or change the eye
colour.
 They available in plain and powers.
 They are of two types
 Transparent
 Opaque
The tinted zone of the soft lens covers the iris
colour and changes or enhances it.

5.  These lenses transmit 70 % of the light.
 They are available in various shades.
 The tints is in the form of a concentric ring
which has clear center pupil.

6.  They absorb or reflect all incoming light
,therefore used to completely change or
mask the underlying eye colour .
 They have an iris pattern with a clear
central pupil.
 The clear pupil is typically 5mm in diameter.

7. A prosthetic contact lens is a tinted or
painted contact lens used to improve the
appearance of a disfigured eye or to help
correct the vision of a poorly functioning
eye.

8.  CORNEAL OPACITY AND SCARS

9.  ANIRIDIAS
 IRREGULAR PUPIL
 IRIS COLOBOMA
 ALBINISM
 OCCLUSION THERAPY IN AMBLYOPIA

13.  SCLERAL LENSES
 PMMA or RGP LENSES
 SOFT LENSES

14. ADVANTAGES
 When a corneal lens will not centre on the cornea,
 When one wishes to improve the appearance of the
sclera
 Stable, durable & easy to maintain
DISADVANTAGES
Require greater level of expertise to fit
Expensive

15. INDICATIONS
Disfigured corneas with irregular
astigmatism
Disfigured eyes with moderate to severe
neovascularization
CONTRAINDICATION
Should not be used to mask anomalies that
affect peripheral parts of cornea or large
portions of the eye.

16. INDICATIONS
When a significant proportion of the
anterior eye is disfigured
When the patient is a previous soft
contact lens wearer
When the patient only wants to wear the
lens occasionally

17. Eyes with moderate to advanced
neovascularization
Moderate to extreme dry eye
Irregular astigmatism
People with motor coordination problem

18. TYPE A

22.  MEASURE THE IRIS DIAMETER OF THE FELLOW EYE
AND ORDER IT THE SAME
 NOTE THE IRIS COLOUR AND WHAT TYPE OF TINT IS
REQUIRED
 MEASURE THE DIAMETER OF PUPIL OF THE FELLOW
EYE
 SPECIFY WHETHER A BLACK CLEAR OR TINTED PUPIL
IS REQUIRED
 WHEN REORDERING TINTED LENSES KEEP THE LENS
MATERIAL THE SAME

23. Toxic effects
Corneal oedema
Other problems _almost the same as
faced with standard soft lenses

24. Same as other lenses
Soft solutions can be used