Question regarding eye floater

I notice a thread (shape of a worm) in my vision field of right eye, when i stir eye in bright light (like clear sunny day sky) and this thread moves leftwards when i try to focus on it i also notice few very tiny bubbles around this thread.

An ophthalmologist applied pressure on that eye few months ago & i notice this thread after 1 month after the examination,i don't know if i had this thread before that exam.

Can tonometry or other pressure applying eye tests can cause these threads after months?

[Ray T Oyakawa, MD]

This was not caused by an eye exam.  You need to see an ophthalmologist.  A new onset of floater may indicate a  retinal tear or one that may occur in the next few months.  This could lead to a retinal detachment.

Dr. O.

[des900]

Thanks Doctor

After that incident (one ophthalmologist applied pressure on bottom of eyes using his thumb to evaluate meibomian gland secretion) onwards i am scared to see an ophthalmologist as he may again apply one like that.

can tonometry or other pressure applying eye tests have any side effects like floaters,blurriness etc ?

[Ray T Oyakawa, MD]

No, no, and no.  We exam the peripheral retina by a technique call scleral depression.  This applies pressure to the peripheral retinal through the sclera and require much more force than squeezing a meibomian gland or tonometer.

Dr. O.

[des900]

Thanks Doctor for clarification