NACOR STUDY PREP (CONTACT LENS).FINAL TEST 2026\2027.
Corneal Abrasion
These are superficial scratches on the cornea, often caused by improper handling or
fitting of contact lenses. Symptoms include pain, redness, tearing, and sensitivity to
light.
Treatment typically involves removing the contact lens and using lubricating eye
drops.
Corneal Ulcers
These are open sores on the cornea that can be caused by bacterial, fungal, or viral
infections. Contact lens wear can increase the risk of developing corneal ulcers,
particularly if lenses are worn for extended periods or proper hygiene is not
maintained.
Treatment usually involves, patient education of proper hygiene practices. Can
include, prescription antibiotics or antifungal medication, and in severe cases, a
corneal transplant may be required.
Giant Papillary Conjunctivitis (GPC)
Tiny swellings on the inside surface of the eyelids (upper tarsal plate). Caused by
allergic reaction to contact lens materials,
deposits on the lenses or solution or symptom of chronic eye allergies.
Treatment includes, removing contact lenses until condition is resolved, reduce lens
wear time, change lens material, change replacement schedule and educate about
hygiene practices.
Conjunctival Redness
Appears as redness on the conjunctiva, will be itchy, irritated, patient may have fever
like symptoms.
Treatment would include discontinue wearing lenses until resolved (1-2 days).
Dry Eye Syndrome
Contact lens wear can contribute to dry eye symptoms, including itching, burning,
redness, and discomfort. Prolonged lens wear may disrupt the tear film and cause
reduced tear production.
,NACOR STUDY PREP (CONTACT LENS).FINAL TEST 2026\2027.
Recommend use of lubricating eye drops and taking regular breaks from lens wear.
Contact Lens-Induced Peripheral Ulcer (CLPU)
CLPU is an inflammatory condition characterized by a localized corneal ulcer near the
lens edge. It can occur due to mechanical irritation or an adverse reaction to the lens
material. Treatment involves discontinuing lens wear, using antibiotic or anti-
inflammatory eye drops, and ensuring proper lens hygiene.
Corneal Neovascularization
This refers to the growth of new blood vessels into the cornea, which can be caused
by chronic hypoxia (lack of oxygen) associated with prolonged contact lens
wear. Proper lens fitting, limiting wearing time, and ensuring adequate oxygen
permeability of the lenses can help prevent corneal neovascularization.
Contact Lens Acute Red Eye (CLARE)
A condition characterized by sudden-onset redness, pain, and discomfort in the eye
shortly after lens insertion. It is typically caused by bacterial toxins adhering to the
lens surface, leading to an inflammatory reaction. Treatment involves discontinuing
lens wear, using antibiotic eye drops, and practicing good lens hygiene.
Contact Lens-Related Keratitis (CLRK)
Inflammation of the cornea caused by microbial infections, such as bacteria, fungi, or
amoebae. It can result from inadequate lens cleaning, overnight lens wear, or
swimming while wearing lenses. Treatment may include prescription medications like
antibiotic, antifungal, or antiamoebic eye drops.
Corneal Edema
Swelling of the cornea due to inadequate oxygen supply or poor lens fitting. It can
cause blurry vision, halos around lights, and eye discomfort. Management involves
improving oxygen permeability, adjusting lens parameters, and using hypertonic
saline drops to reduce corneal edema.
Lens Deposits
Accumulation of protein, lipid, or calcium deposits on the surface of contact lenses.
Deposits can cause discomfort, reduced visual acuity, and increase the risk of
infections. Treatment involves proper lens cleaning, using enzymatic cleaners, and
considering daily disposable lenses.
, NACOR STUDY PREP (CONTACT LENS).FINAL TEST 2026\2027.
Lens-Induced Peripheral Corneal Infiltrates (LIPCOF)
Small white infiltrates around the cornea periphery caused by an immune response
to microbial antigens on the contact lens surface. It can occur due to poor hygiene,
lens solution sensitivity, or prolonged lens wear. Treatment includes lens
discontinuation, antibiotic or anti-inflammatory eye drops, and lens hygiene
improvement.
Solution-Induced Corneal Staining (SICS)
The appearance of corneal staining due to sensitivity or toxicity from contact lens
solutions. Staining may present as irregular patches on the cornea and can be
associated with discomfort and dryness. Treatment involves switching to a different
solution or using preservative-free products.
Allergic Conjunctivitis
Allergic inflammation of the conjunctiva caused by an allergic reaction to allergens
such as pollen, dust mites, or animal dander. Symptoms include itching, redness,
watery discharge, and discomfort. Contact lens wear can exacerbate symptoms, and
management may involve antihistamine eye drops, avoidance of allergens, and
temporary discontinuation of lens wear.
Conjunctivitis (Bacterial or Viral)
Description: Inflammation of the conjunctiva caused by bacterial or viral infections. It
can lead to redness, discharge, itching, and discomfort. Contact lens wear can
worsen the condition and increase the risk of spreading the infection. Treatment
involves discontinuing lens wear, using prescribed eye drops (e.g., antibiotics for
bacterial conjunctivitis), and practicing good hygiene.
Meibomian Gland Dysfunction (MGD)
Dysfunction of the meibomian glands, which produce the oily component of tears,
leading to evaporative dry eye. MGD can cause discomfort, dryness, and blurry vision,
making contact lens wear challenging. Management includes warm compresses, lid
hygiene, and artificial tears. Addressing MGD before lens wear can improve comfort.
Cataract
Cataract is characterized by the clouding of the natural lens in the eye, leading to
progressively blurred or hazy vision. Cataracts can interfere with contact lens wear
Corneal Abrasion
These are superficial scratches on the cornea, often caused by improper handling or
fitting of contact lenses. Symptoms include pain, redness, tearing, and sensitivity to
light.
Treatment typically involves removing the contact lens and using lubricating eye
drops.
Corneal Ulcers
These are open sores on the cornea that can be caused by bacterial, fungal, or viral
infections. Contact lens wear can increase the risk of developing corneal ulcers,
particularly if lenses are worn for extended periods or proper hygiene is not
maintained.
Treatment usually involves, patient education of proper hygiene practices. Can
include, prescription antibiotics or antifungal medication, and in severe cases, a
corneal transplant may be required.
Giant Papillary Conjunctivitis (GPC)
Tiny swellings on the inside surface of the eyelids (upper tarsal plate). Caused by
allergic reaction to contact lens materials,
deposits on the lenses or solution or symptom of chronic eye allergies.
Treatment includes, removing contact lenses until condition is resolved, reduce lens
wear time, change lens material, change replacement schedule and educate about
hygiene practices.
Conjunctival Redness
Appears as redness on the conjunctiva, will be itchy, irritated, patient may have fever
like symptoms.
Treatment would include discontinue wearing lenses until resolved (1-2 days).
Dry Eye Syndrome
Contact lens wear can contribute to dry eye symptoms, including itching, burning,
redness, and discomfort. Prolonged lens wear may disrupt the tear film and cause
reduced tear production.
,NACOR STUDY PREP (CONTACT LENS).FINAL TEST 2026\2027.
Recommend use of lubricating eye drops and taking regular breaks from lens wear.
Contact Lens-Induced Peripheral Ulcer (CLPU)
CLPU is an inflammatory condition characterized by a localized corneal ulcer near the
lens edge. It can occur due to mechanical irritation or an adverse reaction to the lens
material. Treatment involves discontinuing lens wear, using antibiotic or anti-
inflammatory eye drops, and ensuring proper lens hygiene.
Corneal Neovascularization
This refers to the growth of new blood vessels into the cornea, which can be caused
by chronic hypoxia (lack of oxygen) associated with prolonged contact lens
wear. Proper lens fitting, limiting wearing time, and ensuring adequate oxygen
permeability of the lenses can help prevent corneal neovascularization.
Contact Lens Acute Red Eye (CLARE)
A condition characterized by sudden-onset redness, pain, and discomfort in the eye
shortly after lens insertion. It is typically caused by bacterial toxins adhering to the
lens surface, leading to an inflammatory reaction. Treatment involves discontinuing
lens wear, using antibiotic eye drops, and practicing good lens hygiene.
Contact Lens-Related Keratitis (CLRK)
Inflammation of the cornea caused by microbial infections, such as bacteria, fungi, or
amoebae. It can result from inadequate lens cleaning, overnight lens wear, or
swimming while wearing lenses. Treatment may include prescription medications like
antibiotic, antifungal, or antiamoebic eye drops.
Corneal Edema
Swelling of the cornea due to inadequate oxygen supply or poor lens fitting. It can
cause blurry vision, halos around lights, and eye discomfort. Management involves
improving oxygen permeability, adjusting lens parameters, and using hypertonic
saline drops to reduce corneal edema.
Lens Deposits
Accumulation of protein, lipid, or calcium deposits on the surface of contact lenses.
Deposits can cause discomfort, reduced visual acuity, and increase the risk of
infections. Treatment involves proper lens cleaning, using enzymatic cleaners, and
considering daily disposable lenses.
, NACOR STUDY PREP (CONTACT LENS).FINAL TEST 2026\2027.
Lens-Induced Peripheral Corneal Infiltrates (LIPCOF)
Small white infiltrates around the cornea periphery caused by an immune response
to microbial antigens on the contact lens surface. It can occur due to poor hygiene,
lens solution sensitivity, or prolonged lens wear. Treatment includes lens
discontinuation, antibiotic or anti-inflammatory eye drops, and lens hygiene
improvement.
Solution-Induced Corneal Staining (SICS)
The appearance of corneal staining due to sensitivity or toxicity from contact lens
solutions. Staining may present as irregular patches on the cornea and can be
associated with discomfort and dryness. Treatment involves switching to a different
solution or using preservative-free products.
Allergic Conjunctivitis
Allergic inflammation of the conjunctiva caused by an allergic reaction to allergens
such as pollen, dust mites, or animal dander. Symptoms include itching, redness,
watery discharge, and discomfort. Contact lens wear can exacerbate symptoms, and
management may involve antihistamine eye drops, avoidance of allergens, and
temporary discontinuation of lens wear.
Conjunctivitis (Bacterial or Viral)
Description: Inflammation of the conjunctiva caused by bacterial or viral infections. It
can lead to redness, discharge, itching, and discomfort. Contact lens wear can
worsen the condition and increase the risk of spreading the infection. Treatment
involves discontinuing lens wear, using prescribed eye drops (e.g., antibiotics for
bacterial conjunctivitis), and practicing good hygiene.
Meibomian Gland Dysfunction (MGD)
Dysfunction of the meibomian glands, which produce the oily component of tears,
leading to evaporative dry eye. MGD can cause discomfort, dryness, and blurry vision,
making contact lens wear challenging. Management includes warm compresses, lid
hygiene, and artificial tears. Addressing MGD before lens wear can improve comfort.
Cataract
Cataract is characterized by the clouding of the natural lens in the eye, leading to
progressively blurred or hazy vision. Cataracts can interfere with contact lens wear
