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1
A Concise Presentation
By
Mr. Deepak Sarangi
(Asst.Professor)
RIPS
Definition
 Ophthalmic preparations (eye preparations) are sterile,
liquid, semi-solid preparations that may contain one or
more active pharmaceutical ingredient( s) intended for
application to the conjunctiva, the conjunctival sac or the
eyelids.
 Unless the active ingredient itself has antimicrobial
activity, ophthalmic preparations supplied as multi dose
preparations may include a suitable antimicrobial agent.
The antimicrobial activity should remain effective
throughout the entire period of use.
2RIPS
TYPES OF OPTHALMIC PRODUCTS
1. Eye drops - Ophthalmic drops (eye drops) are sterile aqueous or
oily solutions, suspensions, or emulsions intended for instillation
into the conjunctival sac.
 Ophthalmic drops should be clear and practically free from
particles when examined under suitable conditions of visibility.
 "Water for injections" should be used in the manufacture of
aqueous ophthalmic drops.
 The preparation of aqueous ophthalmic drops requires careful
consideration of the need for isotonicity, a certain buffering
capacity, the desired pH, the addition of antimicrobial agents and
antioxidants, the use of viscosity-increasing agents, and the choice
of appropriate packaging.
 Ophthalmic drops are considered isotonic when the tonicity is
equal to that of a 0.9% solution of sodium chloride. The eye can
usually tolerate solutions equivalent to 0.5-1.8% of sodium chloride.
3RIPS
2. Eye lotion – Eye lotions are the aqueous solutions used
for washing the eyes. The eye lotions are supplied in
concentrated form and are required to be diluted with
warm water immediately before use.
3. Eye Ointments - Ophthalmic ointments are sterile,
homogeneous, semi-solid preparations intended for
application to the conjunctiva or the eyelids.
 They are usually prepared from non-aqueous bases e.g.
soft paraffin (Vaseline), liquid paraffin, and wool fat.
 They may contain suitable additives, such as
antimicrobial agents, antioxidants, and stabilizing
agents.
4RIPS
 4. Eye Suspensions - Ophthalmic suspensions contain solid
particles dispersed in a liquid vehicle; they must be
homogeneous when shaken gently and remain sufficiently
dispersed to enable the correct dose to be removed from the
container.
 A sediment may occur, but this should disperse readily when
the container is shaken, and the size of the dispersed
particles should be controlled.
 The active ingredient and any other suspended material
must be reduced to a particle size small enough to prevent
irritation and damage to the cornea.
5 . Contact lens solution - These are the sterile solutions used
to clean and disinfect contact lenses.
5RIPS
6
REQUIREMENTS
Ophthalmic preparations should possess the
following requirements:
Foreign particles
Viscosity
Tonicity
pH of preparations
Sterility
Surface activityRIPS
Foreign particles:
All the ophthalmic products should be clear and free
from foreign particles, fibres and filaments.
Ophthalmic solutions should be clarified very carefully
by passing through bacteria proof filters such as
membrane filters, sintered glass filters.
 The particle size of the eye suspension should be in an
ultrafine state of subdivision to minimize irritation.
 A separate filter should be used for different ophthalmic
products in order to avoid the contamination.
7RIPS
8
Viscosity:
In order to prolong the contact time of the drug in the eye,
various thickening agents are added in the opthalmic
preparations.
Polyvinyl alcohol (1-4%), polyethylene glycol, methyl cellulose,
carboxy methyl cellulose are some of the commonly used
thickening agents. These agents improve the viscosity of the
preparation.
An ideal thickening agent should possess the following
properties:
•it should be easy to filter.It should be easy to sterilize.
•It should be compatible with other ingredients.
•It should possess requisite refractive index and clarity level.
Thickening agents are not included in the formulation of eye
drops and eye lotions which are required to be used during or
after surgery due to some possible adverse effects on the interior
of the eye.
RIPS
Tonicity:
9
 Opthalmic products should be isotonic with lachrymal
secretions to avoid discomfort and irritation.
 It has been observed that eye can tolerate a range of
tonicity from 0.5-2% .
 There are certain isotonic vehicles which are used to
prepare opthalmic products like 1.9% boric acid, sodium
acid phosphate buffer.
RIPS
pH of the preparations:
 pH plays an important role in therapeutic activity,
solubility, stability and comfort to the patient.
 Tears have a pH of about 7.4. eye can tolerate solution
having wide range of pH provided they are not strongly
buffered, since the tear will rapidly restore the normal pH
value of the eye.
 Alkaloid salt solutions are stable at pH 2-3 but this pH is
irritant to eye.
 The alkaloids get precipitated at pH above 7 and creates a
number of formulation problems
10RIPS
Sterility:
 Opthalmic preparations must be sterile when prepared.
Pseudomonas aeroginosa is very common gram –ve bacteria
which is generally found to be present in opthalmic products.
 It may cause serious infections of cornea. It can cause
complete loss of eye sight in 24-48 hrs.
 To maintain sterility in multi dose container, containing
opthalmic products, a suitable preservative is added.
 The preservative should be non-toxic, non-irritant and
should be compatible with medicaments.
 The opthalmic products are generally sterilized by
autoclaving, filtration through bacteria proof filters and
addition of bactericides at low temperature.
11RIPS
Surface activity:
 Vehicles used in opthalmic preparations must have good
wetting ability to penetrate cornea and other tissues.
 Certain surfactants or wetting agents added which are
found suitable for opthalmic products.
 It should not cause any damage to the tissue of eye.
Benzalkonium chloride, polysorbate 20, polysorbate 80,
dioctyl sodium sulpho succinate etc., are some of the
surfactants which are commonly used.
12RIPS
Administration of Ophthalmic Products
 Ophthalmic medications include drops, ointments, and intraocular disks.
Always considered sterile, they are often prescribed following cataract
removal and to treat such eye conditions as glaucoma and infections. They
are also used to soothe irritated tissue, to dilate or constrict the pupils, and
to provide anesthesia. Because ophthalmic medications are available in a
variety of concentrations, it is important to ensure that the patient is
receiving the correct one so that the eye does not become irritated or
damaged.
 The cornea of the eye contains many sensitive nerve fibers and is easily
irritated. When instilling eye medications, do not instill the medication
directly onto the cornea.
 Place drops, ointments, and suspension in the conjunctival sac. This area
of the eye is much less sensitive and provides a more appropriate site for
instilling ophthalmic medications.
 Before instilling an ophthalmic medication, gently wipe away any drainage
or discharge along the eyelid margin.
13RIPS
Process of Instilling Ophthalmic
Products
14RIPS
Packaging of Opthalmic Products
Containers: The eye drops should be packed in neutral glass
containers or in suitable plastic containers.
In olden days the eye drops are stored in vertically fluted amber
colored glass bottles fitted with a Bakelite cap carrying a dropper.
The bottle must confirm to limit test for alkalinity of glass. Now a days
neutral glass small bottles having capacity of 4ml to 8ml are used.
It has two poly propylene screw caps, one for attaching a silicone
rubber teat to the container and the other for covering the teat.
The plastic squeeze bottles having ridged plastic cap and polythene
friction plug containing baffle that produces uniform drops are also
used these days.
These are very handy. These bottles are sterilized by gaseous
sterilization method. 15RIPS
16RIPS
Figurs showing different types of Packing.
(A) Many different container closure venders supply
these bottle and cap configurations.
(B) The container closure system design is not
engineered to secure the plastic ring around the
bottle neck. As a result, the plastic rings are likely to
slip off the bottle neck on patients’ eyes when the
bottle is inverted to administer eye drops.
(C) The sharp ridges on the rings formed when the seal
is broken between the cap and ring can cause corneal
abrasions.
17RIPS
Contact lens Solution
A sterile, isotonic solution that contains hyaluronan,
sulfobetaine, poloxamine, boric acid, sodium borate,
edetate disodium and sodium chloride and preserved
with a dual disinfection system (polyaminopropyl
biguanide 0.00013% and polyquaternium 0.0001%).
18
A contact lens is a lightweight corrective, cosmetic or therapeutic
device that is usually placed directly onto the cornea of the eye.
Contact lenses have many benefits for wearers, including appearance
and practicality.
Many people choose to wear contact lenses as opposed to eyeglasses as
they do not steam up, they provide a wider field of vision, and they are
more suitable for a number of sporting activities.
RIPS
Types of Contact lenses
19
1. Hard Contact lenses – It is made from rigid plastic
resin called polymethacrylate.
It is impermeable to oxygen and moisture.
2. Soft Contact lenses – It is made of hydrophilic
transparent plastic called hydroxy ethyl
methacrylate.
3. Rigid Gas Permeable – It is having the advantages of
both soft and hard contact lenses.
4. Rigid hydrophobic – This lens has good gas
permeability and poor wettability.
RIPS
Care of Contact Lens
 Before handling contact lenses, wash your hands with soap and water, then rinse and dry
them with a lint-free towel.
 Minimize contact with water, including removing lenses before going swimming or in a
hot tub.
 Contact lenses should not be rinsed with or stored in water (tap or sterile water).
 Do not put your lenses in your mouth to wet them. Saliva is not a sterile solution.
 Do not use saline solution and rewetting drops to disinfect lenses. Neither is an effective
or approved disinfectant.
 Wear and replace contact lenses according to the schedule prescribed by your eye care
professional.
 Follow the specific contact lens cleaning and storage guidelines from your eye care
professional and the solution manufacturer.
 During cleaning, rub your contact lenses with your fingers, then rinse the lenses with
solution before soaking them. This "rub and rinse" method is considered by some experts
to be a superior method of cleaning, even if the solution you are using is a "no-rub"
variety.
 Rinse the contact lens case with fresh solution — not water. Then leave the empty case
open to air dry.
 Keep the contact lens case clean and replace it regularly, at least every three months. Lens
cases can be a source of contamination and infection. Do not use cracked or damaged
lens cases.
20RIPS
Care of Contact lens Solution
 Do not re-use old solution or "top off" the solution in your lens
case.
 Do not transfer contact lens solution into smaller travel-size
containers. This can affect the sterility of the solution, which can
lead to an eye infection.
 Do not allow the tip of the solution bottle to come in contact
with any surface, and keep the bottle tightly closed when not in
use.
 If you store your lenses in the case for an extended period of
time, consult the instructions for the lenses or the contact lens
solution to determine if re-disinfecting the lenses is appropriate
before you wear them. In no case should you wear your lenses
after storage for 30 or more days without re-disinfecting.
21RIPS
22
THANKS for viewing the ppt
For more ppts
on pharma related topics plz contact
sarangi.dipu@gmail.com
Or find me at following link
www.facebook.com/sarangi.dipu
RIPS

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Ophthalmic Products Presentation Summary

  • 1. 1 A Concise Presentation By Mr. Deepak Sarangi (Asst.Professor) RIPS
  • 2. Definition  Ophthalmic preparations (eye preparations) are sterile, liquid, semi-solid preparations that may contain one or more active pharmaceutical ingredient( s) intended for application to the conjunctiva, the conjunctival sac or the eyelids.  Unless the active ingredient itself has antimicrobial activity, ophthalmic preparations supplied as multi dose preparations may include a suitable antimicrobial agent. The antimicrobial activity should remain effective throughout the entire period of use. 2RIPS
  • 3. TYPES OF OPTHALMIC PRODUCTS 1. Eye drops - Ophthalmic drops (eye drops) are sterile aqueous or oily solutions, suspensions, or emulsions intended for instillation into the conjunctival sac.  Ophthalmic drops should be clear and practically free from particles when examined under suitable conditions of visibility.  "Water for injections" should be used in the manufacture of aqueous ophthalmic drops.  The preparation of aqueous ophthalmic drops requires careful consideration of the need for isotonicity, a certain buffering capacity, the desired pH, the addition of antimicrobial agents and antioxidants, the use of viscosity-increasing agents, and the choice of appropriate packaging.  Ophthalmic drops are considered isotonic when the tonicity is equal to that of a 0.9% solution of sodium chloride. The eye can usually tolerate solutions equivalent to 0.5-1.8% of sodium chloride. 3RIPS
  • 4. 2. Eye lotion – Eye lotions are the aqueous solutions used for washing the eyes. The eye lotions are supplied in concentrated form and are required to be diluted with warm water immediately before use. 3. Eye Ointments - Ophthalmic ointments are sterile, homogeneous, semi-solid preparations intended for application to the conjunctiva or the eyelids.  They are usually prepared from non-aqueous bases e.g. soft paraffin (Vaseline), liquid paraffin, and wool fat.  They may contain suitable additives, such as antimicrobial agents, antioxidants, and stabilizing agents. 4RIPS
  • 5.  4. Eye Suspensions - Ophthalmic suspensions contain solid particles dispersed in a liquid vehicle; they must be homogeneous when shaken gently and remain sufficiently dispersed to enable the correct dose to be removed from the container.  A sediment may occur, but this should disperse readily when the container is shaken, and the size of the dispersed particles should be controlled.  The active ingredient and any other suspended material must be reduced to a particle size small enough to prevent irritation and damage to the cornea. 5 . Contact lens solution - These are the sterile solutions used to clean and disinfect contact lenses. 5RIPS
  • 6. 6 REQUIREMENTS Ophthalmic preparations should possess the following requirements: Foreign particles Viscosity Tonicity pH of preparations Sterility Surface activityRIPS
  • 7. Foreign particles: All the ophthalmic products should be clear and free from foreign particles, fibres and filaments. Ophthalmic solutions should be clarified very carefully by passing through bacteria proof filters such as membrane filters, sintered glass filters.  The particle size of the eye suspension should be in an ultrafine state of subdivision to minimize irritation.  A separate filter should be used for different ophthalmic products in order to avoid the contamination. 7RIPS
  • 8. 8 Viscosity: In order to prolong the contact time of the drug in the eye, various thickening agents are added in the opthalmic preparations. Polyvinyl alcohol (1-4%), polyethylene glycol, methyl cellulose, carboxy methyl cellulose are some of the commonly used thickening agents. These agents improve the viscosity of the preparation. An ideal thickening agent should possess the following properties: •it should be easy to filter.It should be easy to sterilize. •It should be compatible with other ingredients. •It should possess requisite refractive index and clarity level. Thickening agents are not included in the formulation of eye drops and eye lotions which are required to be used during or after surgery due to some possible adverse effects on the interior of the eye. RIPS
  • 9. Tonicity: 9  Opthalmic products should be isotonic with lachrymal secretions to avoid discomfort and irritation.  It has been observed that eye can tolerate a range of tonicity from 0.5-2% .  There are certain isotonic vehicles which are used to prepare opthalmic products like 1.9% boric acid, sodium acid phosphate buffer. RIPS
  • 10. pH of the preparations:  pH plays an important role in therapeutic activity, solubility, stability and comfort to the patient.  Tears have a pH of about 7.4. eye can tolerate solution having wide range of pH provided they are not strongly buffered, since the tear will rapidly restore the normal pH value of the eye.  Alkaloid salt solutions are stable at pH 2-3 but this pH is irritant to eye.  The alkaloids get precipitated at pH above 7 and creates a number of formulation problems 10RIPS
  • 11. Sterility:  Opthalmic preparations must be sterile when prepared. Pseudomonas aeroginosa is very common gram –ve bacteria which is generally found to be present in opthalmic products.  It may cause serious infections of cornea. It can cause complete loss of eye sight in 24-48 hrs.  To maintain sterility in multi dose container, containing opthalmic products, a suitable preservative is added.  The preservative should be non-toxic, non-irritant and should be compatible with medicaments.  The opthalmic products are generally sterilized by autoclaving, filtration through bacteria proof filters and addition of bactericides at low temperature. 11RIPS
  • 12. Surface activity:  Vehicles used in opthalmic preparations must have good wetting ability to penetrate cornea and other tissues.  Certain surfactants or wetting agents added which are found suitable for opthalmic products.  It should not cause any damage to the tissue of eye. Benzalkonium chloride, polysorbate 20, polysorbate 80, dioctyl sodium sulpho succinate etc., are some of the surfactants which are commonly used. 12RIPS
  • 13. Administration of Ophthalmic Products  Ophthalmic medications include drops, ointments, and intraocular disks. Always considered sterile, they are often prescribed following cataract removal and to treat such eye conditions as glaucoma and infections. They are also used to soothe irritated tissue, to dilate or constrict the pupils, and to provide anesthesia. Because ophthalmic medications are available in a variety of concentrations, it is important to ensure that the patient is receiving the correct one so that the eye does not become irritated or damaged.  The cornea of the eye contains many sensitive nerve fibers and is easily irritated. When instilling eye medications, do not instill the medication directly onto the cornea.  Place drops, ointments, and suspension in the conjunctival sac. This area of the eye is much less sensitive and provides a more appropriate site for instilling ophthalmic medications.  Before instilling an ophthalmic medication, gently wipe away any drainage or discharge along the eyelid margin. 13RIPS
  • 14. Process of Instilling Ophthalmic Products 14RIPS
  • 15. Packaging of Opthalmic Products Containers: The eye drops should be packed in neutral glass containers or in suitable plastic containers. In olden days the eye drops are stored in vertically fluted amber colored glass bottles fitted with a Bakelite cap carrying a dropper. The bottle must confirm to limit test for alkalinity of glass. Now a days neutral glass small bottles having capacity of 4ml to 8ml are used. It has two poly propylene screw caps, one for attaching a silicone rubber teat to the container and the other for covering the teat. The plastic squeeze bottles having ridged plastic cap and polythene friction plug containing baffle that produces uniform drops are also used these days. These are very handy. These bottles are sterilized by gaseous sterilization method. 15RIPS
  • 17. Figurs showing different types of Packing. (A) Many different container closure venders supply these bottle and cap configurations. (B) The container closure system design is not engineered to secure the plastic ring around the bottle neck. As a result, the plastic rings are likely to slip off the bottle neck on patients’ eyes when the bottle is inverted to administer eye drops. (C) The sharp ridges on the rings formed when the seal is broken between the cap and ring can cause corneal abrasions. 17RIPS
  • 18. Contact lens Solution A sterile, isotonic solution that contains hyaluronan, sulfobetaine, poloxamine, boric acid, sodium borate, edetate disodium and sodium chloride and preserved with a dual disinfection system (polyaminopropyl biguanide 0.00013% and polyquaternium 0.0001%). 18 A contact lens is a lightweight corrective, cosmetic or therapeutic device that is usually placed directly onto the cornea of the eye. Contact lenses have many benefits for wearers, including appearance and practicality. Many people choose to wear contact lenses as opposed to eyeglasses as they do not steam up, they provide a wider field of vision, and they are more suitable for a number of sporting activities. RIPS
  • 19. Types of Contact lenses 19 1. Hard Contact lenses – It is made from rigid plastic resin called polymethacrylate. It is impermeable to oxygen and moisture. 2. Soft Contact lenses – It is made of hydrophilic transparent plastic called hydroxy ethyl methacrylate. 3. Rigid Gas Permeable – It is having the advantages of both soft and hard contact lenses. 4. Rigid hydrophobic – This lens has good gas permeability and poor wettability. RIPS
  • 20. Care of Contact Lens  Before handling contact lenses, wash your hands with soap and water, then rinse and dry them with a lint-free towel.  Minimize contact with water, including removing lenses before going swimming or in a hot tub.  Contact lenses should not be rinsed with or stored in water (tap or sterile water).  Do not put your lenses in your mouth to wet them. Saliva is not a sterile solution.  Do not use saline solution and rewetting drops to disinfect lenses. Neither is an effective or approved disinfectant.  Wear and replace contact lenses according to the schedule prescribed by your eye care professional.  Follow the specific contact lens cleaning and storage guidelines from your eye care professional and the solution manufacturer.  During cleaning, rub your contact lenses with your fingers, then rinse the lenses with solution before soaking them. This "rub and rinse" method is considered by some experts to be a superior method of cleaning, even if the solution you are using is a "no-rub" variety.  Rinse the contact lens case with fresh solution — not water. Then leave the empty case open to air dry.  Keep the contact lens case clean and replace it regularly, at least every three months. Lens cases can be a source of contamination and infection. Do not use cracked or damaged lens cases. 20RIPS
  • 21. Care of Contact lens Solution  Do not re-use old solution or "top off" the solution in your lens case.  Do not transfer contact lens solution into smaller travel-size containers. This can affect the sterility of the solution, which can lead to an eye infection.  Do not allow the tip of the solution bottle to come in contact with any surface, and keep the bottle tightly closed when not in use.  If you store your lenses in the case for an extended period of time, consult the instructions for the lenses or the contact lens solution to determine if re-disinfecting the lenses is appropriate before you wear them. In no case should you wear your lenses after storage for 30 or more days without re-disinfecting. 21RIPS
  • 22. 22 THANKS for viewing the ppt For more ppts on pharma related topics plz contact sarangi.dipu@gmail.com Or find me at following link www.facebook.com/sarangi.dipu RIPS