Find information on thousands of medical conditions and prescription drugs.

Tetracaine

A topical eye anesthetic is a topical anesthetic that is used to numb the surface of the eye. Examples of topical eye anesthetics are oxybuprocaine, tetracaine, alcaine, proxymetacaine and proparacaine. more...

Home
Diseases
Medicines
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
Oxytetracycline
Phentermine
Tacrine
Tacrolimus
Tagamet
Talbutal
Talohexal
Talwin
Tambocor
Tamiflu
Tamoxifen
Tamsulosin
Tao
Tarka
Taurine
Taxol
Taxotere
Tazarotene
Tazobactam
Tazorac
Tegretol
Teicoplanin
Telmisartan
Temazepam
Temocillin
Temodar
Temodar
Temozolomide
Tenex
Teniposide
Tenoretic
Tenormin
Tenuate
Terazosin
Terbinafine
Terbutaline
Terconazole
Terfenadine
Teriparatide
Terlipressin
Tessalon
Testosterone
Tetrabenazine
Tetracaine
Tetracycline
Tetramethrin
Thalidomide
Theo-24
Theobid
Theochron
Theoclear
Theolair
Theophyl
Theophyl
Theostat 80
Theovent
Thiamine
Thiomersal
Thiopental sodium
Thioridazine
Thorazine
Thyroglobulin
Tiagabine
Tianeptine
Tiazac
Ticarcillin
Ticlopidine
Tikosyn
Tiletamine
Timolol
Timoptic
Tinidazole
Tioconazole
Tirapazamine
Tizanidine
TobraDex
Tobramycin
Tofranil
Tolazamide
Tolazoline
Tolbutamide
Tolcapone
Tolnaftate
Tolterodine
Tomoxetine
Topamax
Topicort
Topiramate
Tora
Toradol
Toremifene
Tracleer
Tramadol
Trandate
Tranexamic acid
Tranxene
Tranylcypromine
Trastuzumab
Trazodone
Trenbolone
Trental
Trest
Tretinoin
Triacetin
Triad
Triamcinolone
Triamcinolone hexacetonide
Triamterene
Triazolam
Triclabendazole
Triclosan
Tricor
Trifluoperazine
Trilafon
Trileptal
Trimetazidine
Trimethoprim
Trimipramine
Trimox
Triprolidine
Triptorelin
Tritec
Trizivir
Troglitazone
Tromantadine
Trovafloxacin
Tubocurarine chloride
Tussionex
Tylenol
Tyrosine
U
V
W
X
Y
Z

Some topical eye anesthetics are also used in otolaryngology, like for example oxybuprocaine.

Use of topical eye anesthetics in ophthalmology

Topical eye anesthetics are used in ophthalmology in order to numb the surface of the eye (the outermost layers of the cornea and conjunctiva) for the following purposes:

  • In order to perform a contact/applanation tonometry.
  • In order to perform a Schirmer's test (The Schirmer's test is sometimes used with a topical eye anesthetic, sometimes without. The use of a topical eye anesthetic might impede the reliability of the Schirmer's test and should be avoided if possible.).
  • In order to remove small foreign objects from the uppermost layer of the cornea or conjunctiva. The deeper and the larger a foreign object which should be removed lies within the cornea and the more complicated it is to remove it, the more drops of the topical eye anesthetic are necessary to be dropped onto the surface of the eye prior to the removal of the foreign object in order to numb the surface of the eye with enough intensity and duration.

Duration of topical eye anesthesia

The duration of topical eye anesthesia might depend on the type of the topical eye anesthetic and the amount of eye anesthetic being applied, but is usually about half an hour.

Topical eye anesthetics abuse

Topical eye anesthetics can cause irreversible corneal damage and even complete destruction of the cornea when excessively used (excessive use means several times a day during several days or even weeks).

Some patients who suffer from eye pain, which is often considerably strong neuropathic pain caused by the irritation of the nerves within the cornea and/or conjunctiva, unfortunately try to illegally obtain oxybuprocaine or other eye anesthetics (for example by stealing them at their ophthalmologist, by forging medical prescriptions or by trying to order it via an online pharmacy) and secretly use the substance to numb their eye pain, often ending up with irreversible corneal damage or even destruction (which is a vicious cycle and causes even much more pain). Often, such patients finally require corneal transplantation.

This behaviour of the patients could be easily prevented by correct and timely information about centrally acting substances that drastically reduce such eye pain (see next section). Unfortunately, ophthalmologists often do not inform their patients about the correct treatment of neuropathic eye pain.

Correct medical treatment of prolonged and chronic eye pain

In case of prolonged or chronic eye pain, especially neuropathic eye pain, it is highly advisable to use rather centrally acting substances like anticonvulsants (pregabalin, gabapentin and in more serious cases carbamazepine) or antidepressants (for example SSRIs or the tricyclic antidepressant amitriptyline) than a topical eye anesthetic because a topical eye anesthetic very quickly begins to damage the cornea if applied too often. Even very small amounts of an anticonvulsant and/or an antidepressant can almost completely stop eye pain and does not damage the eye at all.

Read more at Wikipedia.org


[List your site here Free!]


Spinal anaesthesia with bupivacaine and tetracaine with special reference to motor block and bladder function (Linköping University medical dissertations)

A randomized controlled trial of the effectiveness of topical amethocaine in reducing pain during arterial puncture - clinical investigations - tetracaine
Objective: To determine if topical 4% amethocaine gel can reduce the pain associated with arterial punctures. Design: Randomized, placebo-controlled, ...
Lidocaine Hydrochloride 4%, Epinephrine Hydrochloride 0.05% and Tetracaine Hydrochloride 0.5% Topical Spray
METHOD OF PREPARATION 1. Calculate the required quantity of each ingredient for the total amount to be prepared. 2. Accurately weigh and/or measure each ...
Plain ophthalmic tetracaine vs. buffered preparation - Tips from Other Journals
Examination of patients with eye problems often requires topical ophthalmic anesthesia. Tetracaine hydrochloride solution commonly is used because it ...
Synera topical anesthesia approved by FDA
The FDA recently approved Zars, Inc.'s Synera, a lidocaine-tetracaine 70-mg/70-mg topical patch to provide local dermal anesthesia for superficial venous ...
Compounding for a Pediatric Hospital
Treating children can be a real challenge for physicians and pharmacists. Most drugs approved by the US Food and Drug Administration are not indicated ...
Phase 3 studies demonstrate broad utility of LT peel
National report -- Results achieved in a series of studies comprising an extensive phase 3 clinical research program support the conclusion that a self-occlusive ...
Transdermal Treatment of Pain
What types of drugs are found in transdermal preparations? * Many doctors choose to combine two or more types of medications in the transdermal preparation.
Safety study of S-Caine Peel before a painful dermatologic procedure in adults
This study is currently recruiting patients. Sponsored by ZARS, Inc. The purpose of this study is to evaluate the safety of one treatment of S-Caine[TM] ...

Home Contact Resources Exchange Links ebay